FR2182855B1 - - Google Patents

Info

Publication number: FR2182855B1
Authority: FR; France
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

FR7306286A

Other languages

Other versions

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.)

Nixdorf Computer AG

Original Assignee

Nixdorf Computer AG

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.)

1972-02-22

Filing date

1973-02-22

Publication date

1976-04-30

1973-02-22 Application filed by Nixdorf Computer AG filed Critical Nixdorf Computer AG

1973-12-14 Publication of FR2182855A1 publication Critical patent/FR2182855A1/fr

1976-04-30 Application granted granted Critical

1976-04-30 Publication of FR2182855B1 publication Critical patent/FR2182855B1/fr

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
- 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
- H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
- H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
- H03K5/084—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold modified by switching, e.g. by a periodic signal or by a signal in synchronism with the transitions of the output signal

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Electromagnetism (AREA)
Signal Processing (AREA)
General Health & Medical Sciences (AREA)
Health & Medical Sciences (AREA)
Nonlinear Science (AREA)
Toxicology (AREA)
Artificial Intelligence (AREA)
Computer Vision & Pattern Recognition (AREA)
General Physics & Mathematics (AREA)
Theoretical Computer Science (AREA)
Manipulation Of Pulses (AREA)
Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Dc Digital Transmission (AREA)

FR7306286A 1972-02-22 1973-02-22 Expired FR2182855B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19722208310 DE2208310C3 (en)	1972-02-22	1972-02-22	Method and circuit arrangement for generating a pulse sequence of constant pulse amplitude from a bivalent signal sequence of variable signal amplitude on which a temporally variable constant value is superimposed

Publications (2)

Publication Number	Publication Date
FR2182855A1 FR2182855A1 (en)	1973-12-14
FR2182855B1 true FR2182855B1 (en)	1976-04-30

Family

ID=5836723

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7306286A Expired FR2182855B1 (en)	1972-02-22	1973-02-22

Country Status (10)

Country	Link
JP (1)	JPS5340305B2 (en)
AT (1)	AT329648B (en)
CA (1)	CA991746A (en)
CH (1)	CH568685A5 (en)
DE (1)	DE2208310C3 (en)
FR (1)	FR2182855B1 (en)
GB (1)	GB1417735A (en)
IT (1)	IT987015B (en)
NL (1)	NL167062C (en)
SE (1)	SE394779B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3832577A (en) *	1973-06-22	1974-08-27	Ibm	Threshold extraction circuitry for noisy electric waveforms
JPS51129131A (en) *	1975-05-01	1976-11-10	Omron Tateisi Electronics Co	Analog-digital conversion circuit
JPS5818661B2 (en) *	1975-05-20	1983-04-14	セイコーエプソン株式会社	tagyomitrisouchi
JPS6013596B2 (en) *	1977-08-19	1985-04-08	日本ビクター株式会社	Television video signal processing equipment
CA1122697A (en) *	1977-09-13	1982-04-27	Tom W. Ridler	Image discriminators
US4222073A (en) *	1977-10-19	1980-09-09	Matsushita Electric Industrial Co., Ltd.	Multiplexed information signal receiving system
JPS5585028A (en) *	1978-12-22	1980-06-26	Hitachi Ltd	Mark detecting signal amplifier
DE3173778D1 (en) *	1980-11-03	1986-03-27	Philips Corp	Signal processing for digital optical disc players
JPS57171868A (en) *	1981-04-16	1982-10-22	Toshiba Corp	Waveform shaping circuit
US4399474A (en) *	1981-08-10	1983-08-16	Ampex Corporation	Automatic threshold tracking system
DE3203559C2 (en) *	1982-02-03	1984-04-19	Siemens AG, 1000 Berlin und 8000 München	Method and circuit arrangement for converting analog scanning signals into binary square-wave signals
JPS59257A (en) *	1982-06-25	1984-01-05	Pioneer Electronic Corp	Digital modulating signal reader
JPS59117718A (en) *	1982-12-24	1984-07-07	Victor Co Of Japan Ltd	Reproducing device of digital signal
JPS60157677A (en) *	1984-01-27	1985-08-17	Usac Electronics Ind Co Ltd	Amplifier circuit system of bar code reader
JPS6261176A (en) *	1985-09-11	1987-03-17	Usac Electronics Ind Co Ltd	Floating slice system for bar code reader
GB2251508A (en) *	1991-01-03	1992-07-08	Nat Res Dev	Variable threshold apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1537116B2 (en) *	1967-08-30	1973-08-09	Robert Bosch Fernsehanlagen Gmbh, 6100 Darmstadt	CIRCUIT ARRANGEMENT FOR LEVEL-INDEPENDENT REGENERATION OF A MAEANDER-SHAPED PULSE SEQUENCE
US3593334A (en) *	1968-11-29	1971-07-13	Burroughs Corp	Pulse discrimination system
DE1958755C3 (en) *	1969-11-22	1984-07-19	ANT Nachrichtentechnik GmbH, 7150 Backnang	Threshold switch with a response threshold that can be controlled depending on the amplitude of the input signals
DE2037464A1 (en) *	1970-07-28	1972-02-10	Siemens Ag	Circuit arrangement for evaluating pulses

