(12) United States Patent
`Xiao
`
`US006663420B1
`US 6,663,420 B1
`Dec. 16, 2003
`
`(10) Patent No.:
`(45) Date of Patent:
`
`(54) ADAPTER FOR EXCHANGING DATA AND
`TRANSMITTING POWER BETWEEN PC
`AND PORTABLE DEVICE
`
`(75) Inventor: Hui Xiao, Kunsan (CN)
`(73) Assignee: Hon Hai Precision Ind. Co., Ltd.,
`Taipei Hsien (TW)
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 0 days.
`
`(*) Notice:
`
`(21) Appl. No.: 10/325,172
`(22) Filed:
`Dec. 19, 2002
`(30)
`Foreign Application Priority Data
`Nov. 15, 2002
`(TW) ...................................... 91218338 U
`(51) Int. Cl." ................................................ H01R 11/00
`(52) U.S. Cl. ........................................ 439/502; 307/150
`(58) Field of Search ................................. 439/502, 620,
`439/79, 540.1, 638; 307/149, 150, 151
`
`(56)
`
`References Cited
`U.S. PATENT DOCUMENTS
`
`5,584,709 A * 12/1996 Kiat ............................ 439/79
`
`2/2001 Yang
`6,184,652 B1
`6,206,724 B1 * 3/2001 Leung ..................... 439/540.1
`6,211,649 B1
`4/2001 Matsuda
`6,371,809 B1 * 4/2002 Chun-Yuan ................. 439/607
`6,534,885 B2 * 3/2003 Nakagawa et al. ......... 307/150
`* cited by examiner
`Primary Examiner—Gary Paumen
`Assistant Examiner—James R. Harvey
`(74) Attorney, Agent, or Firm—Wei Te Chung
`(57)
`ABSTRACT
`An adapter (100) is adapted to connect a Personal Computer
`(PC) to a portable device (such as a mobile phone) to support
`data exchange and power transmitting therebetween. The
`adapter comprises a first connector (10), a second connector
`(20), and a cable (30) electrically connecting the two con
`nectors. The first connector electrically connects to the PC,
`and the second connector electrically connects to the por
`table device. A power converting circuit (40) and a data
`transmitting circuit (50) are disposed on a printed circuit
`board (PCB) housed in the second connector. Power from
`the PC passes through the first connector, the cable, the
`power converting circuit, and through the second connector
`to the portable device. Data is exchanged between the PC
`and the portable device via the first connector, the cable, the
`data transmitting circuit, and the second connector.
`1 Claim, 3 Drawing Sheets
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`202
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`HTC EXHIBIT 1021
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`Dec.16, 2003
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`U.S. Patent
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`U.S. Patent
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`US 6,663,420 B1
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`US 6,663,420 B1
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`1
`ADAPTER FOR EXCHANGING DATA AND
`TRANSMITTING POWER BETWEEN PC
`AND PORTABLE DEVICE
`
`BACKGROUND OF THE INVENTION
`
`1. Field of the Invention
`This invention relates to an adapter, and more particularly
`to an adapter for connecting a Personal Computer (PC) and
`a portable device (such as a mobile phone).
`2. Description of Related Art
`With recent technological improvements, portable
`devices, such as mobile phones, have gained more functions,
`and can now exchange data with a PC by using an adapter.
`The portable device has a port for connecting to the adapter,
`and the port has a plurality of contacts disposed therein. The
`contacts include power contacts and data contacts. Adapters
`currently on the market include power adapters and data
`adapters which each have a plug for connecting to a portable
`device, but the plugs differ in the location and number of the
`contacts used in the plug. Power adapters are used to charge
`the portable device; data adapters are used to exchange the
`data with a PC. However, if a portable device which is low
`in power is exchanging data with a PC using a data adapter,
`data exchange may stop and the portable device may first
`need to be recharged using a power adapter. Switching
`between the power adapter and data adapter is inconvenient.
`Universal Serial Bus (USB) interfaces are widely used on
`PCs today, so many data adapters have a standard USB plug
`for connecting to a standard USB port on the PC. Standard
`USB ports also include power terminals. An improved
`adapter providing power and data through a USB interface
`between a portable device and a PC is desired so that the PC
`can transmit power to the portable device while the portable
`device and the PC exchange data.
