US4593324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image data storing device
Assignee: Fujifilm Business Innovation Corp
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Filing: 1985-09-26
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Granted: 1986-06-03
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Expires: 2005-09-26
Abstract
Abstract An image data storing device according to the invention includes a data compression/expansion device between the main memory of a CPU and an auxiliary memory device, such that image data are transmitted between the main memory and the data compression/expansion device, while data which are obtained by compressing the image data are transmitted between the data compression/expansion device and the auxiliary memory device.
Inventors
- 👤 Tetsuo Ohkubo
- 👤 Hiroyuki Kataoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:16
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/06; G06F3/0601; G06T; G06T9/00; G06T9/005; H; H04; H04N; H04N1/00; H04N1/21; H04N1/2166; H04N1/217; H04N1/2175; G06F3/0628; G06F3/0655; G06F3/0656
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
181 words
An image data storage system comprising a central processing unit connected to a main memory and connected to input/output devices, including: an auxiliary data storage system having a magnetic storage disc, read/write control means for said magnetic storage disc and a disc controller; a data compression/expansion device provided between said main memory and said auxiliary memory device, which compresses data by means of a one dimension run length coding technique with the compression rate of said compression/expansion device being selected according to the ratio between the data transfer rate from said memory to said compression/expansion device and the data transfer rate from said compression/expansion device to the storage media of said magnetic storage disc; said auxiliary memory device comprising a pair of FIFO memories for transfer of data in either direction between said magnetic storage disc and said compression/expansion device; wherein image data are transmitted between said main memory and said data compression/expansion device at the same time that compressed data which are obtained by compressing said image data are transmitted between said data compression/expansion device and said auxiliary memory device.
Claim 2
Dependent Claim
181 words
An image data storage system comprising a central processing unit connected to a main memory and connected to input/output devices, including: an auxiliary data storage system having a magnetic storage disc, read/write control means for said magnetic storage disc and a disc controller; a data compression/expansion device provided between said main memory and said auxiliary memory device, which compresses data by means of a one dimension run length coding technique with the compression rate of said compression/expansion device being selected according to the ratio between the data transfer rate from said memory to said compression/expansion device and the data transfer rate from said compression/expansion device to the storage media of said magnetic storage disc; said auxiliary memory device comprising a pair of FIFO memories for transfer of data in either direction between said magnetic storage disc and said compression/expansion device; wherein image data are transmitted between said main memory and said data compression/expansion device at the same time that compressed data which are obtained by compressing said image data are transmitted between said data compression/expansion device and said auxiliary memory device.
Claim 3
Dependent Claim
126 words
An image data storage device, comprising; a CPU having a main memory, an auxiliary memory device including an auxiliary data storage system having a magnetic storage disc, read/write control means for said magnetic storage disc and a disc controller, and a data compression/expansion device provided between said main memory and said auxiliary device for compressing data by one-dimensional run length coding, wherein image data are transmitted between said main memory and said data compression/expansion device, while data which are obtained by compressing said image data are transmitted between said data compression/expansion device and said auxiliary memory device, said auxiliary memory device, said auxiliary memory device comprising a pair FIFO memories for transfer of data in either direction between said magnetic storage disc and said compression/expansion device.
Claim 4
Dependent Claim
126 words
An image data storage device, comprising; a CPU having a main memory, an auxiliary memory device including an auxiliary data storage system having a magnetic storage disc, read/write control means for said magnetic storage disc and a disc controller, and a data compression/expansion device provided between said main memory and said auxiliary device for compressing data by one-dimensional run length coding, wherein image data are transmitted between said main memory and said data compression/expansion device, while data which are obtained by compressing said image data are transmitted between said data compression/expansion device and said auxiliary memory device, said auxiliary memory device, said auxiliary memory device comprising a pair FIFO memories for transfer of data in either direction between said magnetic storage disc and said compression/expansion device.
Claim 5
Dependent Claim
126 words
An image data storage device, comprising; a CPU having a main memory, an auxiliary memory device including an auxiliary data storage system having a magnetic storage disc, read/write control means for said magnetic storage disc and a disc controller, and a data compression/expansion device provided between said main memory and said auxiliary device for compressing data by two-dimensional run length coding, wherein image data are transmitted between said main memory and said data compression/expansion device, while data which are obtained by compressing said image data are transmitted between said data compression/expansion device and said auxiliary memory device, said auxiliary memory device, said auxiliary memory device comprising a pair FIFO memories for transfer of data in either direction between said magnetic storage disc and said compression/expansion device.
Claim 6
Dependent Claim
126 words
An image data storage device, comprising; a CPU having a main memory, an auxiliary memory device including an auxiliary data storage system having a magnetic storage disc, read/write control means for said magnetic storage disc and a disc controller, and a data compression/expansion device provided between said main memory and said auxiliary device for compressing data by two-dimensional run length coding, wherein image data are transmitted between said main memory and said data compression/expansion device, while data which are obtained by compressing said image data are transmitted between said data compression/expansion device and said auxiliary memory device, said auxiliary memory device, said auxiliary memory device comprising a pair FIFO memories for transfer of data in either direction between said magnetic storage disc and said compression/expansion device.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |