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`PATENT ABSTRACTS OF JAPAN
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`(11)Publication number :
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`2000-286874
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`(43)Date of publication of application 2 13.10.2000
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`(51)Int.Cl.
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`(21)App|ication number : 11-090570
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`(71)AppIicant : SUZUKI MOTOR CORP
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`(22)Date of filing :
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`31.03.1999
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`(72)|nventor : UEMURA HIROSHI
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`(54) ON-VEHICLE HEAD UNIT AND ON-VEHICLE EXTERNAL DEVICE
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`(57)/—\bstract:
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`PROBLEM TO BE SOLVED: To provide an external
`device for an on-vehicle audio unit which device is
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`inexpensive and easily used.
`SOLUTION: An on-vehicle head unit 2 is provided with
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`1%;
`.«
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`I
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`an amplifier 8 that amplifies an audio signal from an 1
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`internal music source 4, an external unit connector 10 for “
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`connecting the head unit 2 to an external device, a
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`changeover switch 18 that selects an audio signal
`received from the external device connected to the
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`external unit connector 10 via a cable or the audio signal
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`received from the internal music source, and a control
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`means 6 that controls switching between the internal
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`music source 4 and the external device 30. Furthermore,
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`an external device connector 31 is provided with bus use
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`pin connection terminals connected to a plurality of bus pins for bus connection, two control
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`pin connection terminais provided along the bus pins to sendlreceive a control signal, and a
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`connector main body engaging one cable connected to the external device and having the
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`bus pins and the control pins.
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`http://wwwl9.ipd1.inpit.gojp/PA1/result/detail/main/wAAAD_VaiNUD,!§;412286874P1 .htm 10/2112008
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`JP, 2000286874, and A [Drawing 7]
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`Page 1 of I
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`12$
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`Drawing selection
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`[Translation done.]
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`L[P,2000-286874,A [CLAIMS]
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`Page 1 of I
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`* NOTICES *
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`JPO and INPIT are not responsible for any
`damages caused by the use of this translation.
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`1 .This document has been translated by computer. So the translation may not reflect the
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`original precisely.
`2.**** shows the word which can not be translated.
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`3.|n the drawings, any words are not translated.
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`CLAIMS
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`[C|aim(s)]
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`[Claim 1]Ampiifier which amplifies an audio signal characterized by comprising the following
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`from an internal music source, A changeover switch which changes an external device
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`connector which connects an external instrument, and an audio signal inputted from an
`external instrument connected to this external device connector via a cable and an audio
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`signal inputted from said internal music source, A head unit for mount provided with a control
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`means which controls a change to said internal music source and said external instrument.
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`A pin connection terminal for buses of plurality [ external device connector / said ] for bus
`connections.
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`Two pin connection terminals for control which are putside by side at this pin for buses, and
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`send and receive a control signal.
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`Said pin for buses connected with said external instrument, and said control pin.
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`[Claim 2]Said control means, the time of said start up -— said pin for buses, and said control pin
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`-- a connection check signal -- the head unit for mount according to claim 1 provided with the
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`1st starting connection control section that sets up a pin connection terminai of a side which it
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`each transmitted and had a response in the connection check signal concerned as it is
`effective.
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`[Claim 3]Said control means, Make one side into a high in fixed time which was able to be
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`defined beforehand between said two pin connection terminals for control at the time of said
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`start up, and. The head unit for mount according to claim 1, wherein after the fixed time
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`progress concerned is provided with the 2nd starting connection control section that returns an
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`output to the two pin connection terminals for control concerned to a front state at the time of
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`said start up.
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`‘_.TP,2000-286874,A [DETAILED DESCRIPTION]
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`Page I of 6
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`* NOTICES *
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`JPO and INPIT are not responsible for any
`"damages caused by the use of this translation.
`
`1.ThEs document has been translated by computer. So the translation may not reflect the
`
`original precisely.
`2.**** shows the word which can not be translated.
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`3.ln the drawings, any words are not translated.
