Method and an apparatus for automatically tuning a receiver

Details Method and an apparatus for automatically tuning a receiver Method and an apparatus for automatically tuning a receiver

1996-06-19

1998-12-01

Vo, Nguyen

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551841, 4551851, H04B 116, H04B 118

Patent

active

058452001

ABSTRACT:
An automatic tuning apparatus for a receiver has a tuning unit, a ROM and a voltage converting unit. At the time of adjustment of the tuning unit, tuning voltages are supplied to the tuning unit from a CPU and stored in the ROM as reference tuning voltages at which tunings of the tuning unit become optimum at both ends of a receiving frequency band of the receiver. In a normal use, the reference tuning voltages stored in the ROM are supplied to the voltage converting unit through the CPU. The voltage converting unit converts the reference tuning voltages into a tuning voltage of a desired receiving channel according to a predetermined format, and supplies it to the tuning unit, thereby optimizing a tuning by the tuning unit.

REFERENCES:
patent: 4031491 (1977-06-01), Sakamoto
patent: 4317225 (1982-02-01), Henderson et al.
patent: 4370629 (1983-01-01), Martin
patent: 4780909 (1988-10-01), Sakashita et al.
patent: 5483688 (1996-01-01), English et al.

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