Image switching apparatus and method of controlling image...

Details Image switching apparatus and method of controlling image... Image switching apparatus and method of controlling image...

2005-12-15

2009-06-23

Hsia, Sherrie (Department: 2622)

Television

Image signal processing circuitry specific to television

Switching

C348S578000, C348S584000

Reexamination Certificate

active

07551235

ABSTRACT:
An image processing unit of an image switching apparatus includes main circuit blocks (5a), (5b) and (6) and sub circuit blocks (5d), (5e) and (7). An operation unit in the image switching apparatus includes a unit for designating one of or both of the main circuit blocks and the sub circuit blocks. When the main circuit block is designated, the operation unit transmits a signal to designate the operation of the main circuit block. When the sub circuit block is designated, the operation unit transmits a signal to designate the operation of the sub circuit block. When both of the main circuit block and the sub circuit block are designated, the operation unit transmits a signal to designate operations of the main circuit block and the sub circuit block. The image switching apparatus can be constructed by a few circuits and such circuits can be efficiently used without waste in response to the change of purposes.

REFERENCES:
patent: 5047857 (1991-09-01), Duffield et al.
patent: 5227863 (1993-07-01), Bilbrey et al.
patent: 7420622 (2008-09-01), Higashi et al.
patent: 0 336 712 (1989-10-01), None
patent: 1 761 044 (2007-03-01), None
patent: 2004-153486 (2004-05-01), None
Yagi N et al: “A Programmable Real-Time Video Signal-Processing System”, SMPTE Journal, SMPTE Inc. Scarsdale, N.Y., US, vol. 100, No. 11, Nov. 1, 1991, pp. 860-868, XP000213667.

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