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`DETAILED DESCRIPTION
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`[Detailed Description of the invention]
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`[0001]
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`[Field of the lnvention]This invention relates to the head unit for mount, and the external
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`instrument for mount, and relates to the head unit for mount and the external instrument for
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`mount which have the feature in the connection type at the time of extending the external
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`instrument for mount to the head unit for mount especially.
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`[0002]
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`[Description of the Prior Art]Conventional|y, the head unit of the audio for mount and the
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`connection type of an external instrument have two copies, deck connection and a bus
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`connection. Generally, a head unit is for example, a cassette with FMIAM radio, and, on the
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`other hand, an external instrument is a CD player, an MD player, or TV.
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`[0003]
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`[Problem(s) to be Solved by the Invention]!-lowever, in the above-mentioned conventional
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`example, since the connection type of deck connection and a bus connection was
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`incompatible, there was inconvenience that the CD player had to prepare two kinds, the object
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`for deck connection and the object for bus connections. for this reason, when a user selects an
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`external instrument, its head unit is an object for deck connection -- or it had to be checked
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`whether it was an object for bus connections.
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`[0004]
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`[Objects of the lnvention]This invention improves the inconvenience which the starting
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`conventional example has, and sets it as the purpose to provide the head unit for mount which
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`shall be low cost and shall be especially easy to use the external instrument of the audio for
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`mount, and the external instrument for mount.
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`[0005]
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`[Means for Solving the Problem]So, in a head unit for mount by this invention. Amplifier which
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`6JP,20O0-286874,A [DETAILED DESCRIPTION]
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`Page 2 of 6
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`ampiifies an audio signal from an internai music source, and an external device connector
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`which connects an external instrument, It has a changeover switch which changes an audio
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`signal inputted from an external instrument connected to this external device connector via a
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`cable, and an audio signal inputted from said internal music source, and a control means
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`which controls a change to said internal music source and said external instrument. And a pin
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`connection terminal for buses of plurality [ external device connector] for bus connections,
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`Composition of having had a connector body engaged in one cable which has two pin
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`connection terminals for control which are put side by side at this pin for buses, and send and
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`receive a control signal, and said pins for buses connected with said external instrument and
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`said control pins is taken. It is going to attain the purpose which this mentioned above.
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`[00O6}Here, since an external device connector was provided with a pin connection terminal for
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`buses for bus connections, and a pin connection terminal for control for deck connection, even
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`if it is an external instrument of which connection form, it is connected by the same cable. For
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`this reason, it is not necessary when purchasing an external instrument to choose an external
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`instrument according to connector shape of a head unit.
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`[0007]
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`[Embodiment of the lnvention]Hereafter, an embodiment of the invention is described with
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`reference to drawings. Drawing 1 is a block diagram showing composition with the externai
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`instrument for mount iinked to the head unit for mount by this invention, and the head unit for
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`mount concerned. As shown in drawing_1, the head unit 2 for mount is provided with the
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`following.
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`Amplifier 8 which amplifies the audio signal from the internal music source 4.
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`The external device connector" 10 which connects an external instrument.
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`The changeover switch 18 which changes the audio signal inputted from the external
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`instrument connected to this external device connector 10 via a cable, and the audio signal
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`inputted from said internal music source.
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`The controi means 6 which controls the change to said internal music source 4 and said
`external instrument 30.
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`[0008]And the pin connection terminal for buses (BUS+ and - of the pin numbers 1 and 2 of
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`drawing 2) to which the external device connector 31 connects two or more pins 12 for buses
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`for bus connections as shown in drawing 2, Two pin connection terminals for control (CONT1
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`of the pin numbers 5 and 13 of drawing 2, and 2) which are put side by side at this pin for
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`buses, and send and receive a control signal, it has the connector body 11 engaged in one
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`cable which has said pin for buses connected with said external instrument, and said control
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`pin.
