DK142097C - - Google Patents
Info
- Publication number
- DK142097C DK142097C DK487372A DK487372A DK142097C DK 142097 C DK142097 C DK 142097C DK 487372 A DK487372 A DK 487372A DK 487372 A DK487372 A DK 487372A DK 142097 C DK142097 C DK 142097C
- Authority
- DK
- Denmark
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
- H04B1/64—Volume compression or expansion arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
- H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Control Of Amplification And Gain Control (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7753271A JPS5215941B2 (cg-RX-API-DMAC7.html) | 1971-10-05 | 1971-10-05 | |
| JP7753271 | 1971-10-05 | ||
| JP3894172 | 1972-04-18 | ||
| JP3894172A JPS5245461B2 (cg-RX-API-DMAC7.html) | 1972-04-18 | 1972-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK142097B DK142097B (da) | 1980-08-25 |
| DK142097C true DK142097C (cg-RX-API-DMAC7.html) | 1981-01-19 |
Family
ID=26378251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK487372AA DK142097B (da) | 1971-10-05 | 1972-10-02 | Ekspansionskredsløb til et kompressions- og ekspansionsanlæg. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3798562A (cg-RX-API-DMAC7.html) |
| CA (1) | CA955857A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2248831C3 (cg-RX-API-DMAC7.html) |
| DK (1) | DK142097B (cg-RX-API-DMAC7.html) |
| GB (1) | GB1401336A (cg-RX-API-DMAC7.html) |
| NL (1) | NL7213374A (cg-RX-API-DMAC7.html) |
| SE (1) | SE378722B (cg-RX-API-DMAC7.html) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250646B2 (cg-RX-API-DMAC7.html) * | 1972-10-16 | 1977-12-26 | ||
| US3934202A (en) * | 1974-03-25 | 1976-01-20 | Telesonic Systems, Inc. | Tour guide system including means for noise and crosstalk suppression |
| US3980964A (en) * | 1974-05-20 | 1976-09-14 | Grodinsky Robert M | Noise reduction circuit |
| US3902131A (en) * | 1974-09-06 | 1975-08-26 | Quadracast Systems | Tandem audio dynamic range expander |
| JPS5327010A (en) * | 1976-08-25 | 1978-03-13 | Sony Corp | Signal tran smitter |
| US4101849A (en) * | 1976-11-08 | 1978-07-18 | Dbx, Inc. | Adaptive filter |
| US4376916A (en) * | 1980-05-29 | 1983-03-15 | Cbs Inc. | Signal compression and expansion system |
| JPS5744338A (en) * | 1980-08-29 | 1982-03-12 | Victor Co Of Japan Ltd | Noise reduction device |
| JPS5868325A (ja) * | 1981-10-19 | 1983-04-23 | Victor Co Of Japan Ltd | 雑音低減装置 |
| WO1988001112A1 (fr) * | 1986-08-09 | 1988-02-11 | Deutsche Thomson-Brandt Gmbh | Circuit de compression et d'expansion sonore dans le trajet d'un signal utile |
| CA2003755C (en) * | 1989-11-23 | 2000-02-15 | Gary Rogalski | Audio signal expander apparatus |
| GB2264598B (en) * | 1992-02-26 | 1995-10-04 | Pioneer Electronic Corp | Audio signal processing system |
| US6172561B1 (en) | 1999-09-16 | 2001-01-09 | Philips Electronics N.A. Corp. | High volume expander circuit |
| US8223540B2 (en) * | 2007-02-02 | 2012-07-17 | Macronix International Co., Ltd. | Method and apparatus for double-sided biasing of nonvolatile memory |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2358045A (en) * | 1942-08-06 | 1944-09-12 | Bell Telephone Labor Inc | Noise reduction in signal transmission systems |
| US3452290A (en) * | 1967-09-12 | 1969-06-24 | Automatic Elect Lab | Low distortion variolosser |
| US3631365A (en) * | 1968-11-01 | 1971-12-28 | Dolby Laboratories Inc | Signal compressors and expanders |
-
1972
- 1972-09-29 GB GB4516172A patent/GB1401336A/en not_active Expired
- 1972-10-02 US US00294356A patent/US3798562A/en not_active Expired - Lifetime
- 1972-10-02 DK DK487372AA patent/DK142097B/da unknown
- 1972-10-03 CA CA153,124A patent/CA955857A/en not_active Expired
- 1972-10-03 NL NL7213374A patent/NL7213374A/xx not_active Application Discontinuation
- 1972-10-04 SE SE7212780A patent/SE378722B/xx unknown
- 1972-10-05 DE DE2248831A patent/DE2248831C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2248831C3 (de) | 1979-09-06 |
| CA955857A (en) | 1974-10-08 |
| DE2248831B2 (de) | 1973-12-13 |
| DK142097B (da) | 1980-08-25 |
| US3798562A (en) | 1974-03-19 |
| DE2248831A1 (de) | 1973-04-12 |
| SE378722B (cg-RX-API-DMAC7.html) | 1975-09-08 |
| NL7213374A (cg-RX-API-DMAC7.html) | 1973-04-09 |
| GB1401336A (en) | 1975-07-16 |