Taro Tadano

6448945, Sep 10, 2002

Oct 23, 2000

09/695123

Taro Tadano - San Diego CA
Pablo Espinosa - San Diego CA
Tadashi Fujise - San Diego CA

Sony Corporation - Tokyo
Sony Electronics Inc. - Park Ridge NJ

G09G 106

345 10, 345 13

An apparatus and method for providing image correction for a multifrequency display system. The apparatus comprises a circuit that generates a first signal based on a correction signal, a horizontal synchronization signal and a vertical synchronization signal. The apparatus also comprises a deflection circuit that generates a deflection signal based on the first signal and the vertical synchronization signal. The deflection circuit is operable within a range of frequencies. A video processing circuit coupled to the deflection circuit, and receives a video input signal and the deflection signal. The video processing circuit generates an output video signal based on the deflection signal and the video input signal.

20020033780, Mar 21, 2002

Sep 30, 1998

09/164093

MASANOBU KIMOTO - SAN DIEGO CA, US
LIBIAO JIANG - SAN DIEGO CA, US
SHIN FUJIMORI - SAN DIEGO CA, US
TARO TADANO - SAN DIEGO CA, US

G09G001/06

345/010000

The present invention is a method and apparatus for generating auto sizing and position data on a video monitor in response to a plurality of video signals. Basic parameters are determined based on the video signals; and derived parameters are calculated using a standardized formula from the basic parameters. The basic and derived parameters provide the auto sizing and positioning data.

62083201, Mar 27, 2001

May 15, 1998

9/079658

Taro Tadano - San Diego CA
Pablo Espinosa - San Diego CA
Tadashi Fujise - San Diego CA

Sony Corporation - Tokyo
Sony Electronics, Inc. - Park Ridge NJ

G09G1/06

345 10

An apparatus and method for providing image correction for a multi-frequency display system. The apparatus comprises a circuit that generates a first signal based on a correct on signal, a horizontal synchronization signal and a vertical synchronization signal. The apparatus also comprises a deflection circuit that generates a deflection signal based on the first signal and the vertical synchronization signal. The deflection circuit is operable within a range of frequencies. A video processing circuit coupled to the deflection circuit, and receives a video input signal and the deflection signal. The video processing circuit generates an output video signal based on the deflection signal and the video input signal.

62594834, Jul 10, 2001

Oct 1, 1998

9/165171

Libiao Jiang - San Diego CA
Masanobu Kimoto - San Diego CA
Taro Tadano - San Diego CA

Sony Corporation - Tokyo
Sony Electronics, Inc. - Parkridge NJ

H04N 504
H04N 322
H04N 3227

348511

Determining a phase shift compensation for automatically centering an image by measuring a start time delay between a horizontal scan line signal and an active video signal, measuring an end time delay between the active video signal and the horizontal scan line signal, and computing a phase shift for a horizontal flyback signal using the start time delay and the end time delay. A system to center an image on a monitor includes a video processing circuit and a rasterizer. The video processing circuit receives a video signal and measures a start time delay and an end time delay between a horizontal scan line signal and an active video signal. The circuit generates a phase shift used to generate a horizontal flyback signal using the measured start time delay and the end time delay. The rasterizer receives the output of the video processing circuit to control a scanning element.

62013580, Mar 13, 2001

Aug 28, 1998

9/143541

Taro Tadano - San Diego CA

Sony Corporation - Tokyo
Sony Electronics, Inc. - Park Ridge NJ

G09G 104

315370

A waveform correction system using inductance-controllable inductors suitable for use in the horizontal sweep circuits of televisions and computer displays includes a linearity correction coil (18) that is connected in parallel to the horizontal linearity coil (12) of the sweep circuit and used to selectively alter the inductance of the horizontal linearity coil (12) to correct for non-linearities in the horizontal sweep waveform. The linearity correction coil (18) has an input coil (20) cross-coupled to an output coil (22) through a core (24) with the output coil (22) connected in parallel with the horizontal linearity coil (12). The input coil (20) is connected between a control node (26) and circuit ground. A controller (28), in the form of a programmed microprocessor, PLA, or similar device, includes a memory (32) into which digital correction factors are stored as a function of the forward left-to-right scan position of the electron beam as it sweeps from the left side to the right side of the display screen. As the electron beam sweeps left to right, a control current through the input coil (20) of the linearity correction coil (18) effects waveform correction.

60940182, Jul 25, 2000

Oct 1, 1998

9/165170

Shin Fujimori - San Diego CA
Taro Tadano - San Diego CA
Masanobu Kimoto - San Diego CA

Sony Corporation - Tokyo
Sony Electronics, Inc. - Park Ridge NJ

G09G 0104

315370

In a display monitor, a horizontal synchronization signal having a horizontal scanning frequency is received by a first circuit. A vertical synchronization signal having a vertical scanning frequency is received by a second circuit. A moire correction signal that is proportional to a horizontal resolution of the displayed image is generated by dividing the horizontal scanning frequency by the vertical scanning frequency.

58925449, Apr 6, 1999

Sep 15, 1997

8/929991

Hiroyuki Ikegami - San Diego CA
Taro Tadano - San Diego CA

Sony Electronics, Inc. - Park Ridge NJ
Sony Corporation - Tokyo

H04N 568

348380

The present invention relates to a beam current control system for detecting and controlling a beam current generated by a cathode ray tube. The system comprises a video processing circuit that receives a first signal, and which generates a second signal that includes a video signal and a synchronization signal, which is provided to the cathode ray tube. The cathode ray tube generates a beam current corresponding to the second signal, where the beam current has a video signal portion and a synchronization signal portion. A storage element coupled between the video processing circuit and the cathode ray tube clamps the second signal at a first predetermined level, and stores an electrical charge corresponding to the video signal portion of the beam current during a first time interval. A first circuit coupled at one end to the storage element, and at the other end, to the video processing circuit, is operable upon receipt of a control signal from the video processing circuit, corresponding to the synchronization signal during the first time interval, to facilitate discharge of the electrical charge into the first circuit. The first circuit generates a third signal representative of a magnitude of the electrical charge.

61372439, Oct 24, 2000

Sep 30, 1998

9/164213

Shin Fujimori - San Diego CA
Taro Tadano - San Diego CA
Masanobu Kimoto - San Diego CA

Sony Corporation - Tokyo
Sony Electronics, Inc. - Park Ridge NJ

G09G 104
H01J 2956
H01J 2970

315370

The present invention is a method and apparatus for selecting a capacitor value corresponding to a horizontal frequency in a video monitor. The technique determines the horizontal frequency and creates a limit on a default capacitor value which is obtained from the determined horizontal frequency. An updated value is compared with the limit to generate a comparison result. The capacitor value between the default capacitor value and the updated value is selected based on the comparison result.