GB961760A - Improvements in or relating to devices for scanning pulse signals, transmitted non-synchronously, in synchronism with a clock pulse generator - Google Patents
Improvements in or relating to devices for scanning pulse signals, transmitted non-synchronously, in synchronism with a clock pulse generatorInfo
- Publication number
- GB961760A GB961760A GB41013/62A GB4101362A GB961760A GB 961760 A GB961760 A GB 961760A GB 41013/62 A GB41013/62 A GB 41013/62A GB 4101362 A GB4101362 A GB 4101362A GB 961760 A GB961760 A GB 961760A
- Authority
- GB
- United Kingdom
- Prior art keywords
- register
- pulse
- pulses
- clock
- stage
- 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
- 230000011664 signaling Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1608—Error detection by comparing the output signals of redundant hardware
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/13—Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals
- H03K5/135—Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals by the use of time reference signals, e.g. clock signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/068—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection by sampling faster than the nominal bit rate
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Quality & Reliability (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Manipulation Of Pulses (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
961,760. Electric selective signalling. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 30, 1962 [Nov. 2, 1961], No. 41013/62. Heading G4H. The duration of a pulse is encoded as a sequence of clock pulse, by a device not requiring the arrival of the pulse to be synchronised with the clock pulse generator, by applying to to two identical threshold devices 1, 3 (e.g. Schmitt triggers) the outputs of which control identical AND-gates 2, 4 to which are applied clock-pulses P 1 , the outputs of gates 2, 4 each being applied to an AND- gate 5 nad to an OR-gate 6, the outputs of which feed the first stages of shift registers 8, 9 respectively; the information stored in the first stage of register 8 being shifted to the second stage between adjacent clock pulses P 1 ; and means being provided for clearing to "ZERO", during the period between adjacent clock pulses,the "ONE" stored in the second register 9 during the previous period provided AND-gate 5 has stored a "ONE" in register 9 during either the same (first-said) period or one of the two preceding periods, but otherwise to transmit said "ONE" in register 9 to actuate an alarm device 12. Registers 8, 9 have three and two stages respectively and shifting is accomplished by clock pulses P 2 , P 3 respectively, of the same frequency as pulses P 1 but lagging in phase, P 3 later than P 2 later than P 1 . The shifting of a "ONE" in register 8 clears the second stage of register 9 to "ZERO". The alarm 12 is actuated if a "ONE" is present in the second stage of register 9 when a pulse P 3 occurs, i.e. if there were no "ONES" in register 8 on occurrence of the previous P 2 pulse. The system enables malfunctioning to be indicated without the alarm being actuated when the threshold levels of devices 1, 3 are (only) slightly different and a P 1 pulse arrives at gates 2, 4 when the input pulse signal level lies between the threshold levels. The sequence of pulses representing the input duration is fed to an unspecified unit 7.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL270959 | 1961-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB961760A true GB961760A (en) | 1964-06-24 |
Family
ID=67543958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB41013/62A Expired GB961760A (en) | 1961-11-02 | 1962-10-30 | Improvements in or relating to devices for scanning pulse signals, transmitted non-synchronously, in synchronism with a clock pulse generator |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS3929140B1 (en) |
| AT (1) | AT234403B (en) |
| BE (1) | BE624428A (en) |
| CH (1) | CH395185A (en) |
| DE (1) | DE1166515B (en) |
| GB (1) | GB961760A (en) |
| NL (1) | NL270959A (en) |
-
0
- BE BE624428D patent/BE624428A/xx unknown
- NL NL270959D patent/NL270959A/xx unknown
-
1962
- 1962-10-29 JP JP4796062A patent/JPS3929140B1/ja active Pending
- 1962-10-30 AT AT856162A patent/AT234403B/en active
- 1962-10-30 DE DEN22295A patent/DE1166515B/en active Pending
- 1962-10-30 GB GB41013/62A patent/GB961760A/en not_active Expired
- 1962-10-30 CH CH1271862A patent/CH395185A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1166515B (en) | 1964-03-26 |
| BE624428A (en) | |
| AT234403B (en) | 1964-07-10 |
| NL270959A (en) | |
| JPS3929140B1 (en) | 1964-12-15 |
| CH395185A (en) | 1965-07-15 |
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