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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