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`[0009]As shown in drawing 2, in this embodiment, the connector and signal line which connect
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`http: //Www4.ipd1 .inpit.go.jplcgi-bin/tran_web_cgi_ejj e?atw_u=http%3A%2F%2Fwww4.i. . . 10/21/2008
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`_.TP,2000-286874,A [DETAILED DESCRIPTION]
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`Page 3 of 6
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`the head unit 2 and the external instrument 30 are made into the gestalt containing both the
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`object for deck connection, and for bus connections. The deck connection D is a method which
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`accepts one external instrument and connects, as shown in drawing 3 (A). The strong point is
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`in the point which can be manufactured by low cost, and it being only one set of connection
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`and the point which cannot control a CD changer etc. by operation of a head unit have
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`management. In deck connection, while the internal music source (radio, tape) of a head unit
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`operates, CONT1 is made into "Hi", and while the external instrument operates, CONT2 is
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`made into "Hi", for example. An external instrument will make CONT1 "Hi", if the head unit
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`operates working. According to this, an external instrument suspends reproduction and makes
`CONT2 "Lo".
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`[0010]On the other hand, connection of two or more sets of external instruments is possible for
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`a bus connection, and it can control CD changer y- etc. by a head unit. At a bus connection, an
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`address is assigned to each apparatus, and it connects by bus, and cooperates by exchanging
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`the demand of operation, a stop, etc. In a bus connection, since IC for communication is
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`needed and microcomputer processing increases, cost will become high. Generally, deck
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`connection is used for low—priced goods, and the bus connection is used for quality articles.
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`[0011]a head unit is a bus connection in using 13 pins of the method shown in drawing 2 in this
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`embodiment, as shown in drawing 1 —— or aithough it is deck connection, it cannot be
`concerned, but the same external instrument can be connected. The reproduction means 34
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`which plays the alien-frequencies easy sauce in which an external instrument turns into an
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`external instrument to a head unit, such as TV, CD, or MD, in the example shown in drawing 1,
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`The connector 31 for head units for transmitting the audio signal reproduced by this
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`reproduction means 34 to said head unit via a cabie, It has the external instrument control
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`means 32 which controls said reproduction means 34 according to the control signal inputted
`from this connector 31 for head units. And the connector 31 for head units has taken the same
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`shape as the external device connector mentioned above, and structure. And it has the
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`connection type switching means which chooses either said pin connection terminal for control,
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`or said pin connection terminal for buses for a reproduction means according to the connection
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`check signal inputted from the connector for head units. In order that this connection type
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`switching means may choose a bus connection or deck connection according to the
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`connection type which a head unit adopts, it becomes unnecessary for a user to check the
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`connection type of a head unit. This is preferred when the head unit side supports only deck
`connection or a bus connection.
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`[O012]When the head unit side supports both connection types and the external instrument
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`supports only one connection type, The control means 6 of the head unit 2 shown in drawing 1,
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`the time of start up (at the time of ACC ON) -- the pin for buses, and said control pin -- a
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`connection check signal -- it each transmits and it is good to have the 1st starting connection
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`.lP,2000-286874,A [Di:*fl'AlLED DESCRIPTION]
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`Page 4 of 6
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`control section 20 that sets up the pin connection terminal of the side which had a response in
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`the connection check signal concerned as it is effective.
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`[0O13]When the head unit supports only deck connection, It replaces with the 1st starting
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`connection control section 20, One side is made into the high in fixed time which was able to
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`be defined beforehand between said two pin connection terminals for control at the time of
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`start up, and after the fixed time progress concerned is good to have the 2nd starting
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`connection control section that returns the output to the two pin connection tenninals for
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`control concerned to a front state at the time of said start up. In this case, deck connection is
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`established between the external instrument only corresponding to deck connection, or the
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`external instrument corresponding to both connection types.
