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`July 8, 2014
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`Certification
`
`Park IP Translations
`
`
`
`This is to certify that the attached translation is, to the best of my knowledge and
`belief, a true and accurate translation from Japanese into English of: Japanese
`Unexamined Patent Application Publication Number, Sho 62-16073.
`
`
`
`_______________________________________
`
`Hanna Kang
`
`Project Manager
`
`Project Number: OSLI_1406_017
`
`
`
`
`15 W. 37th Street 8th Floor
`New York, NY 10018
`212.581.8870
`ParkIP.com
`
`VALEO EX. 1008_001
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`

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`(19) Japan Patent Office (JP)
`(12) Patent Publication (B2)
`(11) Patent Application Publication
`Sho 62-16073
`JPO file number (24)
`(44)
`Published April
`10, 1987
`
`Identification
`Symbol
`
`(51) Int. Cl.4
`H 04 N 7/18
`B 60 R 1/00
`H 04 N 7/18
`
`
`
`
`(54) Title of the Invention
`Road-surface View Display Device
`
`(21) Patent Application
`56-208833
`(72) Inventor
`
`Sho
`
`(71) Applicant
`
`(74) Representative
`Examiner Yoshimatsu KAKUTA
`(66) References
`
`of
`
`J-7245-5C
`7443-3D
`V-7245-5C
`
`No.
`Inventions
`(Total 3 page)
`(65)
`Published
`Sho 58-110334
`(43) June 30,
`1983
`
`(22) Application December 23, 1981
`
`Naotaka IDE
`
`Hinodai,
`
`patent
`
`Eikichi MATSUTANI 3-1-1 Hinodai, Hino City In Hino
`Motors Ltd.
`Hino Motors Ltd. 3-1-1
`Hino City
`Attorney
`
`unexamined
`Japanese
`application publication
`Sho 49-95333 (JP, A)
`Unexamined
`Utility
`Model
`Application
`Publication Sho 56-42443 (JP, U)
`
`
`(57) Scope of Claims for Patent
`1. A road-surface view display
`device characterized by being
`equipped with a plurality of
`television cameras mounted onto
`an automobile, that capture the
`road surface in a vicinity of
`the automobile; a circuit that
`includes a processing device
`connected to an output of the
`plurality of television cameras,
`that
`synthesizes
`into
`one
`continuous
`video
`signal
`by
`converting video output from the
`television
`cameras
`into
`a
`predetermined
`density,
`and
`converting this video signal
`into coordinates centering on
`the automobile; and a cathode
`ray
`tube
`disposed
`at
`the
`driver’s seat of the automobile,
`for displaying the video signal
`converted to the coordinate.
`Detailed
`Description
`of
`the
`Invention
`[Technical Field to Which the
`Invention Belongs]
`
`
`
`1
`
`The present invention relates to
`road-surface
`view
`display
`devices, that display on a
`cathode ray tube at a driver’s
`seat a road surface surrounding
`an automobile.
`[Description of the Prior Art]
`Conventionally,
`a
`rear-view
`mirror is widely known as means
`for a driver to detect an image
`surrounding an automobile. While
`manufacturing a rear-view mirror
`is simple, and mirrors are easy
`to handle, a blind area exists
`that cannot be reflected. Also,
`because the image is distorted,
`there is a disadvantage in that
`it is difficult for the driver
`to gain a sense of distance.
`Also, a device is well-known for
`a driver to confirm a rear of
`the
`vehicle
`by
`mounting
`a
`television camera at an upper
`rear portion of the vehicle, and
`a cathode ray tube at the
`driver’s
`seat.
`This
`device
`optimally obtains an image, but
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`it has a same disadvantage as a
`rear-view mirror in that a blind
`area exists where it is not
`possible to view.
`[Object of the Invention]
`To
`improve
`the
`disadvantage
`described above, an object of
`the present invention is to
`provide
`a
`road-surface
`view
`display device that eliminates a
`blind spot of an automobile,
`seen from a driver’s seat, and
`that makes it possible correctly
`to know a distance between
`obstacles in the vicinity of the
`vehicle and another vehicle.
`[Overview of the Invention]
`is
`The
`present
`invention
`characterized by being equipped
`with a plurality of television
`cameras
`mounted
`onto
`an
`automobile, that capture the
`road surface in a vicinity of
`the automobile; a circuit that
`includes a processing device
`connected to an output of the
`plurality of television cameras,
`that
`synthesizes
`into
`one
`continuous
`video
`signal
`by
`converting video output from the
`television
`cameras
`into
`a
`predetermined
`density,
`and
`converting this video signal
`into coordinates centering on
`the automobile; and a cathode
`ray
`tube
`disposed
`at
`the
`driver’s seat of the automobile,
`for displaying the video signal
`converted to the coordinate.
`[Description Using a Working
`Example]
`A working example will now be
`described
`in
`detail
`with
`reference to the drawings.
`Fig. 1 is a side view of an
`automobile
`equipped
`with
`a
`working example of the present
`invention;
`Fig.
`2
`is
`an
`electrical circuit diagram of
`the device. In both drawings, 1
`- 3 denote television camera.
`The television camera 1 is
`mounted to a roof of the
`automobile, at a front end
`thereof; the television camera 2
`is mounted to the roof of the
`automobile, at a center portion
`
`
`
`2
`
`television
`the
`and
`thereof;
`camera 3 is mounted to the roof
`of the automobile, at a rear end
`thereof. Each camera is mounted
`to display a road surface in the
`vicinity
`of
`the
`automobile.
