JPS5472608A - Dial pulse receiving system - Google Patents
Dial pulse receiving systemInfo
- Publication number
- JPS5472608A JPS5472608A JP13972177A JP13972177A JPS5472608A JP S5472608 A JPS5472608 A JP S5472608A JP 13972177 A JP13972177 A JP 13972177A JP 13972177 A JP13972177 A JP 13972177A JP S5472608 A JPS5472608 A JP S5472608A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- timing
- voltage comparator
- pulse
- dial pulse
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
- H04Q1/36—Pulse-correcting arrangements, e.g. for reducing effects due to interference
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Abstract
PURPOSE:To remove receiving distortion of a dial pulse and propose to obtain stability against the number of times of operation and to miniaturize a circuit by using an electronic circuit. CONSTITUTION:An input dial pulse is detected I and the detected result is supplied to timing circuit portion III through combined portion II; different kind of timing is generated by controlling the standard electric potential of voltage comparator by means of the voltage comparator which detects time constant circuit operated according to the initial and terminal points of pulse and the status of time constant circuit to the value which varies according to the output of voltage comparator, so that the initial and terminal points of input pulse are delayed and outputted according to the timing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13972177A JPS5472608A (en) | 1977-11-21 | 1977-11-21 | Dial pulse receiving system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13972177A JPS5472608A (en) | 1977-11-21 | 1977-11-21 | Dial pulse receiving system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5472608A true JPS5472608A (en) | 1979-06-11 |
Family
ID=15251848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13972177A Pending JPS5472608A (en) | 1977-11-21 | 1977-11-21 | Dial pulse receiving system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5472608A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5141938A (en) * | 1974-10-07 | 1976-04-08 | Omron Tateisi Electronics Co | On ofudeireikairo |
JPS52119806A (en) * | 1976-03-30 | 1977-10-07 | Siemens Ag | Circuit for evaluating line status change for communication system such as telephone system |
-
1977
- 1977-11-21 JP JP13972177A patent/JPS5472608A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5141938A (en) * | 1974-10-07 | 1976-04-08 | Omron Tateisi Electronics Co | On ofudeireikairo |
JPS52119806A (en) * | 1976-03-30 | 1977-10-07 | Siemens Ag | Circuit for evaluating line status change for communication system such as telephone system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5472608A (en) | Dial pulse receiving system | |
JPS5399143A (en) | Non-contact igniter | |
JPS56131245A (en) | Signal detecting circuit | |
SU455491A1 (en) | Electronic analog key control device with galvanic isolation | |
JPS53138250A (en) | Output buffer circuit | |
JPS56158940A (en) | Constant current type electron capturing device | |
JPS54105583A (en) | Peak detection circuit | |
JPS5580951A (en) | Digital receiver | |
JPS5237734A (en) | Reference electric potential generator circuit | |
JPS56169969A (en) | Synchronisum separation circuit | |
JPS5260544A (en) | Signal converter circuit | |
JPS53144245A (en) | Clock output circuit | |
JPS52141162A (en) | Sample hold circuit | |
JPS5696526A (en) | Timing signal generating system | |
JPS5523487A (en) | Corrector of electronic watch | |
JPS5510255A (en) | Variable divider-multiplier circuit using n-channel filter | |
JPS55101059A (en) | Overcurrent detection circuit | |
JPS55132125A (en) | Digital-to-analog converter | |
JPS6478571A (en) | Electronic yoke circuit | |
JPS5553177A (en) | Driving circuit of gto thyristor | |
JPS5288744A (en) | Load concentrating control type receiver | |
JPS5218361A (en) | Frequency adjustor for electronic clocks | |
JPS54108670A (en) | Frequency-current converting circuit | |
JPS53125074A (en) | Pulse waveform generator | |
ES455362A1 (en) | Electrical integrator circuit with voltage comparator - has clock pulse generator, pulse adder, and ramp generator |