US 7,322,039 B2 | ||
Digital and analog broadcasting receiver | ||
Akinori Tsubouchi, Hyogo (Japan); and Takahiro Miyakoshi, Osaka (Japan) | ||
Assigned to Sanyo Electric Co., Ltd., Osaka (Japan) | ||
Filed on Nov. 28, 2001, as Appl. No. 9/994,686. | ||
Claims priority of application No. 2000-366510 (JP), filed on Dec. 01, 2000. | ||
Prior Publication US 2002/0067437 A1, Jun. 06, 2002 | ||
Int. Cl. H04N 7/16 (2006.01) |
U.S. Cl. 725—151 [348/731; 348/732; 455/168.1; 455/186.1] | 6 Claims |
1. In a digital and analog broadcasting receiver comprising both a digital tuner for receiving digital broadcasting and an
analog tuner for receiving analog broadcasting, a digital and analog broadcasting receiver comprising:
a first CPU; and
a second CPU,
the first CPU being in charge of existent station channel search processing on the side of the digital tuner,
the second CPU being in charge of existent station channel search processing on the side of the analog tuner,
a frequency to be received by each tuner being changed independently by each CPU,
channel searches by the first CPU and the second CPU being concurrently conducted;
wherein
when the existent station channel search is started,
the first CPU instructs the second CPU to start the existent station channel search and performs the existent station channel
search processing on the side of the digital tuner, and
the second CPU performs the existent station channel search processing on the side of the analog tuner upon receipt of the
instruction to start the search from the first CPU.
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