JPS5448472A - Companding pcm coder - Google Patents
Companding pcm coderInfo
- Publication number
- JPS5448472A JPS5448472A JP11529177A JP11529177A JPS5448472A JP S5448472 A JPS5448472 A JP S5448472A JP 11529177 A JP11529177 A JP 11529177A JP 11529177 A JP11529177 A JP 11529177A JP S5448472 A JPS5448472 A JP S5448472A
- Authority
- JP
- Japan
- Prior art keywords
- register
- linear
- output
- pcm coder
- dimodulating
- 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.)
- Pending
Links
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To establish the companding PCM coder with the circuit constitution suitable for LSI, by converting the content of register for non-linear to linear code conversion, and by providing the conversion circuit controlling the switch corresponding to each bit.
CONSTITUTION: The circit 32 sampling and holding the input signal, capacitive element train 28 of which ends are grounded through the second capacitances 26 and 27, and the both ends and the first capacitance 25 junction are respectively connected to the switch 16 selected and connected to the reference power supply 17 and ground 18 through the second capacitors 26 and 27, and which causes the local dimodulating output signal to one end connected in series with the capacitor 25, comparator 29 comparing the amplitude of the local dimodulating output signal to and the sampling holding output, cade register 36 set in a given order according to the output of the comparator 29, and the conversion circuit 38 controlling the switch corresponding to each bit after the non-linear to linear code conversion for the content of the register 36, are provided, and the companding PCM coder with the circuit constitution suitable for large scale integration can be obtained
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11529177A JPS5448472A (en) | 1977-09-26 | 1977-09-26 | Companding pcm coder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11529177A JPS5448472A (en) | 1977-09-26 | 1977-09-26 | Companding pcm coder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5448472A true JPS5448472A (en) | 1979-04-17 |
Family
ID=14659012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11529177A Pending JPS5448472A (en) | 1977-09-26 | 1977-09-26 | Companding pcm coder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5448472A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3033915A1 (en) * | 1979-09-10 | 1981-03-12 | Hitachi, Ltd., Tokyo | PCM DECODER. |
-
1977
- 1977-09-26 JP JP11529177A patent/JPS5448472A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3033915A1 (en) * | 1979-09-10 | 1981-03-12 | Hitachi, Ltd., Tokyo | PCM DECODER. |
DE3033915C2 (en) * | 1979-09-10 | 1985-08-22 | Hitachi, Ltd., Tokio/Tokyo | PCM decoder. |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT8319275A0 (en) | ENCODER TO CONVERT A LINEAR INPUT SIGNAL TO A QUANTIZED DIFFERENTIAL PCM OUTPUT SIGNAL. | |
NL191160C (en) | Circuit for converting a single input signal into at least one output signal. | |
JPS5425613A (en) | Analog multiplexer | |
IT7920518A0 (en) | CIRCUIT ARRANGEMENT FOR CONVERTING DIGITAL SIGNALS, ESPECIALLY PCM SIGNALS, INTO CORRESPONDING ANALOGUE SIGNALS, USING AN R-2R CHAIN NETWORK. | |
JPS57124933A (en) | Digital-to-analog converter | |
JPS5448472A (en) | Companding pcm coder | |
JPS5376653A (en) | Digital-analog conversion circuit | |
JPS5348452A (en) | Coder | |
JPS5432256A (en) | Coder | |
JPS5318373A (en) | Drift compensation system of a/d conversion circuit | |
IT1202873B (en) | MONOLITHIC INTEGRATED CIRCUIT SUITABLE FOR CONVERTING A BIN CODE SIGNAL INTO ANALOGUE SIGNAL IN STEPS | |
JPS54136163A (en) | Digital-analog converting device | |
JPS52119249A (en) | Photoelectric detector | |
JPS5573134A (en) | Analog/digital converter with check function | |
JPS5440069A (en) | Ad converter | |
JPS53148952A (en) | Analog-digital converter | |
JPS5377163A (en) | Analog digital converter | |
JPS53116752A (en) | Analogue arithmetic unit | |
JPS5595181A (en) | Logarithmic converter | |
JPS5422752A (en) | Analog-digital converting device | |
JPS5582540A (en) | Analog digital conversion unit | |
JPS5313964A (en) | Measurement device | |
JPS5544972A (en) | Measuring range changing method and device for pen recorder | |
JPS544058A (en) | Analog to digital converter of integration type | |
JPS52141163A (en) | Sample hold circuit |