BE779389A - Modulateur numerique a decalage de frequence utilisant une memoire morte - Google Patents

Modulateur numerique a decalage de frequence utilisant une memoire morte

Info

Publication number: BE779389A
Authority: BE; Belgium
Prior art keywords: frequency shift; digital frequency; shift modulator; dead memory; dead
Prior art date: 1971-02-19

Application number

BE779389A

Other languages

English (en)

Inventor

T R Lawrence

B R Saltzberg

Original Assignee

Western Electric Co

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.)

1971-02-19

Filing date

1972-02-15

Publication date

1972-05-30

1972-02-15 Application filed by Western Electric Co filed Critical Western Electric Co

1972-05-30 Publication of BE779389A publication Critical patent/BE779389A/fr

Links

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/02—Digital function generators
- G06F1/03—Digital function generators working, at least partly, by table look-up
- G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/12—Modulator circuits; Transmitter circuits
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2101/00—Indexing scheme relating to the type of digital function generated
- G06F2101/04—Trigonometric functions

Landscapes

Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Physics & Mathematics (AREA)
General Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Electrophonic Musical Instruments (AREA)

BE779389A 1971-02-19 1972-02-15 Modulateur numerique a decalage de frequence utilisant une memoire morte BE779389A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US11699871A	1971-02-19	1971-02-19

Publications (1)

Publication Number	Publication Date
BE779389A true BE779389A (fr)	1972-05-30

Family

ID=22370483

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE779389A BE779389A (fr)	1971-02-19	1972-02-15	Modulateur numerique a decalage de frequence utilisant une memoire morte

Country Status (11)

Country	Link
US (1)	US3697892A (fr)
JP (1)	JPS5117368B1 (fr)
BE (1)	BE779389A (fr)
CA (1)	CA942425A (fr)
DE (1)	DE2207365C3 (fr)
ES (1)	ES399905A1 (fr)
FR (1)	FR2125554B1 (fr)
GB (1)	GB1384777A (fr)
IT (1)	IT949152B (fr)
NL (1)	NL7201945A (fr)
SE (1)	SE373473B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3958191A (en) *	1974-11-21	1976-05-18	International Business Machines Corporation	Multi-line, multi-mode modulator using bandwidth reduction for digital fsk and dpsk modulation
GB1488433A (en) *	1974-11-21	1977-10-12	Ibm	Dpsk modulator
DE2659512B1 (de) *	1976-12-30	1978-05-24	Wandel & Goltermann	Verfahren und Schaltungsanordnung zum Erzeugen eines Digitalsignals zum Pruefen einer PCM-Endstelle
US4259648A (en) *	1979-07-11	1981-03-31	Bell Telephone Laboratories, Incorporated	One-bit frequency-shift-keyed modulator
FR2519491A1 (fr) *	1982-01-07	1983-07-08	Signaux Entr Electriques	Procede de generation de signaux periodiques, notamment de signaux modules par sauts de frequence ou de phase et generateur mettant en oeuvre le procede
US4602226A (en) *	1985-03-21	1986-07-22	General Electric Company	Apparatus for the gated modulation of a radio-frequency carrier signal
US5027372A (en) *	1987-03-04	1991-06-25	National Semiconductor Corp.	Differential phase shift keying modulator
US8373357B2 (en) *	2009-01-26	2013-02-12	Microchip Technology Incorporated	Modulator module in an integrated circuit device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3095539A (en) *	1959-12-18	1963-06-25	Sylvania Electric Prod	Digitally positioned wave filter
US3243703A (en) *	1962-05-24	1966-03-29	Gen Electric	Interpolative scanner using scanned electron discharge devices having overlapping conducting intervals
US3292034A (en) *	1963-09-27	1966-12-13	Honeywell Inc	Apparatus for synchronizing cathode ray deflection to a rotating antenna using digital techniques
DE1222974B (de) *	1965-02-04	1966-08-18	Siemens Ag	Verfahren und Schaltungsanordnung zur UEbertragung binaerer Signale in hoeher codierter Form
US3393364A (en) *	1965-10-23	1968-07-16	Signatron	Statistical delta modulation system
US3611209A (en) *	1969-12-11	1971-10-05	Bell Telephone Labor Inc	Digital filter frequency shift modulator