`These television cameras 1 – 3
`are embedded with a wide-angle
`lens to be able to obtain a wide
`view.
`Also, each of the video outputs
`of the television cameras 1 – 3
`is connected to each input of a
`video amplifier 5 – 7 that
`amplifies these video signals.
`Each output from these video
`amplifiers 5 – 7 is connected to
`each input of limiters 9 – 11
`that
`classify
`the
`amplified
`video signals to a predetermined
`density level. Each output from
`these limiters 9 - 11 is
`connected to each input of AD
`converters
`13
`–
`15,
`and
`connected to a CPU 18 via an
`input interface 17. A fixed
`memory device (referred to as
`ROM below) 19 that stores a
`coordinate
`centered
`on
`the
`automobile, is connected to the
`CPU 18. The CPU 18 synthesizes
`the video signals from the three
`television cameras 1 – 3 into
`one continuous video signal so
`that the status in the vicinity
`of the automobile is seen from
`directly above the automobile,
`and corrects so that the video
`signals
`are
`at
`the
`same
`magnification,
`regardless
`of
`whether they are close or far
`away from the vehicle, and
`converts the coordinates into a
`coordinate plane stored in the
`ROM 19.
`CPU coordinate conversion will
`now be described.
`Two operations are included in
`the
`coordinate
`conversion
`operation. In other words, this
`is an operation to convert
`coordinates of the video signal
`captured with a wide-angle lens
`into plane coordinates to have
`the
`same
`magnification
`regardless of being near or far,
`and
`a
`coordinate-synthesis
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`operation to synthesize three
`video signals into one video.
`The operation to convert into
`plane coordinates of a first
`same magnification converts the
`coordinate
`of
`the
`video
`(perspective) captured by the
`lens. This operation converts a
`perspective
`view
`into
`coordinates in a plan view.
`Also, the screen image obtained
`by a wide-angle lens is not at a
`perspective
`with
`the
`same
`magnification. For that reason,
`the
`distorted
`sense
`of
`perspective is corrected.
`the
`Next,
`when
`synthesizing
`video signals that have three
`reference points, firstly, one
`common reference point in a
`coordinate system for two videos
`is set. Using that reference
`point,
`two
`videos
`are
`synthesized
`into
`one
`video.
`Then, that synthesized video
`signal is synthesized with one
`more video.
`Also, in this synthesizing of
`the pictures, a portion of the
`blind area exists, but it does
`not appear as the video, so it
`is possible to represent that
`portion as a blind area in a
`special picture. Also, it is
`acceptable to reverse the order
`of coordinate conversion, and to
`convert and to correct the
`coordinates as soon as the
`videos are synthesized.
`that
`Also,
`image
`processing
`implements
`the
`coordinate
`conversion
`and
`synthesis
`is
`disclosed
`in
`the
`following
`literature.
`Literature: Television Picture
`Engineering Handbook
`Ohmsha
`December 30, 1980
`Pages 464 to 470
`The CPU 18 is connected to an
`input of a DA converter 22 via
`an output interface 21. Output
`from the DA converter 22 is
`connected to the cathode ray
`tube 25 via an image amplifier
`23. The cathode ray tube 25 is
`incorporated in a same position
`as instruments of the driver’s
`
`
`
`3
`
`seat and is disposed so that the
`driver can easily view it even
`while driving.
`With such a constitution, by
`activating the device of this
`working
`example,
`the
`road
`surface
`in
`the
`vicinity
`centering on the automobile is
`displayed making it easy for the
`driver
`to
`confirm
`oncoming
`traffic and passing vehicles, as
`shown in the cathode ray tube 25
`depicted in Fig. 3.
`above
`Also,
`the
`example
`describes using three television
`cameras. However, there is no
`particular limit to the number
`of cameras.
`is
`gyro-compass
`Also,
`a
`installed in the vehicle to
`standardize
`a
`predetermined
`bearing of the vehicle. It is
`possible to have a constitution
`that changes to the same bearing
`as the vehicle, centering on the
`picture in the cathode ray tube,
`when the automobile changes its
`bearing.
`[Effect of the Invention]
`As described above, pursuant to
`the
`present
`invention,
`a
`plurality of television cameras
`is installed at a top portion of
`an automobile. By displaying the
`road surface in the vicinity on
`the cathode ray tube disposed at
`the
`driver’s
`seat,
`it
`is
`possible for the driver easily
`to check on an undistorted video
`a presence of a passing vehicles
`when starting, a distance from
`an obstacle when backing, and a
`tendency
`of
`another
`vehicle
`while traveling, thereby attain
`the
`excellent
`effect
`of
`improving driving safety.
`Brief
`Description
`of
`Drawings
`Fig. 1 is a side view of an
`automobile
`equipped
`with
`a
`working example of a device
`pursuant
`to
`the
`present
`invention;
`Fig.
`2
`is
`an
`electrical circuit diagram of
`the device; and Fig. 3 is a view
`of a display sample of a cathode
`ray tube in the device.
`
`the
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`VALEO EX. 1008_004
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`1 – 3 • • • Television camera
`5 – 7 • • • Video amplifier
`9 – 11 • • • Limiter
`13 – 15 • • • AD converter
`17 • • • Input interface
`18 • • • CPU
`
`
`
`
`
`19 • • • Fixed memory device
`(ROM)
`21 • • • Output interface
`22 • • • DA converter
`23 • • • Video amplifier
`25 • • • Cathode ray tube
`
`
`
`4
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`Fig. 1
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`Fig. 2
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`Camera
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`Camera
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`Camera
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`5
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`VALEO EX. 1008 007
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`VALEO EX. 1008_007
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