JPS57127982A - Memory address system - Google Patents
Memory address systemInfo
- Publication number
- JPS57127982A JPS57127982A JP959581A JP959581A JPS57127982A JP S57127982 A JPS57127982 A JP S57127982A JP 959581 A JP959581 A JP 959581A JP 959581 A JP959581 A JP 959581A JP S57127982 A JPS57127982 A JP S57127982A
- Authority
- JP
- Japan
- Prior art keywords
- data
- address
- signal
- parallel
- bit
- 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.)
- Pending
Links
Abstract
PURPOSE: To achieve simultaneous output of data in parallel n-bit as data of parallel 2n-bit, by taking one memory address of two sets of parallel n-bit data as the address added with a specified value to another memory address.
CONSTITUTION: In writing two sets of data in parallel n-bit to a memory 2 with a CRT display controller 1, character data selects 4 an address signal A' adding a specified address value K to an address signal A at the 1st hold of one period of a clock CK, and also modified data selects 4 the address signal A at the latter half of one period of the signal CK respectively. and both data are written in (A+K) and A addres in time division. At readout, a signal adding 3 the specified address value to the address signal A at the 1st half of one period of the signal CK and the address signal A at the latter half of one period of the signal CK are given to a memory 2 via a selector 4 respectively and read out in time division, allowing to output two sets of data as the data in parallel 2n-bit data at the next data readout cycle.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP959581A JPS57127982A (en) | 1981-01-27 | 1981-01-27 | Memory address system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP959581A JPS57127982A (en) | 1981-01-27 | 1981-01-27 | Memory address system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57127982A true JPS57127982A (en) | 1982-08-09 |
Family
ID=11724675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP959581A Pending JPS57127982A (en) | 1981-01-27 | 1981-01-27 | Memory address system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57127982A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60117286A (en) * | 1983-11-29 | 1985-06-24 | 三菱電機株式会社 | Video display controller |
EP0572904A2 (en) * | 1992-05-29 | 1993-12-08 | Sony Corporation | Moving picture encoding apparatus and method |
EP0652676A1 (en) * | 1993-11-08 | 1995-05-10 | Sony Corporation | Apparatus and method for compressing a digital motion picture signal |
US5461423A (en) * | 1992-05-29 | 1995-10-24 | Sony Corporation | Apparatus for generating a motion vector with half-pixel precision for use in compressing a digital motion picture signal |
-
1981
- 1981-01-27 JP JP959581A patent/JPS57127982A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60117286A (en) * | 1983-11-29 | 1985-06-24 | 三菱電機株式会社 | Video display controller |
EP0572904A2 (en) * | 1992-05-29 | 1993-12-08 | Sony Corporation | Moving picture encoding apparatus and method |
EP0572904A3 (en) * | 1992-05-29 | 1994-08-17 | Sony Corp | Moving picture encoding apparatus and method |
US5408269A (en) * | 1992-05-29 | 1995-04-18 | Sony Corporation | Moving picture encoding apparatus and method |
US5461423A (en) * | 1992-05-29 | 1995-10-24 | Sony Corporation | Apparatus for generating a motion vector with half-pixel precision for use in compressing a digital motion picture signal |
EP0652676A1 (en) * | 1993-11-08 | 1995-05-10 | Sony Corporation | Apparatus and method for compressing a digital motion picture signal |
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