1972
- 1972-02-22 DE DE19722208310 patent/DE2208310C3/en not_active Expired
1973
- 1973-02-14 GB GB727773A patent/GB1417735A/en not_active Expired
- 1973-02-19 CA CA164,020A patent/CA991746A/en not_active Expired
- 1973-02-20 SE SE7302369A patent/SE394779B/en unknown
- 1973-02-21 AT AT154173A patent/AT329648B/en not_active IP Right Cessation
- 1973-02-21 IT IT2067373A patent/IT987015B/en active
- 1973-02-21 CH CH245073A patent/CH568685A5/xx not_active IP Right Cessation
- 1973-02-22 NL NL7302472A patent/NL167062C/en not_active IP Right Cessation
- 1973-02-22 JP JP2078873A patent/JPS5340305B2/ja not_active Expired
- 1973-02-22 FR FR7306286A patent/FR2182855B1/fr not_active Expired

Also Published As

Publication number	Publication date
CH568685A5 (en)	1975-10-31
AT329648B (en)	1976-05-25
IT987015B (en)	1975-02-20
CA991746A (en)	1976-06-22
SE394779B (en)	1977-07-04
FR2182855A1 (en)	1973-12-14
NL167062B (en)	1981-05-15
GB1417735A (en)	1975-12-17
DE2208310A1 (en)	1973-09-13
ATA154173A (en)	1975-08-15
DE2208310C3 (en)	1982-07-29
JPS4898724A (en)	1973-12-14
NL167062C (en)	1981-10-15
DE2208310B2 (en)	1974-02-14
JPS5340305B2 (en)	1978-10-26
NL7302472A (en)	1973-08-24

Publication	Publication Date	Title
JPS4959378U (en)	1974-05-24
CS151676B1 (en)	1973-11-19
CS153157B1 (en)	1974-02-25
CS155032B1 (en)	1974-04-30
CS155386B1 (en)	1974-05-30
CS156055B1 (en)	1974-07-24
CS156385B1 (en)	1974-07-24
CS158481B1 (en)	1974-11-25
CS157299B1 (en)	1974-09-16
CS157296B1 (en)	1974-09-16
CH568693A5 (en)	1975-10-31
CH577098A5 (en)	1976-06-30
BG19540A1 (en)	1975-06-25
CH1125573A4 (en)	1975-03-14
CH560019A5 (en)	1975-03-27
CH560434A5 (en)	1975-03-27
CH561007A5 (en)	1975-04-30
CH561296A5 (en)	1975-04-30
CH561361A5 (en)	1975-04-30
CH566052B5 (en)	1975-08-29
CH566080A5 (en)	1975-08-29
CH566193A5 (en)	1975-09-15
CH566510A5 (en)	1975-09-15
CH567360A5 (en)	1975-10-15
BG19261A1 (en)	1975-06-15

Legal Events

Date	Code	Title	Description
1991-03-22	DL	Decision of the director general to leave to make available licences of right
1991-12-27	ST	Notification of lapse