TV receiver having a RF signal splitter that supplies more signa

Details TV receiver having a RF signal splitter that supplies more signa TV receiver having a RF signal splitter that supplies more signa

1989-05-30

1990-10-30

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

3581911, H04N 545

Patent

active

049672754

ABSTRACT:
TV receiver including a RF signal splitter coupled to an aerial input and having first and second RF signal terminals to which first and second tuning circuits for tuning to first and second TV programs, respectively, are connected, the first and second tuning circuits being connected via first and second TV-IF signal processing circuits to a device for displaying the picture of the second TV program in the picture of the first TV program, which RF signal splitter supplies more signal energy to the first tuning circuit than to the second. To provide the possibility of a simple and inexpensive realization of the TV receiver while maintaining at least an acceptable display quality of the picture-in-picture signal, the second tuning circuit is chosen to be a circuit whose dynamic range, within which a substantially linear signal processing is possible, is smaller than that of the first tuning circuit.

REFERENCES:
patent: 4249211 (1981-02-01), Baba et al.
patent: 4623915 (1986-11-01), Bolger
patent: 4725888 (1988-02-01), Hakamada
patent: 4729027 (1988-03-01), Hakamada et al.
patent: 4746983 (1988-05-01), Hakamada
patent: 4761688 (1988-08-01), Hakamada et al.
patent: 4774582 (1988-09-01), Hakamada et al.
patent: 4777531 (1988-10-01), Hakamada et al.
patent: 4845564 (1989-07-01), Hakamada et al.
CATV Splitter, Model CA-2133, p. 176, Forham Radio Catalog 1983.

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