IT8119957A0 - Compressore di segnali/espansore di segnali commutabile. - Google Patents

Compressore di segnali/espansore di segnali commutabile.

Info

Publication number: IT8119957A0
Authority: IT; Italy
Prior art keywords: signal; switchable; expander; compressor; signal compressor
Prior art date: 1980-05-19

Application number

IT8119957A

Other languages

English (en)

Other versions

IT1135612B (it

Inventor

Sato Tetsuo

Kominami Yasuo

Ohkubo Yuichi

Original Assignee

Hitachi 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.)

1980-05-19

Filing date

1981-02-24

Publication date

1981-02-24

1980-05-19 Priority claimed from JP6538280A external-priority patent/JPS56162521A/ja

1980-05-19 Priority claimed from JP6538480A external-priority patent/JPS56162522A/ja

1981-02-24 Application filed by Hitachi Ltd filed Critical Hitachi Ltd

1981-02-24 Publication of IT8119957A0 publication Critical patent/IT8119957A0/it

1986-08-27 Application granted granted Critical

1986-08-27 Publication of IT1135612B publication Critical patent/IT1135612B/it

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

IT19957/81A 1980-05-19 1981-02-24 Compressore di segnali/espansore di segnali commutabile IT1135612B (it)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP6538280A JPS56162521A (en)	1980-05-19	1980-05-19	Switching type signal compressor and signal expander
JP6538480A JPS56162522A (en)	1980-05-19	1980-05-19	Switching type signal compressor and signal expander

Publications (2)

Publication Number	Publication Date
IT8119957A0 true IT8119957A0 (it)	1981-02-24
IT1135612B IT1135612B (it)	1986-08-27

Family

ID=26406529

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT19957/81A IT1135612B (it)	1980-05-19	1981-02-24	Compressore di segnali/espansore di segnali commutabile

Country Status (7)

Country	Link
US (1)	US4412189A (it)
DE (1)	DE3102945A1 (it)
GB (1)	GB2076263B (it)
HK (1)	HK38785A (it)
IT (1)	IT1135612B (it)
MY (1)	MY8500847A (it)
SG (1)	SG62684G (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1188384A (en) *	1981-12-29	1985-06-04	Masayuki Katakura	Noise reduction circuit
US4760602A (en) *	1986-10-21	1988-07-26	Rca Licensing Corporation	Variable preemphasis/deemphasis network
US4764967A (en) *	1986-10-27	1988-08-16	Rca Licensing Corporation	Tone control system for sampled data signals
US6597301B2 (en)	2001-10-03	2003-07-22	Shure Incorporated	Apparatus and method for level-dependent companding for wireless audio noise reduction

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3729693A (en) *	1971-08-02	1973-04-24	R Dolby	Compressor/expander switching methods and apparatus

1981
- 1981-01-29 DE DE19813102945 patent/DE3102945A1/de not_active Withdrawn
- 1981-02-24 IT IT19957/81A patent/IT1135612B/it active
- 1981-03-05 GB GB8106985A patent/GB2076263B/en not_active Expired
- 1981-05-12 US US06/262,814 patent/US4412189A/en not_active Expired - Fee Related
1984
- 1984-09-01 SG SG626/84A patent/SG62684G/en unknown
1985
- 1985-05-16 HK HK387/85A patent/HK38785A/xx unknown
- 1985-12-30 MY MY847/85A patent/MY8500847A/xx unknown

Also Published As

Publication number	Publication date
MY8500847A (en)	1985-12-31
GB2076263B (en)	1984-03-28
HK38785A (en)	1985-05-24
DE3102945A1 (de)	1981-12-24
GB2076263A (en)	1981-11-25
IT1135612B (it)	1986-08-27
US4412189A (en)	1983-10-25
SG62684G (en)	1985-03-15

Similar Documents

Publication	Publication Date	Title
IT8124129A0 (it)	1981-09-24	Compressore centrifugo.
IT1135224B (it)	1986-08-20	Ricevitore di schedatura
DE3381977D1 (de)	1990-12-06	Verdampfer.
IT8119073A0 (it)	1981-01-09	Espanso inorganico.
FI843512L (fi)	1985-03-30	Projektil.
IT8119555A0 (it)	1981-02-06	Polietere-uretani espansi.
AT374960B (de)	1984-06-25	Rastenwerk
IT8119968A0 (it)	1981-02-25	Dispositivo di raffreddamento.
IT8321451A0 (it)	1983-06-03	Impianto frigorifero.
NO811272L (no)	1981-10-19	Kjoele- eller fryseapparat.
IT8119957A0 (it)	1981-02-24	Compressore di segnali/espansore di segnali commutabile.
IT8020636A0 (it)	1980-03-14	Compressore friforifero.
BE890953A (fr)	1982-05-03	Compresseur
IT8319062A0 (it)	1983-01-11	Frigorifero.
NO155739C (no)	1987-05-27	Ekspansjonsplugg.
IT8123090A0 (it)	1981-07-23	Propulsore compatto.
DE3483077D1 (de)	1990-10-04	Kuehlfalle.
AT386304B (de)	1988-08-10	Signalkompressor- und expander
IT8124131A0 (it)	1981-09-24	Compressore centrifugo.
IT8125956A0 (it)	1981-12-31	Espansore di segnali.
NO152859C (no)	1985-11-27	Mottaker.
NO151435C (no)	1986-07-02	Fryse- eller kjoeleanlegg.
DE3481537D1 (de)	1990-04-12	Verdichter.
IT8223595A0 (it)	1982-10-04	Frigorifero.
IT8125027A0 (it)	1981-11-12	Compressore munito di gruppo refrigerante.