Application specific integrated circuit (ASIC) of the...

Details Application specific integrated circuit (ASIC) of the... Application specific integrated circuit (ASIC) of the...

2005-08-09

2005-08-09

Awad, Amr A. (Department: 2675)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018070

Reexamination Certificate

active

06927762

ABSTRACT:
The electromagnetic-induction system of the present invention comprises: a central processing unit (CPU); an application specific integrated circuit coupled with the central processing unit; a plurality of analogy switches that are coupled with the central processing unit and the application specific integrated circuit, individually; an antenna loop coupled with a plurality of analogy switches. The application specific integrated circuit further comprises: a digital filter that can reduce bandwidth error; a programmable gain amplifier that has the gain range with over eight-level; a latch device that can access the data at steady state; a multiplier and a divider that consist of hardware to increase the report rate; a programmable frequency generator can output the signal with the stable frequency.

REFERENCES:
patent: 5693914 (1997-12-01), Ogawa
patent: 5986646 (1999-11-01), Chen et al.
patent: 6005555 (1999-12-01), Katsurahira et al.
patent: 6131046 (2000-10-01), Sano et al.

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