GB1299020A - Improvements in or relating to pulse wave train generators - Google Patents

Improvements in or relating to pulse wave train generators

Info

Publication number
GB1299020A
GB1299020A GB4472270A GB4472270A GB1299020A GB 1299020 A GB1299020 A GB 1299020A GB 4472270 A GB4472270 A GB 4472270A GB 4472270 A GB4472270 A GB 4472270A GB 1299020 A GB1299020 A GB 1299020A
Authority
GB
United Kingdom
Prior art keywords
chain
frequency
pulse wave
points
pseudo
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
Application number
GB4472270A
Inventor
Alexander Jiri Perna
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Priority to GB4472270A priority Critical patent/GB1299020A/en
Publication of GB1299020A publication Critical patent/GB1299020A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/84—Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators

Landscapes

  • Synchronisation In Digital Transmission Systems (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

1299020 Pseudo-random sequences MARCONI INSTRUMENTS Ltd 9 Aug 1971 [19 Sept 1970] 44722/70 Heading G4D A pseudo random pulse wave generator comprises a shift register composed of a chain of bi-stables 1-5 and a clock pulse source 6; a feedback loop including an EXCL-OR gate 7 providing feedback from two separated points in the chain to an earlier point in the chain whereby the register produces a circulating pseudo-random pulse wave; and a switching circuit 9 operated at an integral multiple of the clock pulse frequency and connected to feed in succession to an output terminal 8 signals taken from points on the chain separated at least by one bi-stable. This arrangement increases the maximum frequency at which the generator is usable. In Fig. 2 the switching circuit 9 operates at twice the clock frequency; it may operate at four times the frequency and select outputs from four points on the chain (Fig. 3, not shown). Any number of bi-stables may be used. Application of the generator to testing a high frequency communication link is described.
GB4472270A 1970-09-19 1970-09-19 Improvements in or relating to pulse wave train generators Expired GB1299020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4472270A GB1299020A (en) 1970-09-19 1970-09-19 Improvements in or relating to pulse wave train generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4472270A GB1299020A (en) 1970-09-19 1970-09-19 Improvements in or relating to pulse wave train generators

Publications (1)

Publication Number Publication Date
GB1299020A true GB1299020A (en) 1972-12-06

Family

ID=10434470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4472270A Expired GB1299020A (en) 1970-09-19 1970-09-19 Improvements in or relating to pulse wave train generators

Country Status (1)

Country Link
GB (1) GB1299020A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6631390B1 (en) 2000-03-06 2003-10-07 Koninklijke Philips Electronics N.V. Method and apparatus for generating random numbers using flip-flop meta-stability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6631390B1 (en) 2000-03-06 2003-10-07 Koninklijke Philips Electronics N.V. Method and apparatus for generating random numbers using flip-flop meta-stability

Similar Documents

Publication Publication Date Title
GB1167272A (en) Improvement to Key Generators for Cryptographic Devices
GB1293978A (en) Radio frequency spectrometers
GB1150603A (en) Electronic Musical Instrument
US3735270A (en) Delayed pulse generator
GB1299020A (en) Improvements in or relating to pulse wave train generators
GB1406013A (en) Digital noise generator
GB1246905A (en) Improvements in or relating to devices for combining random sequences, using one or more switching operations
GB1206552A (en) Improvements in or relating to devices for generating pseudo-random sequences
GB1358194A (en) Gate control apparatus
GB665799A (en) Improvements in and relating to signal generators
GB909985A (en) Improvements in or relating to circuit arrangements for obtaining a pulse at one or other of two given regularly repeated instants of a pulse cycle
SU497718A1 (en) Device for generating pseudo-random signals of complex structure
SU553748A1 (en) Frequency divider
SU813706A1 (en) Switch-type generator control device
SU531269A1 (en) Pulse shaping device
GB1517781A (en) High-speed m-sequence generation
SU363186A1 (en) AGREED FILTER
SU428291A1 (en) DEVICE FOR VISUAL BODY CONTROL OF ELECTRICAL SIGNALS
SU374710A1 (en) DEVICE FORMATION OF PULSES
SU738120A1 (en) Synchronisable high-frequency generator
GB1517274A (en) Random event generators
JPS5534518A (en) Lsi parameter setting system
SU1265973A1 (en) Generator of pseudorandom binary sequences
JPS5373047A (en) Generation circuit for timing signal
SU696614A1 (en) Correlation detector

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee