IT939838B - Filtro numerico programmabile per segnali codificati in forma nume rica - Google Patents

Filtro numerico programmabile per segnali codificati in forma nume rica

Info

Publication number: IT939838B
Authority: IT; Italy
Prior art keywords: number form; signals coded; numerical filter; programmable numerical; programmable
Prior art date: 1970-12-21

Application number

IT70095/71A

Other languages

English (en)

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.)

1970-12-21

Filing date

1971-09-20

Publication date

1973-02-10

1971-09-20 Application filed by Western Electric Co filed Critical Western Electric Co

1973-02-10 Application granted granted Critical

1973-02-10 Publication of IT939838B publication Critical patent/IT939838B/it

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0294—Variable filters; Programmable filters
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0283—Filters characterised by the filter structure
- H03H17/0286—Combinations of filter structures
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/04—Recursive filters

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Computer Hardware Design (AREA)
Mathematical Physics (AREA)
Complex Calculations (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)

IT70095/71A 1970-12-21 1971-09-20 Filtro numerico programmabile per segnali codificati in forma nume rica IT939838B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US9974770A	1970-12-21	1970-12-21

Publications (1)

Publication Number	Publication Date
IT939838B true IT939838B (it)	1973-02-10

Family

ID=22276425

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT70095/71A IT939838B (it)	1970-12-21	1971-09-20	Filtro numerico programmabile per segnali codificati in forma nume rica

Country Status (10)

Country	Link
US (1)	US3706076A (it)
JP (1)	JPS5312145B1 (it)
BE (1)	BE772813A (it)
CA (1)	CA937297A (it)
DE (1)	DE2146982A1 (it)
FR (1)	FR2119309A5 (it)
GB (1)	GB1355107A (it)
IT (1)	IT939838B (it)
NL (1)	NL7112895A (it)
SE (1)	SE364832B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3798560A (en) *	1973-01-29	1974-03-19	Bell Telephone Labor Inc	Adaptive transversal equalizer using a time-multiplexed second-order digital filter
IT980928B (it) *	1973-04-30	1974-10-10	Cselt Centro Studi Lab Telecom	Apparecchiature di utente e di in gresso ad una centrale pcm per la trasmissione di dati ad alta velo cita
NL179619C (nl) *	1974-04-18	1987-05-18	Philips Nv	Digitale signaalverwerkingsinrichting voor het realiseren van een vooraf bepaalde overdrachtskarakteristiek.
FR2295665A1 (fr) *	1974-12-18	1976-07-16	Labo Cent Telecommunicat	Recepteur numerique de signaux multifrequences
JPS5376726A (en) *	1976-12-20	1978-07-07	Toshiba Corp	Synchronizing system digital filter
US4117541A (en) *	1977-11-07	1978-09-26	Communications Satellite Corporation	Configurable parallel arithmetic structure for recursive digital filtering
US4354248A (en) *	1979-11-28	1982-10-12	Motorola, Inc.	Programmable multifrequency tone receiver
JPS57142022A (en) *	1981-02-26	1982-09-02	Casio Comput Co Ltd	Resonance characteristic controlling system in digital filter
US4467440A (en) *	1980-07-09	1984-08-21	Casio Computer Co., Ltd.	Digital filter apparatus with resonance characteristics
NL8201344A (nl) *	1982-03-31	1983-10-17	Philips Nv	Digitale toonregelinrichting.
US4489416A (en) *	1983-03-18	1984-12-18	Rixon, Inc.	Equalization system for modems in a polled arrangement
FR2555777A1 (fr) *	1983-10-03	1985-05-31	Moulin Andre	Processeur numerique de filtrage
FR2552904A1 (fr) *	1983-10-03	1985-04-05	Moulin Andre	Processeur de calculs
US4803647A (en) *	1986-05-30	1989-02-07	Rca Licensing Corporation	Sampled data audio tone control apparatus
US4809208A (en) *	1987-04-03	1989-02-28	Tektronix, Inc.	Programmable multistage digital filter
GB2209648B (en) *	1987-09-10	1991-10-23	Ncr Co	Modem communication system having main and secondary channels
US5586068A (en) *	1993-12-08	1996-12-17	Terayon Corporation	Adaptive electronic filter
US20020049799A1 (en) *	2000-10-24	2002-04-25	Minsheng Wang	Parallel implementation for digital infinite impulse response filter
AU2002361660A1 (en) *	2001-12-14	2003-06-30	Graphic Packaging Corporation	Packages, blanks for making packages and associated methods and apparatus

