Transmission circuit and manufacture method for the same

Details Transmission circuit and manufacture method for the same Transmission circuit and manufacture method for the same

2005-08-30

2005-08-30

Tung, Kee M. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Graphic display memory controller

C345S520000

Reexamination Certificate

active

06937243

ABSTRACT:
A transmission circuit has a dispatching circuit and a calculating circuit. The transmission circuit is between a processing circuit and a memory controller. The processor is connected to the dispatching circuit via a first signal line. The dispatching circuit is connected to the calculating circuit via a second signal line. The calculating circuit is connected to the memory controller via a third signal line. Besides, a fast signal line is provided for connecting the dispatching circuit and the memory controller. During operation, the processing circuit transmits a data stream to the dispatching circuit. The dispatching circuit checks whether a speed-up condition is satisfied. If the speed-up condition is not satisfied, the data stream follows a conventional path through the calculating circuit. If the speed-up condition is satisfied, the data stream is directly transmitted to the memory controller and such design increases the performance of the transmission circuit.

REFERENCES:
patent: 6052133 (2000-04-01), Kang
patent: 6292201 (2001-09-01), Chen et al.
patent: 6346946 (2002-02-01), Jeddeloh
patent: 6469703 (2002-10-01), Aleksic et al.
patent: 2002/0085013 (2002-07-01), Lippincott

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