1971
- 1971-02-19 US US116998A patent/US3697892A/en not_active Expired - Lifetime
- 1971-09-14 CA CA122,802A patent/CA942425A/en not_active Expired
1972
- 1972-02-07 SE SE7201387A patent/SE373473B/xx unknown
- 1972-02-15 NL NL7201945A patent/NL7201945A/xx unknown
- 1972-02-15 BE BE779389A patent/BE779389A/fr unknown
- 1972-02-16 GB GB707272A patent/GB1384777A/en not_active Expired
- 1972-02-17 FR FR7205354A patent/FR2125554B1/fr not_active Expired
- 1972-02-17 DE DE2207365A patent/DE2207365C3/de not_active Expired
- 1972-02-18 JP JP47016552A patent/JPS5117368B1/ja active Pending
- 1972-02-18 IT IT67529/72A patent/IT949152B/it active
- 1972-02-18 ES ES399905A patent/ES399905A1/es not_active Expired

Also Published As

Publication number	Publication date
SE373473B (fr)	1975-02-03
FR2125554B1 (fr)	1977-04-01
DE2207365A1 (de)	1972-08-24
US3697892A (en)	1972-10-10
FR2125554A1 (fr)	1972-09-29
NL7201945A (fr)	1972-08-22
ES399905A1 (es)	1974-12-16
IT949152B (it)	1973-06-11
GB1384777A (en)	1975-02-19
DE2207365B2 (de)	1973-06-28
JPS5117368B1 (fr)	1976-06-02
CA942425A (en)	1974-02-19
DE2207365C3 (de)	1974-01-24

Publication	Publication Date	Title
BE774635A (fr)	1972-04-28	Oscillateur a onde rectangulaire a frequence stable
IT940010B (it)	1973-02-10	Serratura a cilindro
SE382516B (sv)	1976-02-02	Skiftregister.
BE785475R (fr)	1972-10-16	Circulateur a large
NL179962C (nl)	1986-12-01	Amplitude/frequentieomzetter.
SE382898B (sv)	1976-02-16	Fyrfas fasskiftnycklad kommunikationslenk
IT962624B (it)	1973-12-31	Cesso a cassa settica
IT975894B (it)	1974-08-10	Telementro a modulazione di frequenza
SE403204B (sv)	1978-07-31	Elektroniskt skiftregister
BE779389A (fr)	1972-05-30	Modulateur numerique a decalage de frequence utilisant une memoire morte
IT944334B (it)	1973-04-20	Registro a spostamento perfezio nato
BR7105418D0 (pt)	1973-04-19	Aparelho para formar estacas de areia compactada
SE394917B (sv)	1977-07-18	Digitalt skiftregister
IT967414B (it)	1974-02-28	Registro a spostamento
BE745092A (fr)	1970-07-01	Modulateur numerique de frequence
NL177874C (nl)	1985-12-02	Oscillator.
CH557113A (fr)	1974-12-13	Soustracteur de frequences a niveaux logiques.
ES184518Y (es)	1974-06-01	Llavero.
CH548137A (de)	1974-04-11	Gunnoszillator.
BE788206A (fr)	1973-02-28	Generateur de frequence
SU497383A1 (ru)	1975-12-30	Ковш экскаватор
AT324049B (de)	1975-08-11	Kettenschloss
CH550512A (de)	1974-06-14	Abstimmbarer quarzoszillator.
CH555112A (fr)	1974-10-15	Oscillateur a quartz.
FR2073578A5 (fr)	1971-10-01	Modulateur de frequence a filtre numerique