`
`SUMMARY OF THE INVENTION
`A main object of the present invention is to provide an
`adapter for exchanging data and transmitting power between
`a portable device and a PC at the same time.
`Another object of the present invention is to provide an
`adapter having a simple configuration which is easy to use.
`To fulfill the above-mentioned objects, an adapter accord
`ing to the present invention comprises a first connector
`electrically connecting to a PC, a second connector electri
`cally connecting to a portable device, and a cable electrically
`connecting the two connectors. A power converting circuit
`and a data transmitting circuit are disposed on a printed
`circuit board (PCB) housed in the second connector. The
`power from the PC passes through the first connector, then
`through the power converting circuit of the second connec
`tor to the portable device. The data is exchanged between the
`PC and the portable device via the adapter at the same time
`that the PC is recharging the portable device.
`Since the adapter has both a power converting circuit and
`a data transmitting circuit, it enables the portable device to
`exchange data with the PC while being charged by the PC.
`The adapter both has a simple configuration and is easy to
`llSè.
`Other objects, advantages and novel features of the inven
`tion will become more apparent from the following detailed
`description when taken in conjunction with the accompa
`nying drawings.
`
`2
`BRIEF DESCRIPTION OF THE DRAWINGS
`FIG. 1 is a perspective view of an adapter according to the
`present invention;
`FIG. 2 is an exploded view of a second connector of the
`adapter in FIG. 1; and
`FIG. 3 is a circuit diagram of the adapter in FIG. 1.
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`DETAILED DESCRIPTION OF THE
`INVENTION
`Referring to FIG. 1, an adapter 100 according to a
`preferred embodiment of the present invention comprises a
`first connector 10, a second connector 20, and a cable 30
`electrically connecting the two connectors. The first con
`nector 10 is for electrically connecting to a PC (not shown)
`and the second connector 20 is for electrically connecting to
`a portable device (such as a mobile phone, not shown). In the
`present embodiment, the first connector 10 is a standard
`USB plug, for electrically connecting to the PC via a
`standard USB port on the PC. The first connector 10 may
`also electrically connect to any other device having a
`standard USB port.
`Referring to FIG. 2, the second connector 20 of the
`adapter 100 comprises an insulative housing 201 securing a
`plurality of contacts 200 therewithin, a printed circuit board
`(PCB) 202 soldered to the contacts 200, an upper and a
`lower shields 203, 204 inclosing the housing 201 and the
`PCB 202, an upper and a lower covers 205, 206, and a pair
`of latches 207 held in two sides of the lower cover 206. The
`upper cover 205 has a press portion 208 for actuating the
`latches 207 to release the second connector 20 from engage
`ment with the portable device. A power converting circuit 40
`and a data transmitting circuit 50 (shown in FIG. 3) are
`disposed on the PCB 202. The second connector 20 may
`electrically connect to many kinds of portable devices, for
`example, to mobile phones, to Personal Digital Assistants
`(PDA), etc.
`Referring to FIG. 3, a circuit diagram of the adapter 100
`shows that the first connector 10 has four pins, including a
`power pin USB VDD for electrically connecting to a USB
`voltage at the USB port, a ground pin USB GND for
`electrically connecting to a ground, a D+ pin for transmitting
`or receiving a data signal D+, and a D-pin for transmitting
`or receiving a data signal D-. The second connector 20 has
`seventeen contacts, six of which are used in the present
`embodiment. The remaining contacts are provided for other
`applications.
`The PCB 202 is assembled in the second connector 20. A
`plurality of wires (not shown) of the cable 30 electrically
`connect the four pins of the first connector 10 to correspond
`ing contact pads (not shown) on the PCB 202. The contacts
`200 in the second connector 20 electrically connect with
`corresponding contact pads (not shown) on the PCB 202.
`The power converting circuit 40 (see FIG. 3) mainly
`comprises a voltage regulator IC (SP6650, not labeled). The
`pin 2 of the voltage regulator IC is input and electrically
`connects to the power pin USB VDD of the first connector
`10 through the cable 30. The pin 7 of the voltage regulator
`IC is output and electrically connects to the contact 3 (one
`of the contacts 200 in FIG. 2) of the second connector 20.
