JPS57101937A - Data storage device - Google Patents
Data storage deviceInfo
- Publication number
- JPS57101937A JPS57101937A JP17790880A JP17790880A JPS57101937A JP S57101937 A JPS57101937 A JP S57101937A JP 17790880 A JP17790880 A JP 17790880A JP 17790880 A JP17790880 A JP 17790880A JP S57101937 A JPS57101937 A JP S57101937A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- frame
- signal
- stored
- storage
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
Abstract
PURPOSE:To economize storage capacity and to shorten a transfer speed, by storing a specific data frame pattern which appears repeatedly, as 1-data frame. CONSTITUTION:A transmitted transfer frame is compared with a compressed data block 11 stored in a storage circuit 3 by a comparing circuit 4. At the same time, its transfer frame 10 is stored in a temporary storage circuit 2. As a result of comparison by the circuit 4, in case of coincidence, a coincidence signal 12 is inputted to a write controlling circuit 5. When the signal 12 is supplied, the circuit 5 switches a switching circuit 6 to a compression display frame 14 from the transfer frame, and also stores the frame 14 in a storage circuit 7. In case of dissidence as a result of comparison, a dissidence signal 13 is inputted to the circuit 5. When the signal 13 is supplied, the circuit 5 switches the circuit 6 to the circuit 2, and stores the transfer frame stored in the circuit 2 by that time in the storage circuit 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17790880A JPS57101937A (en) | 1980-12-16 | 1980-12-16 | Data storage device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17790880A JPS57101937A (en) | 1980-12-16 | 1980-12-16 | Data storage device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57101937A true JPS57101937A (en) | 1982-06-24 |
Family
ID=16039158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17790880A Pending JPS57101937A (en) | 1980-12-16 | 1980-12-16 | Data storage device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57101937A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60116228A (en) * | 1983-06-20 | 1985-06-22 | ユニシス コーポレーション | High speed data compressing and recovering device |
JPS61284119A (en) * | 1985-06-11 | 1986-12-15 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Compression system for data |
JPH04223909A (en) * | 1990-08-10 | 1992-08-13 | Hitachi Metals Ltd | Bucket elevator and driving method thereof |
-
1980
- 1980-12-16 JP JP17790880A patent/JPS57101937A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60116228A (en) * | 1983-06-20 | 1985-06-22 | ユニシス コーポレーション | High speed data compressing and recovering device |
JPH0568893B2 (en) * | 1983-06-20 | 1993-09-29 | Unisys Corp | |
JPS61284119A (en) * | 1985-06-11 | 1986-12-15 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Compression system for data |
JPH0262058B2 (en) * | 1985-06-11 | 1990-12-21 | Intaanashonaru Bijinesu Mashiinzu Corp | |
JPH04223909A (en) * | 1990-08-10 | 1992-08-13 | Hitachi Metals Ltd | Bucket elevator and driving method thereof |
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