Electronic device

Details Electronic device Electronic device

1993-12-23

2000-01-11

Liang, Regina

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345211, G09G 500

Patent

active

060141328

ABSTRACT:
An electronic device for entering information comprises a CPU for controlling the entire electronic device, information entry means for obtaining information at a predetermined time interval, and control means for controlling the CPU and the information input means such that, in a first mode in which no information is entered, the predetermined time interval is maintained in preparation for sudden entry of information and an operating clock frequency of the CPU is kept at a low frequency, and in a second mode in which information is entered, the predetermined time interval is maintained and the operating clock frequency of the CPU is kept at a high frequency.

REFERENCES:
patent: 4317181 (1982-02-01), Teja et al.
patent: 4649373 (1987-03-01), Bland et al.
patent: 4814760 (1989-03-01), Johnston et al.
patent: 5059961 (1991-10-01), Cheng
"System Power Savings By Automatic Sleep Mode", IBM Technical Disclosure Bulletin, vol. 29, No. 9, Feb. 1987, pp. 4122-4124.
"Cursor Controller/Graphics Pad", IBM Technical Disclosure Bulletin, vol. 28, No. 9, Feb. 1986, pp. 4093-4097.

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