Broadcast receiver with automatic channel scanning

Details Broadcast receiver with automatic channel scanning Broadcast receiver with automatic channel scanning

2005-06-24

2009-10-13

Urban, Edward (Department: 2618)

Telecommunications

Wireless distribution system

Receiver for satellite broadcast

C455S003010, C455S003030, C455S179100, C455S181100, C725S063000, C725S068000, C725S072000, C342S074000, C342S075000, C342S076000

Reexamination Certificate

active

07603077

ABSTRACT:
A broadcast receiver includes a smart antenna, a tuner for extracting a signal of a predetermined channel from airwaves received by the smart antenna, a signal processing unit for processing the signal extracted by this tuner, and a control unit for controlling the smart antenna. The control unit detects a receivable direction by performing automatic scanning for each of the channels with respect to each of the directions of the smart antenna, and when the receivable direction is first detected during execution of automatic scanning for a certain channel, the automatic scanning is stopped at a point in time of the detection and transition to automatic scanning for the next channel is made.

REFERENCES:
patent: 4801940 (1989-01-01), Ma et al.
patent: 7312750 (2007-12-01), Mao et al.
patent: 56-17536 (1981-02-01), None
patent: 62-069733 (1987-03-01), None
patent: 62-69734 (1987-03-01), None
patent: 5-232205 (1993-09-01), None
patent: 11-298226 (1999-10-01), None
patent: 2001-160773 (2001-06-01), None
patent: 2004-173062 (2004-06-01), None
Translation of 11-298226.
Translation of 62-069733.
Patent Abstracts of Japan, Publication No. 2001-160773, Publication Date Jun. 12, 2001, 1 page.
Patent Abstracts of Japan, Publication No. 05-232205, Publication Date Sep. 7, 1993, 1 page.
Patent Abstracts of Japan, Publication No. 56-017536, Publication Date Feb. 19, 1981 , 1 page.
Japanese Office Action for Japanese patent application No. 2004-188672, mailed May 7, 2009, and English translation thereof, 4 pages.

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