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US 3,943,280 AGranted
Television receiver with zoom storage tube frame grabber with electronic inset into continuing received video stream
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTakeji Kimura, Iwajiro Sembokuya, Hideo Hozumi, Tomio Oyama
Life of this patent
Estimating the term…
Abstract
In a television receiver, a video signal for a single frame at any moment is stored in a storage tube. The stored video signal is displayed, if necessary, as a still picture on a part of the picture tube screen together with the ordinary broadcasted television picture in motion.
Claims5
A television receiver comprising means for receiving a television signal;
- a picture tube for displaying the received television signal as the corresponding television picture on the screen of said picture tube;
- means for extracting a part of a video signal for a single frame from the received television signal at any desired moment;
- a storage tube having a target for storing the extracted video signal;
- means for repeatedly reading the stored video signal out of the storage tube by applying horizontal and vertical sawtooth deflection signals to said storage tube whose periods are not equal to the respective horizontal and vertical sync repetition rates of the received television signal, amplitude controlling means for controlling the amplitude of the sawtooth generated by said means for repeatedly reading, and level controlling means for controlling the DC level of said sawtooth thereby effecting the zooming of the picture stored in the storage tube;
- and means for eliminating a part of the television picture on the screen and for displaying the video signal read from the storage tube as a still picture on the vacant part of the screen.
2 more elements
Dependencies are inferred from the claim text.