CA1015854A - Data recording with compression of data - Google Patents
Data recording with compression of dataInfo
- Publication number
- CA1015854A CA1015854A CA201,011A CA201011A CA1015854A CA 1015854 A CA1015854 A CA 1015854A CA 201011 A CA201011 A CA 201011A CA 1015854 A CA1015854 A CA 1015854A
- Authority
- CA
- Canada
- Prior art keywords
- data
- compression
- recording
- data recording
- 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.)
- Expired
Links
- 230000006835 compression Effects 0.000 title 1
- 238000007906 compression Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/04—Arrangements for displaying electric variables or waveforms for producing permanent records
- G01R13/06—Modifications for recording transient disturbances, e.g. by starting or accelerating a recording medium
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/005—Circuits for altering the indicating characteristic, e.g. making it non-linear
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/12—Measuring rate of change
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Memory System (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Recording Measured Values (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Analogue/Digital Conversion (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7319565A FR2231972B1 (da) | 1973-05-29 | 1973-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1015854A true CA1015854A (en) | 1977-08-16 |
Family
ID=9120208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA201,011A Expired CA1015854A (en) | 1973-05-29 | 1974-05-28 | Data recording with compression of data |
Country Status (10)
Country | Link |
---|---|
US (1) | US3943349A (da) |
JP (1) | JPS5444420B2 (da) |
CA (1) | CA1015854A (da) |
CH (1) | CH581884A5 (da) |
DE (1) | DE2423351B2 (da) |
ES (1) | ES426754A1 (da) |
FR (1) | FR2231972B1 (da) |
GB (1) | GB1468218A (da) |
IT (1) | IT1013246B (da) |
SE (1) | SE404550B (da) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5339840A (en) * | 1976-09-24 | 1978-04-12 | Takeda Riken Ind Co Ltd | Data recorder |
DE2706080C2 (de) * | 1977-02-12 | 1986-10-23 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur adaptiven Quantisierung von Transformationskoeffizienten eines Bildes und Anordnung zum Durchführen des Verfahrens |
CA1031396A (en) * | 1977-02-16 | 1978-05-16 | A. J. Brisson And Son Manufacturing Limited | Walking beam attachment for rear axles and the like |
JPS5915530B2 (ja) * | 1978-02-21 | 1984-04-10 | 大日本スクリ−ン製造株式会社 | アナログ信号のサンプリング方法 |
ZA782493B (en) * | 1978-05-01 | 1979-12-27 | Anglo Amer Corp South Africa | Rate of change detection |
GB2069264A (en) * | 1980-07-02 | 1981-08-19 | Hewlett Packard Co | Data compression apparatus |
JPS5819229A (ja) * | 1981-07-24 | 1983-02-04 | 株式会社東芝 | 携帯用長時間心電図記録装置 |
US4751673A (en) * | 1982-03-22 | 1988-06-14 | The Babcock & Wilcox Company | System for direct comparison and selective transmission of a plurality of discrete incoming data |
DE3463976D1 (en) * | 1983-06-24 | 1987-07-02 | Siemens Ag | Disturbances detecting and recording system |
JPS6029834A (ja) * | 1983-07-06 | 1985-02-15 | Fuji Electric Co Ltd | デ−タ処理方法 |
US4879558A (en) * | 1986-12-12 | 1989-11-07 | Sangamo Weston, Inc. | Data compression apparatus and method for data recorder with waveform envelope display |
US6356961B1 (en) * | 1994-06-03 | 2002-03-12 | Motorola, Inc. | Method and apparatus for minimizing an amount of data communicated between devices and necessary to modify stored electronic documents |
US7197189B2 (en) * | 2003-05-15 | 2007-03-27 | Hewlett-Packard Development Company, L.P. | System and method having removable storage medium with data compression |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1162398B (de) * | 1961-10-24 | 1964-02-06 | Ibm | Verdichter fuer Daten, die aus Bits verschiedener Wertigkeit bestehen |
US3225333A (en) * | 1961-12-28 | 1965-12-21 | Ibm | Differential quantitized storage and compression |
US3490690A (en) * | 1964-10-26 | 1970-01-20 | Ibm | Data reduction system |
US3641506A (en) * | 1969-11-14 | 1972-02-08 | Gen Dynamics Corp | Information handling system especially for magnetic recording and reproducing of digital data |
US3726993A (en) * | 1971-12-10 | 1973-04-10 | Xerox Corp | Data compression methods and apparatus |
-
1973
- 1973-05-29 FR FR7319565A patent/FR2231972B1/fr not_active Expired
-
1974
- 1974-05-14 DE DE19742423351 patent/DE2423351B2/de active Granted
- 1974-05-17 CH CH680474A patent/CH581884A5/xx not_active IP Right Cessation
- 1974-05-27 IT IT51218/74A patent/IT1013246B/it active
- 1974-05-28 CA CA201,011A patent/CA1015854A/en not_active Expired
- 1974-05-28 US US05/473,705 patent/US3943349A/en not_active Expired - Lifetime
- 1974-05-28 SE SE7407048A patent/SE404550B/xx not_active IP Right Cessation
- 1974-05-29 ES ES426754A patent/ES426754A1/es not_active Expired
- 1974-05-29 GB GB2384674A patent/GB1468218A/en not_active Expired
- 1974-05-29 JP JP6068374A patent/JPS5444420B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE404550B (sv) | 1978-10-09 |
DE2423351A1 (de) | 1974-12-12 |
JPS5444420B2 (da) | 1979-12-26 |
JPS5022547A (da) | 1975-03-11 |
FR2231972A1 (da) | 1974-12-27 |
IT1013246B (it) | 1977-03-30 |
US3943349A (en) | 1976-03-09 |
CH581884A5 (da) | 1976-11-15 |
ES426754A1 (es) | 1977-01-01 |
SE7407048L (da) | 1974-12-02 |
DE2423351B2 (de) | 1976-09-02 |
FR2231972B1 (da) | 1977-04-29 |
GB1468218A (en) | 1977-03-23 |
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