| US 7,486,308 B1 | ||
| Image switching device and image outputting devices | ||
| Toshiyuki Kori, Osaka (Japan); Haruo Isaka, Kyoto (Japan); and Kenichi Honjo, Osaka (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Appl. No. 9/744,395 PCT Filed May 23, 2000, PCT No. PCT/JP00/03271 § 371(c)(1), (2), (4) Date Apr. 11, 2001, PCT Pub. No. WO00/72597, PCT Pub. Date Nov. 30, 2000. |
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| Claims priority of application No. 11-142845 (JP), filed on May 24, 1999; and application No. 11-292060 (JP), filed on Oct. 14, 1999. | ||
| Int. Cl. H04N 7/18 (2006.01); H04N 5/95 (2006.01) | ||
| U.S. Cl. 348—143 [348/159; 386/98] | 7 Claims |
| 1. An image switching device for switching a plurality of image outputting devices connected through a digital interface,
and delivering image signals, comprising:
image switching control means for sending image switching control data for selecting and controlling a desired device out
of the plurality of image outputting devices to the selected image outputting device;
image signal selecting means for selecting and receiving the image signal transmitted from the selected image outputting device
according to the image switching control data; and
synchronous signal transmitting means for transmitting a synchronizing timing signal for synchronizing the image outputting
devices, wherein
the digital interface conforms to the IEEE 1394 standard, and the synchronizing timing signal and image signal to be transmitted
are transmitted by isochronous communication packet.
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