1970
- 1970-12-21 US US99747A patent/US3706076A/en not_active Expired - Lifetime
1971
- 1971-07-30 CA CA119539A patent/CA937297A/en not_active Expired
- 1971-09-14 SE SE11658/71A patent/SE364832B/xx unknown
- 1971-09-17 GB GB4350471A patent/GB1355107A/en not_active Expired
- 1971-09-20 FR FR7133785A patent/FR2119309A5/fr not_active Expired
- 1971-09-20 IT IT70095/71A patent/IT939838B/it active
- 1971-09-20 BE BE772813A patent/BE772813A/xx unknown
- 1971-09-20 NL NL7112895A patent/NL7112895A/xx not_active Application Discontinuation
- 1971-09-21 DE DE19712146982 patent/DE2146982A1/de not_active Withdrawn
- 1971-09-21 JP JP7307571A patent/JPS5312145B1/ja active Pending

Also Published As

Publication number	Publication date
FR2119309A5 (it)	1972-08-04
GB1355107A (en)	1974-06-05
JPS5312145B1 (it)	1978-04-27
SE364832B (it)	1974-03-04
DE2146982A1 (de)	1972-07-13
CA937297A (en)	1973-11-20
US3706076A (en)	1972-12-12
BE772813A (fr)	1972-01-17
NL7112895A (it)	1972-06-23

Publication	Publication Date	Title
DK131969C (da)	1976-02-23	Filterenhed til drikkevarefremstilling
CH515014A (fr)	1971-11-15	Matelas
CH501422A (de)	1971-01-15	Filter
AR212230A1 (es)	1978-06-15	Mejoras en un filtro prensa-tubular
ZA715873B (en)	1972-05-31	Filter
ZA707688B (en)	1971-08-25	Mattress construction
CH497910A (de)	1970-10-31	Filtrietverfahren
CH517473A (de)	1972-01-15	Matratze
CH500748A (de)	1970-12-31	Rückspülbarer Filter
AT316247B (de)	1974-06-25	Mehrfachschneckengetriebe
IE33126B1 (en)	1974-03-20	New pyrazolodiazepinone compounds and methods for their production
BE747829A (fr)	1970-09-23	Elements filtrants
IL37631A0 (en)	1971-11-29	Filtering units
BE752094A (fr)	1970-12-01	Element de filtration
IT957995B (it)	1973-10-20	Perfezionamento negli orologi
YU32756B (en)	1975-06-30	Uredaj za automatsku izradu armiranih gradevinskih nosaca od niza profilisanih opeka
TR17365A (tr)	1975-03-24	Filtreler
YU225170A (en)	1974-10-31	Prefabrikovani samonoseci gradevinski elementi od armiranog betona
ZA712914B (en)	1972-12-27	Filters
FI42449C (fi)	1970-08-10	Satunnaisdigitalinen koodausmenetelmä
FI51226C (fi)	1976-11-10	Rakosihdillä varustettu lajittelukone
AT302370B (de)	1972-10-10	Anschwemmfilter
PH13601A (en)	1980-08-05	Filters
GB1443782A (en)	1976-07-28	Filter circuits
YU33094B (en)	1976-04-30	Uredaj za blokiranje upravljaca vozila za zastitu motornih vozila od krade