Character display apparatus for an intelligence television

Details Character display apparatus for an intelligence television Character display apparatus for an intelligence television

1996-10-15

1998-03-31

Hsia, Sherrie

Television

Basic receiver with additional function

For display of additional information

348564, 348569, 348706, H04N 5445

Patent

active

057344370

ABSTRACT:
A character display apparatus for an intelligence television is provided. The apparatus enables the television to simultaneously display a television broadcast signal and a communication signal corresponding to communication service information supplied via a value added communication network. For example, the apparatus may contain an information processing system, a signal switching device, display driver, and a microcomputer. The information processing system receives the communication service information from the value added communication network and outputs a corresponding screen information signal and a switching control signal. The signal switching device selects and switches between the screen information signal and the television broadcast signal based on the switching control signal. Then, the switching device outputs a corresponding selected signal. The display driver inputs the selected signal, superimposes an on screen display signal onto the selected signal to produce a superimposed signal, and outputs the superimposed signal to a display. The microcomputer outputs an actuating signal to instruct the information processing system to receive the communication service information from the value added communication network and outputs the on screen display signal to the display driver.

REFERENCES:
patent: 5173778 (1992-12-01), Sasaki
patent: 5210611 (1993-05-01), Yee

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