GB1072819A – Improvements in or relating to apparatus for detecting and storing signals
– Google Patents
GB1072819A – Improvements in or relating to apparatus for detecting and storing signals
– Google Patents
Improvements in or relating to apparatus for detecting and storing signals
Info
Publication number
GB1072819A
GB1072819A
GB40265/65A
GB4026565A
GB1072819A
GB 1072819 A
GB1072819 A
GB 1072819A
GB 40265/65 A
GB40265/65 A
GB 40265/65A
GB 4026565 A
GB4026565 A
GB 4026565A
GB 1072819 A
GB1072819 A
GB 1072819A
Authority
GB
United Kingdom
Prior art keywords
waveform
pulses
circuit
clock pulses
transistor
Prior art date
1964-10-19
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
GB40265/65A
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.)
Bull General Electric NV
Original Assignee
Bull General Electric NV
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.)
1964-10-19
Filing date
1965-09-21
Publication date
1967-06-21
1965-09-21
Application filed by Bull General Electric NV
filed
Critical
Bull General Electric NV
1967-06-21
Publication of GB1072819A
publication
Critical
patent/GB1072819A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
H03K3/037—Bistable circuits
H03K3/0377—Bistables with hysteresis, e.g. Schmitt trigger
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/30—Modifications for providing a predetermined threshold before switching
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
H03K3/313—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of semiconductor devices with two electrodes, one or two potential-jump barriers, and exhibiting a negative resistance characteristic
H03K3/315—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of semiconductor devices with two electrodes, one or two potential-jump barriers, and exhibiting a negative resistance characteristic the devices being tunnel diodes
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
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
H03K5/01—Shaping pulses
H03K5/04—Shaping pulses by increasing duration; by decreasing duration
H03K5/05—Shaping pulses by increasing duration; by decreasing duration by the use of clock signals or other time reference signals
Abstract
1,072,819. Transistor pulse circuits. SOCIETE INDUSTRIELLE BULL-GENERAL ELECTRIC. Sept. 21, 1965 [Oet. 19, 1964,], No. 40265/65. Heading H3T. In a circuit for detecting slowly rising signals such as asynchronous data pulses from a slow store, the signals are gated to an. integrator by clock pulses having a repetition period much less than the rise time and the output of the integrator sets a bi-stable circuit when the signal amplitude exceeds a given level. In Fig. 1, terminal E1 receives positive-going signal pulses (waveform E1, Fig. 3, not shown), and terminal E2 receives the clock pulses (waveform E2). These terminals are connected to an AND gate D1, D2 so that during clock pulses an integrating capacitor charges to an extent dependent upon the amplitude which the signal pulse has reached allowing the potential at point A to rise (waveform A). At the end of the clock pulse point B goes negative by an amount dependent upon the charge (waveform B) and if this is sufficient, transistor T is cut off. Accordingly a bi-stable tunnel diode circuit DT is switched to its high voltage state causing T2 to conduct and T3 to be cut off (waveform F). This allows clock pulses to be passed through a gate diode D4 (waveform S1). When one of the clock pulses has been used coincident pulses are applied to the input of a transistor gate (Fig. 4, not shown) to earth point 17 so as to restore the tunnel diode to its low voltage state and thus terminate the output pulse train. In an alternative circuit (Fig. 2, not shown) the tunnel diode (DT) is normally in its high voltage state and is controlled directly by the input gate D1, D2 and integrating circuit R1, C2, transistor T1 being omitted.
GB40265/65A
1964-10-19
1965-09-21
Improvements in or relating to apparatus for detecting and storing signals
Expired
GB1072819A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR991901A
FR1426189A
(en)
1964-10-19
1964-10-19
Signal detection and storage device
Publications (1)
Publication Number
Publication Date
GB1072819A
true
GB1072819A
(en)
1967-06-21
Family
ID=8840604
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB40265/65A
Expired
GB1072819A
(en)
1964-10-19
1965-09-21
Improvements in or relating to apparatus for detecting and storing signals
Country Status (4)
Country
Link
US
(1)
US3421022A
(en)
DE
(1)
DE1237176B
(en)
FR
(1)
FR1426189A
(en)
GB
(1)
GB1072819A
(en)
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3584298A
(en)
*
1969-03-21
1971-06-08
Sun Electric Corp
Frequency detection apparatus including voltage responsive means coupling first and second capacitor charge-discharge circuits
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
BE628083A
(en)
*
1962-02-13
US3253165A
(en)
*
1963-12-23
1966-05-24
Rca Corp
Current steering logic circuit employing negative resistance devices in the output networks of the amplifying devices
1964
1964-10-19
FR
FR991901A
patent/FR1426189A/en
not_active
Expired
1965
1965-09-17
US
US487991A
patent/US3421022A/en
not_active
Expired – Lifetime
1965-09-18
DE
DES99507A
patent/DE1237176B/en
active
Pending
1965-09-21
GB
GB40265/65A
patent/GB1072819A/en
not_active
Expired
Also Published As
Publication number
Publication date
DE1237176B
(en)
1967-03-23
US3421022A
(en)
1969-01-07
FR1426189A
(en)
1966-01-28
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None