PT85768A - Dispositivo de controlo de tonalidade de daodos amostrados - Google Patents
Dispositivo de controlo de tonalidade de daodos amostradosInfo
- Publication number
- PT85768A PT85768A PT85768A PT8576887A PT85768A PT 85768 A PT85768 A PT 85768A PT 85768 A PT85768 A PT 85768A PT 8576887 A PT8576887 A PT 8576887A PT 85768 A PT85768 A PT 85768A
- Authority
- PT
- Portugal
- Prior art keywords
- control device
- multiplier
- adder
- coupled
- differences
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/005—Tone control or bandwidth control in amplifiers of digital signals
-
- 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)
- Selective Calling Equipment (AREA)
- Electrophonic Musical Instruments (AREA)
- Complex Calculations (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Fire Alarms (AREA)
- Analogue/Digital Conversion (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Materials For Photolithography (AREA)
- Circuits Of Receivers In General (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/911,156 US4783756A (en) | 1986-09-24 | 1986-09-24 | Sampled data tone control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PT85768A true PT85768A (pt) | 1988-10-14 |
| PT85768B PT85768B (pt) | 1993-12-31 |
Family
ID=25429821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT85768A PT85768B (pt) | 1986-09-24 | 1987-09-22 | Dispositivo de controlo de tonalidade de daodos amostrados |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4783756A (pt) |
| EP (1) | EP0261848B1 (pt) |
| JP (1) | JPH0612863B2 (pt) |
| KR (1) | KR950008680B1 (pt) |
| AT (1) | ATE105658T1 (pt) |
| AU (1) | AU601489B2 (pt) |
| CA (1) | CA1277919C (pt) |
| DE (1) | DE3789794T2 (pt) |
| DK (1) | DK496087A (pt) |
| ES (1) | ES2051743T3 (pt) |
| FI (1) | FI91466C (pt) |
| NZ (1) | NZ221891A (pt) |
| PT (1) | PT85768B (pt) |
| ZA (1) | ZA877198B (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2293507B (en) * | 1994-09-20 | 1999-01-13 | Sony Uk Ltd | Digital signal processing |
| EP0935342A3 (en) * | 1998-01-15 | 2001-05-16 | Texas Instruments Incorporated | Improvements in or relating to filters |
| US6661900B1 (en) * | 1998-09-30 | 2003-12-09 | Texas Instruments Incorporated | Digital graphic equalizer control system and method |
| JP4839521B2 (ja) * | 2001-03-29 | 2011-12-21 | 大日本印刷株式会社 | 離型紙及びそれを用いて製造された合成皮革 |
| US10168293B2 (en) * | 2017-02-24 | 2019-01-01 | InventionXT LLC | Fluids leakage sensor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889108A (en) * | 1974-07-25 | 1975-06-10 | Us Navy | Adaptive low pass filter |
| US4242650A (en) * | 1978-11-13 | 1980-12-30 | Bell Telephone Laboratories, Incorporated | Active variable equalizer |
| JPS58156209A (ja) * | 1982-03-11 | 1983-09-17 | Sony Corp | ト−ンコントロ−ル回路 |
| NL8201344A (nl) * | 1982-03-31 | 1983-10-17 | Philips Nv | Digitale toonregelinrichting. |
| US4615038A (en) * | 1984-06-06 | 1986-09-30 | At&T Information Systems Inc. | Equalization of modulated data signals utilizing tentative and final decisions and replication of non-linear channel distortion |
-
1986
- 1986-09-24 US US06/911,156 patent/US4783756A/en not_active Expired - Lifetime
-
1987
- 1987-09-11 DE DE3789794T patent/DE3789794T2/de not_active Expired - Fee Related
- 1987-09-11 AT AT8787308058T patent/ATE105658T1/de not_active IP Right Cessation
- 1987-09-11 ES ES87308058T patent/ES2051743T3/es not_active Expired - Lifetime
- 1987-09-11 EP EP87308058A patent/EP0261848B1/en not_active Expired - Lifetime
- 1987-09-17 FI FI874066A patent/FI91466C/fi not_active IP Right Cessation
- 1987-09-18 CA CA000547289A patent/CA1277919C/en not_active Expired - Fee Related
- 1987-09-18 AU AU78647/87A patent/AU601489B2/en not_active Ceased
- 1987-09-22 DK DK496087A patent/DK496087A/da not_active Application Discontinuation
- 1987-09-22 NZ NZ221891A patent/NZ221891A/xx unknown
- 1987-09-22 JP JP62238586A patent/JPH0612863B2/ja not_active Expired - Fee Related
- 1987-09-22 PT PT85768A patent/PT85768B/pt not_active IP Right Cessation
- 1987-09-23 KR KR1019870010518A patent/KR950008680B1/ko not_active IP Right Cessation
- 1987-09-24 ZA ZA877198A patent/ZA877198B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI874066A (fi) | 1988-03-25 |
| FI874066A0 (fi) | 1987-09-17 |
| ZA877198B (en) | 1988-06-29 |
| FI91466C (fi) | 1994-06-27 |
| US4783756A (en) | 1988-11-08 |
| EP0261848A2 (en) | 1988-03-30 |
| EP0261848A3 (en) | 1990-09-26 |
| ES2051743T3 (es) | 1994-07-01 |
| NZ221891A (en) | 1989-04-26 |
| DE3789794D1 (de) | 1994-06-16 |
| DK496087A (da) | 1988-03-25 |
| AU7864787A (en) | 1988-03-31 |
| CA1277919C (en) | 1990-12-18 |
| KR880004463A (ko) | 1988-06-07 |
| FI91466B (fi) | 1994-03-15 |
| EP0261848B1 (en) | 1994-05-11 |
| DE3789794T2 (de) | 1994-12-08 |
| JPS6387008A (ja) | 1988-04-18 |
| ATE105658T1 (de) | 1994-05-15 |
| AU601489B2 (en) | 1990-09-13 |
| KR950008680B1 (ko) | 1995-08-04 |
| JPH0612863B2 (ja) | 1994-02-16 |
| PT85768B (pt) | 1993-12-31 |
| DK496087D0 (da) | 1987-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG3A | Patent granted, date of granting |
Effective date: 19930621 |
|
| MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20001231 |