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`[0O14]Drawing 4 is a biock diagram showing the example which connected two or more sets of
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`external instruments using the connection type of 13 pins by this embodiment. The connector
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`shown in drawing 2 is adopted in the example shown in drawing 4, being oniy for deck
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`connection, in order to make a head unit into low cost. And TV which has a navigational panel
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`as an external instrument is formed, and the bus connection of two sets of other external
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`instruments is carried out from this TV. And the music source which transmits to a head unit
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`via deck connection by operating the navigational panel of TV is chosen. If other external
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`instruments 30 and 38 shown in drawing 4 should correspond to both deck connection and a
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`bus connection further, having a connector shown in drawing 2, being concerned -- others -- it
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`becomes unnecessary to be also able to connect an external instrument to the head unit 2
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`directly, and to choose the connection type and connector of an external instrument according
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`to the gestalt of connection
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`[O015]The externai instrument 40 shown in _t_:l_rgy_\_(in_gj_is provided with the two or more
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`expansion connectors 41 linked to a head unit or other external instruments. And the
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`expansion connector concerned has taken the same form as the externai device connector
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`shown in gawing 1, and structure. And the external instrument control means used as the
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`controlier of this external instrument 40, Deck connection is made by setting up said pin
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`connection terminat for control to the connector 41 to which the head unit 2 was connected, as
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`it is effective, It has two or more connect control part which carries out a busponnection by
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`setting up said pin connection terminal for buses effectively to the connector 41 to which other
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`external instruments were connected. Thereby, making the head unit 2 into low cost, two or
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`more sets of external instruments are connectable, and since it is altogether connectable using
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`the same cable, connection and selection of apparatus become easy.
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`[0O16]Drawing 5 is a block diagram showing the composition of the example of the head unit
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`for mount by this invention. The head unit for mount shown in drawiggiis a cassette with
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`FMIAM radio. As shown in drawing 5, the cassette with FM/AM radio (head unit) is provided
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`with the following.
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`http://WWW4. ipdljnpit. go.jp/'cgi-bin/tran_web_Acgi_ejjc?atw_u=http%3 A%2F%2FwwW4.i. ..
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`Honda Exhibit 1019
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`.TP,2000-286874-,A [DETAILED DESCRIPTION]
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`Page 5 of 6
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`The tuner circuit 52 which sides with the electric wave received with a vehicular antenna.
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`Tape equalizer amplifier 53 which amplifies the regenerative signal from the tape head 54
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`which plays a cassette tape.
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`Grand isolation amplifier 55 which amplifies the audio signal inputted from the external
`instrument 30.
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`The audio signal changeover switch 18 which changes the audio signal from these music
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`sources according to a switching signat.
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`[0017]The cassette 2 with FM/AM radio is provided with the BORIUMU circuit? which adjusts
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`further amplification of the audio signai inputted from a changeover switch, and the power
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`amplification 8 which amplifies the output of this BORIUMU circuit. This power amplification 8
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`is connected to the speaker 16. And it has the control oriented microcomputer 6 as a control
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`means by which deck connection is made with the external instrument 30.
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`[OO18]As shown in drawing 6_, transmission and reception of the connection check signal at the
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`time of AccON perform establishment of connection between the cassette 2 with FM/AM radio,
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`and an external instrument. Dr_av\_lr_i_ng 6 (A) is a wave form chart showing an example of the
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`connection check signal for establishing deck connection, and the cassette 2 with FM/AM radio
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`is 500 at the time of AccON, [ms] CONT1 is made into "Hi". This transmits to an external
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`instrument that the cassette 2 with FMIAM radio is demanding deck connection. In order for
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`the cassette 2 with FMIAM radio to require a bus connection of an external instrument, as
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`shown in drawing 6 (B), he transmits the pulse signal which turns into a connection check
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`signal immediately after at the time of Acc0N to each apparatus, and waits for the reply. If the
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`signal according to the connection check signal concerned is inputted from an external
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`instrument, the externa! instrument concerned and bus connection will be established.
