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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Ito; Yujiro
Address:
Kanagawa, JP
No. of patents:
43
Patents:












Patent Number Title Of Patent Date Issued
8165295 Data transmission method April 24, 2012
Encrypted auxiliary information data DYAE/DCAE including no inhibited codes is generated based on auxiliary information data DYA/DCA including no inhibited codes, in an auxiliary data packet having an auxiliary data flag ADF formed of a first combination of a plurality of inhibited codes
8024580 Transmitting apparatus, receiving apparatus, and data transmitting system September 20, 2011
Video data exploitation by alteration of data is prevented. An extractor 111 extracts valid video data in data 110 and predetermined data in the data. An inserter 114 inserts an arithmetic operation result of the predetermined data by an arithmetic operation unit 113 into the valid v
8000476 Data encryption/decryption method, and device August 16, 2011
A method of enciphering data which is applicable to cipher-transmission of digital information data, in which the HD-SDI signal DHS is subjected to enciphering process using common key data DEY which is common to encipherment and decipherment to produce enciphered HD-SDI signal DHSE,
7973852 Auto-focus apparatus, image capture apparatus, and auto-focus method July 5, 2011
Disclosed is an auto-focus apparatus including an evaluation value calculator periodically calculating evaluation values using high frequency components of image signals in a specific region of a subject image. The auto-focus apparatus further includes a control unit for outputting i
7965840 Data transmission and reception method and data transmission and reception device June 21, 2011
A method of transmitting and receiving data in which cipher-transmission of digital information data for which forbidden codes including timing identification codes are predetermined can be carried out with enciphered digital information data without containing undesirable forbidden code
7944479 Image-capture apparatus, camera control unit, video camera system, and method of transmitting wa May 17, 2011
An image-capture apparatus having an intercom connecting unit, capable of voice communication with an external camera control unit (CCU) is provided. The apparatus includes a control unit, a warning-sound signal generator, a receiving unit, a voice synthesizer and a transmitting unit.
7885407 Transmitting apparatus, receiving apparatus, and data transmission system February 8, 2011
Video data exploitation by alteration of data is prevented. An extractor 111 extracts valid video data in data 110 and predetermined data in the data. An inserter 114 inserts an arithmetic operation result of the predetermined data by an arithmetic operation unit 113 into the valid v
7756270 Encryption device and decryption device July 13, 2010
An apparatus for enciphering data by which enciphered digital information data with improved cipher strength are obtained by subjecting digital information data to enciphered process responding to random number data or pseudo-random number data produced in accordance with key data, and
7706532 Encryption/decryption device and method April 27, 2010
An encryption apparatus for encrypting input picture data with high secrecy and restoration against an error of encrypted data. An EXOR circuit calculates input picture data and a pseudo random sequence and obtains encrypted data. The obtained encrypted data are held in a first FF ci
7696835 Communication system, transmitting device, transmitting method, receiving device, and receiving April 13, 2010
A communication system includes a transmitting device configured to transmit data and a receiving device configured to receive the data. The transmitting device includes first and second transmission lines and a differential signal outputter configured to generate differential signals
7620311 Auto-focus apparatus. image-capture apparatus, and auto-focus method November 17, 2009
An auto-focus apparatus including an evaluation value calculator periodically calculating evaluation values using high frequency components of image signals in a specific region of a subject image, a distance measurement unit measuring a distance to a subject and output a distance me
7616252 Control apparatus, control method, computer program, and camera November 10, 2009
A control apparatus for controlling a driver driving an optical element of an image pickup device to adjust a focus position of the image pickup device in the capturing of an image of a subject, includes a relative angle variation calculating unit for calculating a relative angle var
7612823 Control apparatus, control method, computer program, and camera November 3, 2009
A control apparatus for controlling a driver driving an optical element of an image pickup device to adjust a focus position of the image pickup device in the capturing of an image of a subject, includes a local peak comparing unit for comparing a local peak of an assessment value, as a
7593053 Autofocus device method September 22, 2009
Autofocus device has a lens-driving unit, a focal-point-position-detecting unit, and a distance measurement sensor that measures a distance to a subject. The device also has a control unit for controlling the lens-driving unit to drive the lens, thereby meeting the detected position
