Television receiver and decoder for closed-caption broadcast pro

Details Television receiver and decoder for closed-caption broadcast pro Television receiver and decoder for closed-caption broadcast pro

1993-03-02

1994-05-24

Groody, James J.

Television

Basic receiver with additional function

For display of additional information

348461, 348726, H04N 7087, H04N 550, H04N 708, H04N 5445

Patent

active

053153863

ABSTRACT:
A television receiver includes a closed-caption signal demodulator, an existence-of-closed-caption-signal discriminator located upstream of the demodulator, and a character memory for supplying a simple character, meaning that a closed-caption signal exists in an image signal, onto the screen of the television receiver. This simple character is supplied to the screen upon receipt of a discrimination signal, indicating that a closed-caption signal, exists in an image signal from the existence-of-closed-caption-signal discriminator. With this television receiver, the user can recognize, at a time prior to actual selection of closed-caption signal demodulation, whether or not a closed-caption signal exists, in an image signal.

REFERENCES:
patent: 4520392 (1985-05-01), Cox et al.
patent: 4633297 (1986-12-01), Skerlos et al.
patent: 5223930 (1993-06-01), Zato

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