Channel selection data memory device

Details Channel selection data memory device Channel selection data memory device

1980-04-07

1982-05-18

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

H04B 126

Patent

active

043308678

ABSTRACT:
A channel selection data memory device includes a memory which allows pulse duty data for channel selection corresponding to channels to be read from and written into the memory, a position designating device for designating a given address in the memory which produces an address signal and a write signal when it is operated, a mode selection device for selecting a write mode or a read mode, a tuning pulse generating device which produces a pulse with a duty corresponding to the channel selection pulse duty data read out from the memory in the read mode and sets channel selection pulse duty data with a pulse duty corresponding to the channel to be stored in the write mode, and a write signal supply circuit for supplying the write signal generated by the position designating device when it is operated to the memory.

REFERENCES:
patent: 3968440 (1976-07-01), Ehni
patent: 3990027 (1976-11-01), Kawashima
patent: 4130804 (1978-12-01), Mogi et al.

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