`The ground pin USB GND of the first connector 10 is
`electrically connected to ground on the PCB 202 via the
`cable 30. The contact 2 (one of the contacts 200) of the
`second connector 20 is electrically connected to ground on
`the PCB 202. In addition, the contact 1 (one of the contacts
`200) of the second connector 20 is electrically connected to
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`3
`ground on the PCB 202 for detecting whether the second
`connector 20 is correctly mated with the portable device.
`The D+ pin and the D– pin of the first connector 10
`respectively electrically connect to the contacts 5 and 4 (two
`of the contacts 200) of the second connector 20 via corre
`sponding wires in the cable 30 and conductive traces (not
`shown) disposed on PCB 202. Said conductive traces form
`the data transmitting circuit 50. The contact 6 (one of the
`contacts 200) of the second connector 20 electrically con
`nects to the power pin USB VDD of the first connector 10
`via conductive traces (not shown) on the PCB200 to provide
`a pulse signal for controlling the data transmission.
`Therefore, the power pin USB VDD, the ground pin
`USB GND, the D+ pin, and the D– pin of the first con
`nector 10 electrically connect to corresponding contact pads
`on the PCB 202 via a plurality of wires in the cable 30. The
`contacts 1, 2, 3, 4, 5, and 6 of the second connector 20 are
`electrically connected to corresponding contact pads on the
`PCB 202.
`The first connector 10 receives power from the PC, then
`the power passes through the cable 30 and the power
`converting circuit 40 to the portable device via contacts 200
`in the second connector 20. Data is exchanged between the
`PC and the portable device via the first connector 10, the
`second connector 20 (including conductive traces of the data
`transmitting circuit 50), and the cable 30. So the adapter 100
`enables the portable device not only to exchange data with
`the PC, but also to be charged from the PC simultaneously.
`Indeed, the adapter 100 can be connected to any other
`device having a standard USB port, getting power from the
`device via the standard USB port, then providing power to
`the portable device after power conversion.
`In addition, the first connector 10 can also use a standard
`IEEE 1394 (IEEE, Institute of Electrical and Electronics
`Engineers) plug instead of the standard USB plug, and can
`connect to the PC or any other device having a standard
`IEEE 1394 port via a standard IEEE 1394 port thereon.
`Therefore, power can be provided to the portable device via
`a standard IEEE 1394 port.
`Compared to the prior art, the adapter 100 according to
`the present invention has a power converting circuit 40 and
`a data transmitting circuit 50 in the second connector 20,
`which enables the portable device not only to exchange data
`with the PC, but also to be charged from the PC at the same
`time. Thus the portable device is more convenient to use. It
`is noted that because the second connector 20 is equipped
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`with the internal built-in printed circuit board with both the
`data transmitting circuits 50 and power converting circuits
`40 including components thereof, the length of the second
`connector may be little bit longer than the regular one which
`only transmits the data while without the charging function.
`On the other hand, because of the built-in power circuits of
`the second connector 20, there is no. need to provide an
`additional control unit between the first and second connec
`tors. Thus, only a simplex bendable/flexible cable is con
`nected between the first and second connector, and it results
`in easiness/flexibility of using and/or storing the whole
`adaptor set. Furthermore, the adapter 100 can be connected
`to any other device having a port compatible with the first
`connector 10 of the adapter 100, so can supply power from
`the device to the portable device for charging. In addition,
`the adapter 100 has a simple configuration and is easy to use.
`It is to be understood, however, that even though numer
`ous characteristics and advantages of the present invention
`have been set forth in the foregoing description, together
`with details of the structure and function of the ivention, the
`disclosure is illustrative only, and changes may be made in
`detail, especially in matters of shape, size, and arrangement
`of parts within the principles of the invention to the full
`extent indicated by the broad general meaning of the terms
`in which the appended claims are expressed.
`What is claimed is:
`1. An adapter for connecting a first electronic device to a
`second electronic device to exchange data and transmit
`power concurrently therebetween, comprising:
`a first connector being electrically connected to the first
`electronic device;
`a second connector being electrically connected to the
`second electronic device, the second connector includ
`ing a power converting circuit and a data transmitting
`circuit disposed therein; and
`a cable electrically connecting the first connector and the
`second connector;
`wherein power from the first electronic device passes
`through the first connector, the cable, and the power
`converting circuit in the second connector to the second
`electronic device, and the data is exchanged between
`the first and second electronic devices via the first
`connector, the cable, and the data transmitting circuit in
`the second connector.
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