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`[0019]/its shown in drawing], the head unit which the external instrument 30 checks a bus
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`signal and CONT1 signal at the time of AccON, and is connected nowjudges which method it
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`is. That is, when it comes to AccON, it checks whether the connection check signal for bus
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`connections has been inputted (Step S1), and a bus connection is established when the signal
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`shown in drawing 6 (B) is inputted (Step S2). On the other hand, when the connection check
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`signal for bus connections is not inputted, it is judged whether CONT1 shown in drawing 6 (A)
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`is "HE" (Step 83). And deck connection will be established if CONT1 is "Hi" (step S4).
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`[0020]When a bus signal and CONT1 are not inputted for 2 seconds from AccON, an external
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`instrument transmits the bus signal of a connection request to a head unit.
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`[O021]According to this embodiment, as mentioned above, put wiring of two methods, deck
`connection and a bus connection, in one connection connector, and and an external
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`instrument, Variety can be lessened, and when a user selects an external instrument, it
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`becomes unnecessary for its head unit to take into consideration which connection type it is,
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`http ://wWw4.ipdl. inpit. go.j p/cgi—bi11/1;ran_web_cgi_ejj e?atw_u=http%3 A%2F%2Fwww4.i . .. 10/21/200 8
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`Honda Exhibit 1019
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`Page 313 of 1062
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`II»\«)\1LA1u.....s...m...~..w_...v...w......_..w.w.___.....m...~.__....m..\...‘......,...m.......»......m..\».....,...a..~,_.".p.w.rm....".~,_...4........e.........W,_..s.W.......c........M.mM......,..m..r1ViVI¥IVntvmV%1IV1r1TjVV‘VTlNVTIw....V..........M......“....,..M............cm......w.....m.«...w....m.=.=....L-,m..m..W...m.m.mm.=..w...m.......ws.m.M.»..»mw..sw.....=:5-.v!\v\unao(=|\J1"~
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`Honda Exhibit 1019
`Page 313 of 1062
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`

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`nJP,2000-286874,A [DETAILED DESCRIPTION]
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`Page 6 of 6
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`since the external instrument can respond by 1 model in order to identify of which method the
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`connected head unit is a thing.
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`[0022]
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`[Effect of the |nvention]Since this invention was constituted as mentioned above, and
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`functioned and the externai device connector was provided with the pin connection terminal for
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`buses for bus connections, and the pin connection terminal for control for deck connection
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`according to this, Even if it is an external instrument of which connection form, can connect by
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`the same cable, therefore it is not necessary to manufacture an external instrument according
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`to connector shape about the external instrument of the same function and, and a user faces
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`the purchase of an external instrument, it is not necessary to choose an external instrument
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`according to the connector shape of a head unit, and, for this reason, the outstanding head
`unit for mount and the externat instrument for mount which are not in the former that the
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`extension work of an external instrument can be done easily can be provided.
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`[Translation done.]
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`http://www4.ipd1.inpit.go.jp/cgi-bin/tran_web_cgi_cjjc?atw_u=http%3A%2F%2FwwW4.i... 10/21/2008
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`Honda Exhibit 1019
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`Page 314 of 1062
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`Honda Exhibit 1019
`Page 314 of 1062
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`

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`_ JP,2000-286874,A [TECHNICAL FIELD}
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`Page 1 of 1
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`* NOTiCES *
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`JPO and INPIT are not responsible for any
`damages caused by the use of this translation.
`
`1.This document has been translated by computer. So the translation may not reflect the
`
`original preciseiy.
`2.**** shows the word which can not be translated.
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`3.ln the drawings, any words are not translated.
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`TECHNICAL FIELD
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`[Field of the |nvention]This invention relates to the head unit for mount, and the external
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`instrument for mount, and relates to the head unit for mount and the external instrument for
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`mount which have the feature in the connection type at the time of extending the external
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`instrument for mount to the head unit for mount especially.
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`[Translation done.]
