Identical broadcast receiver

Abstract

Abstract PURPOSE:To maintain the best reception state automatically by selecting and outputting a broadcast of a signal having the highest level when the same broadcast is delivered at different frequencies. CONSTITUTION:Two tuners 3 and 4 generate two detection outputs S1 and S2. The S1 and S2 are passed through sample holding circuits 9 and 10 and then compared mutually after A/D conversion. When those detection outputs are different, a tuning frequency is varied and the same comparison is performed. When the detection outputs are identical, the greater detection output is selected by a switch 12 and outputted. For example, when an NHK (Japan Broadcasting Corporation) broadcast on a national network is received over movement, the broadcast is received automatically in respective service areas changing according to the run.

Inventors

• 👤 Kazuo Watanabe
• 👤 和夫 渡辺

Bibliographic Details