7546030 Autofocus device and method June 9, 2009
Autofocus device has a lens-driving unit that drives a lens and a focal-point-position-detecting unit that detects a position of a focal point of the lens. The device also has a distance-measuring sensor that measures a distance to a subject and a control unit that performs a focusin
7536096 Autofocus device and method May 19, 2009
An autofocus device comprising a lens-driving unit, a focal-point-position-detecting unit that detects a position of a focal point of the lens, and a distance measurement sensor. The sensor measures a distance to a subject based on a reference field of view for distance measurement a
7536095 Autofocus device and method May 19, 2009
An autofocus device comprising a lens-driving unit, a focal-point-position-detecting unit that detects a position of a focal point of the lens, a distance measurement sensor that measures a distance to a subject, and a focus-evaluation-value-calculating unit that calculates a focus e
7519182 Encryption device and decryption device April 14, 2009
An apparatus for enciphering digital information data with improved cipher strength by subjecting digital information data to enciphered process responding to random number data or pseudo-random number data produced in accordance with key data. The apparatus comprises an enciphering port
7505678 Control apparatus, control method, and computer program March 17, 2009
A control apparatus for controlling a driver driving an optical element of an image pickup device to adjust a focus position of the image pickup device in the capturing of an image of a subject, includes a focus position control process startup unit for managing a startup of a focus
7453512 Auto-focus apparatus, focus adjusting method, image capturing apparatus and image capturing meth November 18, 2008
An auto-focus apparatus, a focus adjusting method, an image capturing apparatus and an image capturing method make it possible to perform accurate focus adjustment on a subject for which the focus should be adjusted. The auto-focus apparatus emits an irradiation wave from emitting me
7408585 Auto-focus apparatus, focus adjusting method, image capturing apparatus and image capturing meth August 5, 2008
An auto-focus apparatus, a focus adjusting method, an image capturing apparatus and an image capturing method make it possible to perform accurate focus adjustment on a subject for which the focus should be adjusted. The auto-focus apparatus emits an irradiation wave from emitting me
7292518 Apparatus for recording information and apparatus for recording and reproducing information November 6, 2007
An apparatus for recording information, which comprises a one-dimensional diode array (21) constituted with a plurality of laser diodes arranged in a line, a modulation control signal generator (23) for supplying the laser diodes constituting the one-dimensional diode array with modulati
7209425 Drive apparatus for tape-like optical recording medium April 24, 2007
An apparatus for driving a tape-shaped optical recording medium, which comprises a supply reel (41) for supplying an optical tape (40), a take-up reel (42) for taking-up the optical tape (40), a friction capstan (43) for driving the optical tape (40) to run to the take-up reel (42) f
7035136 Nonvolatile magnetic memory device and method of writing data into tunnel magnetoresistance devi April 25, 2006
A nonvolatile magnetic memory device having a nonvolatile magnetic memory array comprising write-in word line(s), bit lines and tunnel magnetoresistance devices, wherein when data is written into the tunnel magnetoresistance device, a current I(m).sub.RWL is passed through the m-th-p
6917386 Auto-focus apparatus, focus adjusting method, image capturing apparatus and image capturing meth July 12, 2005
An auto-focus apparatus, a focus adjusting method, an image capturing apparatus and an image capturing method make it possible to perform accurate focus adjustment on a subject for which the focus should be adjusted. The auto-focus apparatus emits an irradiation wave from emitting me
6658214 Optical space transmission apparatus and information transmission method December 2, 2003
The invention provides an optical space transmission apparatus which is applied for communication of information using a light beam which propagates in the space and can reduce the frequency of replacement of a light emitting element while the construction is simple. An information s
6618177 Light space-transmission device September 9, 2003
A light space-transmission device includes a light beam transmitting block for modulating a light beam with information signal and for transmitting the light beam, a first luminous-flux-diameter converting part for enlarging the luminous-flux-diameter of the light beam that is sent from
6362852 Focus control apparatus and method for use with a video camera or the like March 26, 2002
A focus control technique for use in a video camera or the like. An image of an object passes through a focus lens and an electric signal corresponding thereto is formed. High frequency components are extracted from the electric signals to generate estimation values indicative of foc
6275262 Focus control method and video camera apparatus August 14, 2001
