Sony Corporation

Sumio Baba

Toshiyuki Ogura

Kunio Hakamada

Mariko Okamoto

Kazuhiro Tsuchiya

Noriyuki Hitachiya

Yoshiyuki Idenawa

Hirokatsu Kubota

A television receiver includes a broadcasting wave receiving section, image displaying and sound producing sections which operatively and respectively treat video and audio signals issued from the broadcasting wave receiving section, and a control section which controls the broadcasting wave receiving section, the image displaying section and the sound producing section. There are also provided a TV-game terminal for receiving video and audio signals issued from a TV-game playing device; a game mode selection switch for producing a given information signal when reception of the video and audio signals into the image displaying and sound producing sections is required; a power terminal for feeding the TV-game playing device with a direct current electric power thereby to energize the playing device; and an input mode switching circuit which, upon receiving the given information signal from the game mode selection switch, switches to a game mode in which the signals fed to the TV-game terminal are operatively input into the image displaying and sound producing sections.

Television receiver

A device having a display device employing a cathode-ray tube and an electron beam includes an on-screen display memory for storing data used to display white on an entire screen of the cathode-ray tube, a circuit for supplying signals used to display white on the entire screen of the said display device employing the electron beam based on the data stored in the on-screen display memory, and a controller for outputting a signal indicative of a command for displaying white on the entire screen from the on-screen display memory in accordance with a de-energizing operation. The signals used to display white on an entire screen of the cathode-ray tube are output to the display device employing the electron beam after the device having the display device is de-energized. Displayed contents are erased by removing a residual high voltage in the display device employing the electron beam.

Display device using electron beam and method of erasing display screen

In order to display a video signal having an aspect ratio of 4 to 3 on a video display screen having a 16 to 9 aspect ratio a nonlinear vertical deflection signal is used to compress the video image along the top and bottom edges of the 16 to 9 aspect ratio screen. The video image is compressed only along the top and bottom edges of the screen because it has been found that motion of the point of view of the viewer relative to the displayed image is generally horizontal but is infrequently vertical. One approach to providing the non-linear vertical deflection waveform is to detect whether the input video signal for display on a 16 to 9 aspect ratio screen is a 4 to 3 aspect ratio signal and, if so, to read out special, non-linear data from a memory. This special waveform data is used to generate the non-linear vertical deflection waveform. If the input video signal is detected to be a 16 to 9 aspect ratio signal, standard data is read out from the memory to be used to generate the appropriate linear vertical deflection waveform.

Television display apparatus with adjustable vertical deflection waveform

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Chiba, Japan

Sumio Baba