`
`http :.//WWW4. ipdljnpit. go .j p/cgi -bin/tran_web_cgi_ejj e?atw_u=http%3 A%2F%2Fwww4.i.. . 10/21/2008
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`Honda Exhibit 1019
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`Page 315 of 1062
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`m“am=..n=.=u=a.v..m..=.m..=.g.»....um.ma.a=.wu.um.....».,.....t...:M.=.......,....=.=.-_u,e,u-,..at....‘.s.mgwa.um..w......w,psmmm.m..mwm-....m.....w.....-.n...=.a-;=.\...m.-.=..-..«.m,....t,..w.wa.nWt-mam-.=swsm-=.%3m.==..=wam-H-,.ww.........=.......m....\.»/.'M‘:(4(‘hr-1|‘4-‘\A'V4l-\|ml>uJ:\:\vi\:t\vvn4..w...t......\.........-....a........_.
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`Honda Exhibit 1019
`Page 315 of 1062
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`

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`JP,2000-286874,A [PRIOR ART]
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`Page 1 of 1
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`* NOTICES *
`
`JPO and INPIT are not responsible for any
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`damages caused by the use of this translation.
`
`1.This document has been translated by computer. So the translation may not reflect the
`
`original precisely.
`2.**** shows the word which can not be translated.
`
`3.|n the drawings, any words are not translated.
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`PRIOR ART
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`H-NW..._~—......._..—,—....—------v-—-ww-wm..w..w-.W=.=mwmmm
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`[Description of the Prior Art]Conventiona||y, the head unit of the audio for mount and the
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`connection type of an external instrument have two copies, deck connection and a bus
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`connection. Generally, a head unit is for example, a cassette with FMIAM radio, and, on the
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`other hand, an external instrument is a CD player, an MD player, or TV.
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`[Translation done.]
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`_-=,=n...smw..s....t-..=...-mme.....mwmw-.WW-4;.u.,..x-.,.4..4_.,.t
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`http ://www4.ipdl .inpit.go .j p/cgi-bin/u'anMWeb__cgi_ejj e?atw_u=http%3A%2F%2FwWw4.i . .. 10/21/2008
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`Honda Exhibit 1019
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`Page 316 of 1062
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`Honda Exhibit 1019
`Page 316 of 1062
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`

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`,JP,2000-286874,A [EFFECT OF THE INVENTION]
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`Page 1 of1
`
`* NOTICES *
`
`JPO and INPIT are not responsible for any
`damages caused by the use of this translation.
`
`1.This document has been translated by computer. So the translation may not reflect the
`original precisely.
`1
`2.**** shows the word which can not be translated.
`
`3.ln the drawings, any words are not translated.
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`EFFECT OF THE INVENTION
`..........w.....,,___-...
`..._......,,,,.,,,,,,mm.,,,,MW,,..M.._.,.,~mmM.
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`mm...—__................_,_,.,..,,.,,....,...,,.,.m.,.m
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`[Effect of the |nvention]Since this invention was constituted as mentioned above, and
`functioned and the external device connector was provided with the pin connection terminal for
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`buses for bus connections, and the pin connection terminal for control for deck connection
`
`according to this, Even if it is an external instrument of which connection form, can connect by
`
`the same cable, therefore it is not necessary to manufacture an external instrument according
`to connector shape about the external instrument of the same function and, and a user faces
`
`the purchase of an external instrument, It is not necessary to choose an external instrument
`
`according to the connector shape of a head unit, and, for this reason, the outstanding head
`unit for mount and the external instrument for mount which are not in the former that the
`
`extension work of an external instrument can be done easily can be provided.
`
`[Translation done.]
`
`http://www4.ipd1 .inpit.go .3"p/cgi-bin/tran_web_cgi_ejj e‘?atw_u=http‘/a3A%2F%2Fwww4.i. . .
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`1 0/2 1/2008
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`Honda Exhibit 1019
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`Page 317 of 1062
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`Honda Exhibit 1019
`Page 317 of 1062
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`

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`IIP,2000-286874,A [TECHNICAL PROBLEM]
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`Page 1 of 1
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`* NOTICES *
`
`JPO and INPIT are not responsible for any
`damages caused by the use of this translation.