A focus control circuit (34) which controls the focus of a video camera is provided with a horizontal-direction evaluation value generating circuit (62) which generates a plurality of evaluation values for the horizontal direction, a vertical-direction evaluation value generating circuit
6222587 Focus control method and video camera April 24, 2001
An autofocus apparatus of an imaging apparatus is one having an estimation-value calculating unit for obtaining a plurality of estimation values by using a plurality of areas and a plurality of filters for extracting a horizontal-direction frequency component in a specific image area
6175451 Optical axis correcting apparatus and method of correcting optical axis January 16, 2001
An optical axis correcting apparatus for correcting the optical axes of light beams from a communicating party in an optical space transmission system that transmits and receives the light beams to/from the communicating party, comprises, in order to further accurately correct an opt
6155690 Optical axis correction device December 5, 2000
In an optical axis correction device for correcting an optical axis within an optical spatial transmission device, a displacement of focal point can be prevented and a responding speed in rotation of the mirror can be made fast. As the incident light is reflected against the reflection s
6034727 Focus control method and video camera apparatus March 7, 2000
Focus control is provided by estimating an estimation value by extracting a high-frequency component of a video signal for each focus lens position. The correct focus lens position for focusing a target object is determined as that focus lens position where the estimation value for a plu
5506716 Method, circuit, and apparatus for mitigating effects of wavelength-dependent atmospheric transm April 9, 1996
A method, circuit, and apparatus for mitigating effects of wavelength-dependent atmospheric transmission characteristics on an atmospheric optical telecommunication system. The system comprises two atmospheric optical telecommunication units communicating with one another using light
5448391 Optical atmospheric link system September 5, 1995
An optical atmospheric link device which is adapted to quickly correct the incident position of a light beam with high follow-up accuracy. Incident position detection signals are generated by an optical beam incident position detector in correspondence to the incident position of a first
5367398 Optical atmospheric link system November 22, 1994
An optical atmospheric link system controls the angle an emitted light beam makes to a predetermined direction. A turning force is supplied to a rigid body housing an optical system without direct contact with the rigid body so that changes in the optical axis caused by a disturbance can
5329395 Optical atmospheric communication system July 12, 1994
In an optical atmospheric communication apparatus for transmitting desired information via an optical beam circulating in the atmosphere, the position of a transmitting object can be easily detected and thus the projecting position of an optical beam can be corrected, even in the case
5237166 Optical atmospheric link apparatus with light path correction August 17, 1993
An optical atmospheric link apparatus transmits information data by means of a light beam, an error signal is generated representative of a difference between a direction of a light beam projected from a optical lens means and a direction of a light beam received from a remote transm
5221985 Optical communication system June 22, 1993
An optical communication system which does not require a re-adjusting operation of an irradiating direction of a light beam and is improved in convenience in use. The optical communication system includes first and second terminals remotely located from each other for transmitting th
5210643 Wave combining apparatus for semiconductor lasers May 11, 1993
A wave combining apparatus for semiconductor lasers includes first and second dichroic mirrors for combining laser beams having the same direction of oscillation by waveform division, respectively, and a polarizing beam splitter prism for combining the first and second resultant beam
5065455 Optical atmospheric link system November 12, 1991
In an optical atmospheric link system for transmitting a light beam carrying an information signal between a transmitter and a receiver which is located apart from the transmitter, the transmitter includes a light source for generating the first light beam modulated with the information
4914272 Laser beam soldering apparatus and soldering method using the same April 3, 1990
A laser beam soldering apparatus is provided for soldering parts, such as, lead wires provided for an IC chip which are arranged closely to each other. The apparatus includes a plurality of laser beam irradiation units employing a semiconductor laser and a mounting dish for mounting the
4692721 Dielectric rotary coupler September 8, 1987
A dielectric rotary coupler for electromagnetic waves of the microwave frequency region structured of a substantially ring-shaped rotary member and a stationary member, each member being formed of a dielectric waveguide, or line, having a rectangular cross-section. The rotary line an










 
 
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