JPS55103629A - Information input device - Google Patents
Information input deviceInfo
- Publication number
- JPS55103629A JPS55103629A JP1164379A JP1164379A JPS55103629A JP S55103629 A JPS55103629 A JP S55103629A JP 1164379 A JP1164379 A JP 1164379A JP 1164379 A JP1164379 A JP 1164379A JP S55103629 A JPS55103629 A JP S55103629A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- read strobe
- external device
- signal
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Bus Control (AREA)
Abstract
PURPOSE: To simplify constitution by constituting a CPU unit as a micro processor into one body together with a tablet.
CONSTITUTION: After decision of address signal 102 to designate external device 110, CPU unit 100 generates read strobe 103, and designated external device 110 connects the output to data bus 101 to transmit data when receiving this read strobe 103. Since it takes a long time from the output of read strobe 103 from CPU 100 to arrival at CPU 100 of decided data from external device 110, CPU 100 reads data on the bus 101 after a little while from the output of read strobe 103. Buffer gate signal 133 causes pen signal 161 to be outputted to data bus 101 through buffer circuit 140. X and Y scanning pulses are applied to X signal electrode Xi and Y signal electrode Yi, which constitute tablet 120, according to address designation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1164379A JPS55103629A (en) | 1979-02-03 | 1979-02-03 | Information input device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1164379A JPS55103629A (en) | 1979-02-03 | 1979-02-03 | Information input device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55103629A true JPS55103629A (en) | 1980-08-08 |
JPS6311692B2 JPS6311692B2 (en) | 1988-03-15 |
Family
ID=11783625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1164379A Granted JPS55103629A (en) | 1979-02-03 | 1979-02-03 | Information input device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103629A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4974847A (en) * | 1972-11-20 | 1974-07-19 | ||
JPS50104837A (en) * | 1974-01-22 | 1975-08-19 | ||
JPS5366123A (en) * | 1976-11-25 | 1978-06-13 | Nec Corp | Keyboard |
-
1979
- 1979-02-03 JP JP1164379A patent/JPS55103629A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4974847A (en) * | 1972-11-20 | 1974-07-19 | ||
JPS50104837A (en) * | 1974-01-22 | 1975-08-19 | ||
JPS5366123A (en) * | 1976-11-25 | 1978-06-13 | Nec Corp | Keyboard |
Also Published As
Publication number | Publication date |
---|---|
JPS6311692B2 (en) | 1988-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5345120A (en) | Video special effect device | |
JPS5690341A (en) | Buffer switching system | |
JPS55103629A (en) | Information input device | |
JPS55134442A (en) | Data transfer unit | |
JPS5261444A (en) | Data bus system of information processing unit | |
JPS5415620A (en) | Buffer memory unit | |
JPS5523550A (en) | Interface system | |
JPS5419628A (en) | Duplex micro computer system | |
JPS6441951A (en) | Dma controller | |
JPS53101234A (en) | Address converting device | |
SU739515A1 (en) | Device for data input to digital computer | |
JPS55142476A (en) | Address conversion system for information processing system | |
SU1149400A2 (en) | Scaling device with check | |
JPS5478635A (en) | Data transfer control circuit | |
JPS5368138A (en) | Interrupt priority determining circuit | |
JPS5294040A (en) | Data processing unit | |
JPS5597628A (en) | Information processor | |
JPS5547547A (en) | Control device | |
JPS5730177A (en) | Address converter | |
JPS55140972A (en) | Coordinate value checking circuit | |
JPS5674761A (en) | Information processor | |
JPS5576422A (en) | Terminal unit | |
JPS56168251A (en) | Data transfer buffer system | |
JPS5547525A (en) | Data transmission method | |
JPS5249737A (en) | Random access memory |