Title:
PULSE COUNT TYPE COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/1991/009362
Kind Code:
A1
Abstract:
A pulse count type communication system in which the RS-232C interface is unnecessitated unlike before and the multi-terminal processing capability of a host computer can be utilized effectively as a whole since coordinate data can be transferred to the host computer via a bus-mouse interface. In the communication system, a transmission part has two pulse circuits each of which outputs a two-phase pulse train including the pulse edges whose number corresponds to an integer represented by a binary-bit train constituting data to be transferred. This transmission part transmits e.g. the coordinate data inputted through a digitizer. A reception part has two counters each of which counts the pulse edges included in the two-phase pulse train, and a reading circuit which defines the number of the counted pulse edges. The counters and the reading circuit are made up of bus-mouse interfaces.
Inventors:
MURAKAMI AZUMA (JP)
MORII HIROKI (JP)
MORII HIROKI (JP)
Application Number:
PCT/JP1990/001613
Publication Date:
June 27, 1991
Filing Date:
December 11, 1990
Export Citation:
Assignee:
KABUSHIKIKAISHA WACOM (JP)
International Classes:
G06F3/033; G06F3/038; (IPC1-7): G06F3/033; G06K11/18
Foreign References:
| JPS6134622A | 1986-02-18 | |||
| JPS60153538A | 1985-08-13 |
Other References:
None
See also references of EP 0457922A4
See also references of EP 0457922A4
Attorney, Agent or Firm:
Suzuki, Harutoshi (21-20 Takanawa 4-chom, Minato-ku Tokyo 108, JP)
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