`
`1.This document has been translated by computer. So the translation may not reflect the
`
`original precisely.
`2.**** shows the word which can not be translated.
`
`3.ln the drawings, any words are not translated.
`
`TECHNICAL PROBLEM
`--m--ye;.'.WJ~.'"7":*.He~'--M:V!*:rr*rvcW.w*.'n4*:MK-MW-it-rv:~=l-m\'mr:v:>wvm:WYXMNUIVWWWVI"'1‘F"WV'"""""'“""—"""""""""""""
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`[Prob|em(s) to be Solved by the lnvention]However, in the above-mentioned conventional
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`example, since the connection type of deck connection and a bus connection was
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`incompatible, there was inconvenience that the CD player had to prepare two kinds, the object
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`for deck connection and the object for bus connections. for this reason, when a user selects an
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`external instrument, its head unit is an object for deck connection -- or it had to be checked
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`whether it was an object for bus connections.
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`[0004]
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`[Objects of the lnvention]This invention improves the inconvenience which the starting
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`conventional example has, and sets it as the purpose to provide the head unit for mount which
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`shall be low cost and shall be especially easy to use the external instrument of the audio for
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`mount, and the external instrument for mount.
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`[Translation done.]
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`http://WWw4.ipd1.'1npit.gozip/cgi-bin/tran_web_cgi_ejje?atw_u=http%3A%2F%2FWww4.i... 10/21/2008
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`Honda Exhibit 1019
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`Page 318 of 1062
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`...t.\-Ihl.\Au&l.I5.\n£l'(II»(\L\|4_l|\!._._._.._-_..,w.s...w..._J.,use......J.c.c,...c...._...,.......,.._.“....c.s...t..-...........c...._..A.....,.s..,......_.-_..__.....s,.s...A.c..,\..>»L4\r-A>"¢‘<L-xgu-4»\lLAn/;<A/‘—':{Al|h4-‘k\\»A""~.l.,~.,m.,.4...,.,u.,,.,...4...xwntnnw-nvv\v1|\:\lmw$:m\:\|w.I-A‘-«actmmwnannwusuvunwwmrhv«waw.n.I(.unn-.wae~«m\n».<-vaumavynawu-uv—u.....M..m.................M.......~..__.i.._.,...1.....,VJ}wt...AV..........,......M.m
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`Honda Exhibit 1019
`Page 318 of 1062
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`

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`_JP,2000—286874,A [MEANS]
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`Page 1 of 5
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`* NOTICES *
`
`JPO and INPIT are not responsible for any
`damages caused by the use of this translation.
`
`1.This document has been translated by computer. So the translation may not reflect the
`
`original precisely.
`2.**** shows the word which can not be translated.
`
`3.ln the drawings, any words are not translated.
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`MEANS
`-m.m».w.» rmvwamuawinwivmmmwwwmrswwnwwwmmwwmswwmmw:.:»cmk:~»o~1al.vv:~l.~vov:~:~;~v\vv:1vw:vv:v:»(:w«»<:~:imm.mmm-Mwm...=~wivmmis.....m.m.=—.m-W-4w":-m.,..vmss.v—mm-=«=--W-WivNN-m-n-"_—..---.-——--—-----——~--w-ya-—---—---—
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`[Means for Solving the Prob|em]So, in a head unit for mount by this invention. Amplifier which
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`amplifies an audio signal from an internal music source, and an external device connector
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`which connects an external instrument, It has a changeover switch which changes an audio
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`signal inputted from an external instrument connected to this externai device connector via a
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`cable, and an audio signal inputted from said internal music source, and a control means
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`which controls a change to said internal music source and said external instrument. And a pin
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`connection terminai for buses of plurality [ external device connector] for bus connections,
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`Composition of having had a connector body engaged in one cable which has two pin
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`connection terminals for control which are put side by side at this pin for buses, and send and
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`receive a control signal, and said pins for buses connected with said external instrument and
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`said control pins is taken. It is going to attain the purpose wh