BE787492A - VARIABLE DELAY LINE FOR SOUND TRANSMISSION CONTROL - Google Patents
VARIABLE DELAY LINE FOR SOUND TRANSMISSION CONTROLInfo
- Publication number
- BE787492A BE787492A BE787492DA BE787492A BE 787492 A BE787492 A BE 787492A BE 787492D A BE787492D A BE 787492DA BE 787492 A BE787492 A BE 787492A
- Authority
- BE
- Belgium
- Prior art keywords
- transmission control
- delay line
- variable delay
- sound transmission
- sound
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/10—Control of transmission; Equalising by pilot signal
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/04—Time compression or expansion
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
- H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
- H03K4/501—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator
- H03K4/502—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator the capacitor being charged from a constant-current source
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
-
- 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
-
- 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
- H04B1/662—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 time/frequency relationship, e.g. time compression or expansion
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Quality & Reliability (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Analogue/Digital Conversion (AREA)
- Electrophonic Musical Instruments (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17157171A | 1971-08-13 | 1971-08-13 | |
US22403572A | 1972-02-07 | 1972-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE787492A true BE787492A (en) | 1973-02-12 |
Family
ID=26867208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE787492D BE787492A (en) | 1971-08-13 | VARIABLE DELAY LINE FOR SOUND TRANSMISSION CONTROL |
Country Status (19)
Country | Link |
---|---|
JP (1) | JPS551596B2 (en) |
AR (1) | AR201269A1 (en) |
AT (1) | AT354126B (en) |
BE (1) | BE787492A (en) |
CA (1) | CA965014A (en) |
CH (1) | CH564815A5 (en) |
CS (1) | CS195258B2 (en) |
DD (1) | DD100347A5 (en) |
DE (1) | DE2238136C2 (en) |
ES (1) | ES405791A1 (en) |
FR (1) | FR2150067A5 (en) |
GB (1) | GB1406831A (en) |
IL (1) | IL40057A (en) |
IT (1) | IT962099B (en) |
LU (1) | LU65886A1 (en) |
NL (1) | NL172200C (en) |
PH (1) | PH9570A (en) |
PL (1) | PL95183B1 (en) |
SE (1) | SE383934B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2217754A2 (en) * | 1971-08-13 | 1974-09-06 | Greenberg Sanford | Compander for reproducing speech or sound signals |
JPS4868641A (en) * | 1971-12-17 | 1973-09-19 | ||
JPS51104309A (en) * | 1975-03-11 | 1976-09-16 | Matsushita Electric Ind Co Ltd | Pitsuchihenkansochi |
FR2491703B1 (en) * | 1980-10-03 | 1988-04-29 | Thomson Csf | COMPRESSION DEVICE AND TEMPORAL DATA DECOMPRESSION DEVICE AND TRANSMISSION SYSTEM COMPRISING AT LEAST ONE OF SUCH DEVICES |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US320269A (en) * | 1885-06-16 | Vehicle running-gear | ||
US3093796A (en) * | 1959-10-28 | 1963-06-11 | Everett C Westerfield | Automatic signal time compressor with gate means for controlling rate of shift register output |
US3480737A (en) * | 1966-03-08 | 1969-11-25 | Cambridge Res & Dev Group | Apparatus for reducing time duration of signal reproduction |
GB1213818A (en) * | 1967-12-04 | 1970-11-25 | Chicago Musical Instr Co | Improvements in or relating to conversion of tonal character of aural signals |
CH474805A (en) * | 1968-08-27 | 1969-06-30 | Ibm | Method and circuit arrangement for improving the fundamental tone curve in speech synthesis |
US3621150A (en) * | 1969-09-17 | 1971-11-16 | Sanders Associates Inc | Speech processor for changing voice pitch |
JPS55802A (en) * | 1978-05-16 | 1980-01-07 | Bulten Kanthal Ab | Radiator for heating |
US4409736A (en) * | 1981-07-31 | 1983-10-18 | The Charles Stark Draper Laboratory, Inc. | Null seeking system for remote center compliance device |
-
0
- BE BE787492D patent/BE787492A/en not_active IP Right Cessation
-
1972
- 1972-07-31 PL PL1972157037A patent/PL95183B1/en unknown
- 1972-08-03 DE DE2238136A patent/DE2238136C2/en not_active Expired
- 1972-08-07 IL IL40057A patent/IL40057A/en unknown
- 1972-08-07 CS CS725500A patent/CS195258B2/en unknown
- 1972-08-07 NL NLAANVRAGE7210770,A patent/NL172200C/en active
- 1972-08-11 CA CA149,248A patent/CA965014A/en not_active Expired
- 1972-08-11 DD DD165020A patent/DD100347A5/xx unknown
- 1972-08-11 GB GB3755372A patent/GB1406831A/en not_active Expired
- 1972-08-11 SE SE7210455A patent/SE383934B/en unknown
- 1972-08-11 FR FR7229026A patent/FR2150067A5/fr not_active Expired
- 1972-08-11 AR AR243541A patent/AR201269A1/en active
- 1972-08-11 LU LU65886A patent/LU65886A1/xx unknown
- 1972-08-11 ES ES405791A patent/ES405791A1/en not_active Expired
- 1972-08-11 CH CH1195972A patent/CH564815A5/xx not_active IP Right Cessation
- 1972-08-11 PH PH13796*UA patent/PH9570A/en unknown
- 1972-08-12 IT IT52176/72A patent/IT962099B/en active
- 1972-08-14 AT AT699872A patent/AT354126B/en not_active IP Right Cessation
- 1972-08-14 JP JP7281375A patent/JPS551596B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL172200B (en) | 1983-02-16 |
SE383934B (en) | 1976-04-05 |
JPS551596B2 (en) | 1980-01-16 |
CA965014A (en) | 1975-03-25 |
FR2150067A5 (en) | 1973-03-30 |
DD100347A5 (en) | 1973-09-12 |
AT354126B (en) | 1979-12-27 |
LU65886A1 (en) | 1974-02-12 |
GB1406831A (en) | 1975-10-01 |
JPS4835703A (en) | 1973-05-26 |
CH564815A5 (en) | 1975-07-31 |
IL40057A (en) | 1975-07-28 |
PH9570A (en) | 1976-01-16 |
NL172200C (en) | 1983-07-18 |
ES405791A1 (en) | 1976-05-16 |
NL7210770A (en) | 1973-02-15 |
IT962099B (en) | 1973-12-20 |
IL40057A0 (en) | 1972-10-29 |
PL95183B1 (en) | 1977-09-30 |
DE2238136A1 (en) | 1973-03-01 |
ATA699872A (en) | 1979-05-15 |
AR201269A1 (en) | 1975-02-28 |
AU4542572A (en) | 1974-02-14 |
CS195258B2 (en) | 1980-01-31 |
DE2238136C2 (en) | 1984-04-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: SANFORD D. GREENBERG M.M. SCHIFFMAN ET CAMBRIDGE Effective date: 19840811 |