Receiving circuit of transmitter and receiver

Abstract

Abstract PURPOSE:To save the electric power, by supplying the power only to a circuit having slow responsiveness of output in the entire range of a certain section and then supplying the power to the circuits excepting the above-mentioned ones in a short range of a certain section. CONSTITUTION:A power supply VA is applied to a demodulating circuit 6 containing a limiting amplifier 17 having the slow responsiveness of output through a transistor TR1 which is controlled by a long pulse. A power supply control circuit 21 delivers both a long pulse and a short pulse with a certain cycle. Then the VA is supplied to the circuit 6 in a period during which the TR1 is turned on in a section corresponding to a long pulse. At the same time, the TR1 is turned on for a certain period and in response to the short pulse in a short section at the latter part of a section which is prescribed by the long pulse. In this duration, a power supply VB is applied to the circuits other than the circuit 6.

Inventors

• 👤 Kuniharu Tatezuki
• 👤 邦治 竪月
• 👤 Hironobu Inoue
• 👤 博允 井上
• 👤 Toshio Abiko
• 👤 安彦　利夫
• 👤 Masayuki Matsuo
• 👤 昌行 松尾

Bibliographic Details