IL89672A - שיטה יעילה ספקטרלית להעברת אות מידע - Google Patents
שיטה יעילה ספקטרלית להעברת אות מידעInfo
- Publication number
- IL89672A IL89672A IL8967289A IL8967289A IL89672A IL 89672 A IL89672 A IL 89672A IL 8967289 A IL8967289 A IL 8967289A IL 8967289 A IL8967289 A IL 8967289A IL 89672 A IL89672 A IL 89672A
- Authority
- IL
- Israel
- Prior art keywords
- samples
- processed
- signal
- recovered
- sample
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 45
- 238000004891 communication Methods 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 9
- 230000000873 masking effect Effects 0.000 claims description 8
- 230000002411 adverse Effects 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 2
- 239000000523 sample Substances 0.000 description 56
- 239000013598 vector Substances 0.000 description 35
- 238000010606 normalization Methods 0.000 description 26
- 238000010586 diagram Methods 0.000 description 18
- 230000003595 spectral effect Effects 0.000 description 17
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000005562 fading Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000036039 immunity Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000013478 data encryption standard Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000001260 vocal cord Anatomy 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
- H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
- H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
- H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18776688A | 1988-04-29 | 1988-04-29 | |
| US07/187,685 US4979188A (en) | 1988-04-29 | 1988-04-29 | Spectrally efficient method for communicating an information signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL89672A0 IL89672A0 (en) | 1989-09-28 |
| IL89672A true IL89672A (he) | 1994-04-12 |
Family
ID=26883304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL8967289A IL89672A (he) | 1988-04-29 | 1989-03-20 | שיטה יעילה ספקטרלית להעברת אות מידע |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0377687A4 (he) |
| JP (1) | JPH03500118A (he) |
| KR (1) | KR920007093B1 (he) |
| CN (1) | CN1038003A (he) |
| FI (1) | FI896174A0 (he) |
| IL (1) | IL89672A (he) |
| WO (1) | WO1989010661A1 (he) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5559900A (en) * | 1991-03-12 | 1996-09-24 | Lucent Technologies Inc. | Compression of signals for perceptual quality by selecting frequency bands having relatively high energy |
| FI90934C (fi) * | 1992-04-13 | 1994-04-11 | Salon Televisiotehdas Oy | Menetelmä digitaalisen informaation sisällyttämiseksi audiosignaaliin ennen sen kanavakoodausta |
| WO1994028633A1 (fr) * | 1993-05-31 | 1994-12-08 | Sony Corporation | Appareil et procede de codage ou decodage de signaux, et support d'enregistrement |
| DE69432538T2 (de) * | 1993-06-30 | 2004-04-01 | Sony Corp. | Digitales Signalkodierungsgerät, dazugehöriges Dekodiergerät und Aufzeichnungsträger |
| EP0648031B1 (en) * | 1993-10-12 | 2007-08-01 | Matsushita Electric Industrial Co., Ltd. | Audio scrambling system for scrambling and descrambling audio signals |
| US5805770A (en) * | 1993-11-04 | 1998-09-08 | Sony Corporation | Signal encoding apparatus, signal decoding apparatus, recording medium, and signal encoding method |
| WO1995021490A1 (fr) * | 1994-02-05 | 1995-08-10 | Sony Corporation | Procede et dispositif de codage de l'information et procede et dispositif de decodage de l'information |
| BR9505863A (pt) * | 1994-04-01 | 1996-02-21 | Sony Corp | Processos para codificar um sinal de entrada para transmitir um sinal codificado e para decodificar uma cadeia de códigos composta de sinais codificados aparelhos para codificar um sinal de entrada e para decodificar uma cadeia de códigos composta de sinais codificados e meio de gravaçao de informações |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2412987A1 (fr) * | 1977-12-23 | 1979-07-20 | Ibm France | Procede de compression de donnees relatives au signal vocal et dispositif mettant en oeuvre ledit procede |
| US4455649A (en) * | 1982-01-15 | 1984-06-19 | International Business Machines Corporation | Method and apparatus for efficient statistical multiplexing of voice and data signals |
| JPS615658A (ja) * | 1984-06-01 | 1986-01-11 | Fujitsu Ltd | 信号監視回路 |
| DE3506912A1 (de) * | 1985-02-27 | 1986-08-28 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Verfahren zur uebertragung eines audiosignals |
-
1989
- 1989-03-20 IL IL8967289A patent/IL89672A/he unknown
- 1989-04-03 JP JP1504740A patent/JPH03500118A/ja active Pending
- 1989-04-03 KR KR1019890702478A patent/KR920007093B1/ko not_active IP Right Cessation
- 1989-04-03 EP EP19890904890 patent/EP0377687A4/en not_active Ceased
- 1989-04-03 WO PCT/US1989/001345 patent/WO1989010661A1/en not_active Application Discontinuation
- 1989-04-28 CN CN89102988A patent/CN1038003A/zh active Pending
- 1989-12-21 FI FI896174A patent/FI896174A0/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1989010661A1 (en) | 1989-11-02 |
| KR920007093B1 (ko) | 1992-08-24 |
| FI896174A0 (fi) | 1989-12-21 |
| JPH03500118A (ja) | 1991-01-10 |
| EP0377687A4 (en) | 1991-09-11 |
| KR900701082A (ko) | 1990-08-17 |
| CN1038003A (zh) | 1989-12-13 |
| IL89672A0 (en) | 1989-09-28 |
| EP0377687A1 (en) | 1990-07-18 |
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