GB1073035A - Improvements in or relating to electric modulating and compandor circuit arrangements - Google Patents
Improvements in or relating to electric modulating and compandor circuit arrangementsInfo
- Publication number
- GB1073035A GB1073035A GB39351/65A GB3935165A GB1073035A GB 1073035 A GB1073035 A GB 1073035A GB 39351/65 A GB39351/65 A GB 39351/65A GB 3935165 A GB3935165 A GB 3935165A GB 1073035 A GB1073035 A GB 1073035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counter
- sept
- relating
- capacitor
- outputs
- 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
Classifications
-
- 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
- H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- 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
- H04B14/046—Systems or methods for reducing noise or bandwidth
- H04B14/048—Non linear compression or expansion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/10—Calibration or testing
- H03M1/1009—Calibration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
- Amplitude Modulation (AREA)
- Amplifiers (AREA)
Abstract
1,073,035. Pulse modulators. SIEMENS A.G. Sept. 15, 1965 [Sept. 16, 1964], No, 39351/65. Heading G4H. [Also in Division H4] In an electric modulator and compander circuit the inputs are sampled and successively passed to a capacitor and transistor network C1, Tr, the output from which is a series of pulse-duration modulated signals which are used to control a start-stop generator G feeding pulses to a binary counter Z. The outputs from the various stages of the counter are fed to a delay line La to give a serial output A. The outputs from the fourth and fifth stages K4, K5 of the counter are also fed via logic circuitry to the resistor transistor circuitry so that the rate of discharge of the capacitor is slowed down after the counter has reached a count of eight and raised to its original discharge rate when the counter has reached twenty-four.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1964S0093172 DE1224357C2 (en) | 1964-09-16 | 1964-09-16 | Modulator with instantaneous value compander for devices working with pulse modulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1073035A true GB1073035A (en) | 1967-06-21 |
Family
ID=7517779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39351/65A Expired GB1073035A (en) | 1964-09-16 | 1965-09-15 | Improvements in or relating to electric modulating and compandor circuit arrangements |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE669721A (en) |
| CH (1) | CH452596A (en) |
| DE (1) | DE1224357C2 (en) |
| GB (1) | GB1073035A (en) |
| NL (1) | NL143090B (en) |
| SE (1) | SE305673B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL156285B (en) * | 1970-04-29 | 1978-03-15 | Philips Nv | TRANSMITTER FOR SIGNAL TRANSMISSION BY PULSE CODE MODULATION. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1044881B (en) * | 1957-07-31 | 1958-11-27 | Siemens Ag | Circuit arrangement for quantizing a time interval |
-
1964
- 1964-09-16 DE DE1964S0093172 patent/DE1224357C2/en not_active Expired
-
1965
- 1965-09-08 NL NL656511715A patent/NL143090B/en unknown
- 1965-09-15 SE SE12010/65A patent/SE305673B/xx unknown
- 1965-09-15 GB GB39351/65A patent/GB1073035A/en not_active Expired
- 1965-09-16 BE BE669721D patent/BE669721A/xx unknown
- 1965-12-23 CH CH1774565A patent/CH452596A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6511715A (en) | 1966-03-17 |
| DE1224357B (en) | 1966-09-08 |
| NL143090B (en) | 1974-08-15 |
| CH452596A (en) | 1968-03-15 |
| DE1224357C2 (en) | 1973-07-12 |
| SE305673B (en) | 1968-11-04 |
| BE669721A (en) | 1966-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5142888B1 (en) | ||
| GB891918A (en) | Multiplex pulse code modulation system | |
| GB1057466A (en) | A circuit for providing an error signal for regulating the magnitude of a variable | |
| GB1227829A (en) | ||
| ES383528A1 (en) | Device for converting two magnitudes into a number of pulses proportional to the integral of their product | |
| GB1073035A (en) | Improvements in or relating to electric modulating and compandor circuit arrangements | |
| GB1345405A (en) | Signal converter apparatus | |
| CA932838A (en) | Electrical circuit arrangements for converting a variable rate of pulse transmission into a related electrical output quantity | |
| CA957754A (en) | Electrical circuit arrangements for converting a variable rate of pulse transmission into a related electrical output quantity | |
| GB1466832A (en) | Signal generator | |
| GB1205240A (en) | Improvements in and relating to electrical circuit arrangements | |
| GB1279611A (en) | Improvements in circuit arrangements | |
| CA952185A (en) | Potentiometer-resistor network for producing a non-linear direct current potential output signal | |
| ES390302A1 (en) | Variable capacity memory | |
| FR2281015A1 (en) | Electronic calculator for heat metering systems - has stage generating pulses in accordance with volume flow of medium | |
| GB1014358A (en) | Pulse converting system | |
| GB1170727A (en) | Improvements in or relating to Converters | |
| GB1196936A (en) | D-C to A-C Converter | |
| GB1144549A (en) | Pulse modulation system | |
| GB1412217A (en) | Extra high tension power supply units | |
| GB1057606A (en) | Pulse circuit arrangement | |
| GB1366580A (en) | Modulating circuit | |
| CA932408A (en) | Electrical circuit arrangements for converting a variable rate of pulse transmission into a related electrical output quantity | |
| ES390644A1 (en) | Pulse code modulation transmitter | |
| GB911897A (en) | Code modulator device |