JPS57502086A - - Google Patents
Info
- Publication number
- JPS57502086A JPS57502086A JP57500129A JP50012982A JPS57502086A JP S57502086 A JPS57502086 A JP S57502086A JP 57500129 A JP57500129 A JP 57500129A JP 50012982 A JP50012982 A JP 50012982A JP S57502086 A JPS57502086 A JP S57502086A
- Authority
- JP
- Japan
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/02—Amplitude modulation, i.e. PAM
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/02—Delta modulation, i.e. one-bit differential modulation
- H03M3/022—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM]
- H03M3/024—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM] using syllabic companding, e.g. continuously variable slope delta modulation [CVSD]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Analogue/Digital Conversion (AREA)
- Networks Using Active Elements (AREA)
- Electrophonic Musical Instruments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/221,189 US4406010A (en) | 1980-12-30 | 1980-12-30 | Receiver for CVSD modulation with integral filtering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57502086A true JPS57502086A (https=) | 1982-11-18 |
| JPH0211183B2 JPH0211183B2 (https=) | 1990-03-13 |
Family
ID=22826742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57500129A Expired - Lifetime JPH0211183B2 (https=) | 1980-12-30 | 1981-11-16 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4406010A (https=) |
| EP (1) | EP0067824B1 (https=) |
| JP (1) | JPH0211183B2 (https=) |
| KR (1) | KR880000757B1 (https=) |
| AU (1) | AU549044B2 (https=) |
| BR (1) | BR8108940A (https=) |
| CA (1) | CA1177965A (https=) |
| WO (1) | WO1982002462A1 (https=) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3857111A (en) * | 1973-03-20 | 1974-12-24 | Univ Sherbrooke | Syllabic adaptative delta modulation system |
| US3878465A (en) * | 1972-12-15 | 1975-04-15 | Univ Sherbrooke | Instantaneous adaptative delta modulation system |
| US3899754A (en) * | 1974-05-09 | 1975-08-12 | Bell Telephone Labor Inc | Delta modulation and demodulation with syllabic companding |
| US4035724A (en) * | 1974-05-08 | 1977-07-12 | Universite De Sherbrooke | Digital converter from continuous variable slope delta modulation to pulse code modulation |
| US4264974A (en) * | 1979-12-17 | 1981-04-28 | International Business Machines Corporation | Optimized digital delta modulation compander having truncation effect error recovery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044306A (en) * | 1974-07-26 | 1977-08-23 | Universite De Snerbrooke | Digital converter from pulse code modulation to continuous variable slope delta modulation |
| US4151517A (en) * | 1977-02-14 | 1979-04-24 | Motorola, Inc. | Closed loop companding ratio control for continuously variable slope delta modulation |
| NL7801909A (nl) * | 1978-02-21 | 1979-08-23 | Philips Nv | Inrichting voor het decoderen van een met adap- tieve deltamodulatie gecodeerd signaal. |
-
1980
- 1980-12-30 US US06/221,189 patent/US4406010A/en not_active Expired - Lifetime
-
1981
- 1981-05-19 KR KR1019810001735A patent/KR880000757B1/ko not_active Expired
- 1981-11-16 JP JP57500129A patent/JPH0211183B2/ja not_active Expired - Lifetime
- 1981-11-16 BR BR8108940A patent/BR8108940A/pt not_active IP Right Cessation
- 1981-11-16 EP EP81903193A patent/EP0067824B1/en not_active Expired
- 1981-11-16 AU AU78988/81A patent/AU549044B2/en not_active Ceased
- 1981-11-16 WO PCT/US1981/001523 patent/WO1982002462A1/en not_active Ceased
- 1981-11-18 CA CA000390326A patent/CA1177965A/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3878465A (en) * | 1972-12-15 | 1975-04-15 | Univ Sherbrooke | Instantaneous adaptative delta modulation system |
| US3857111A (en) * | 1973-03-20 | 1974-12-24 | Univ Sherbrooke | Syllabic adaptative delta modulation system |
| US4035724A (en) * | 1974-05-08 | 1977-07-12 | Universite De Sherbrooke | Digital converter from continuous variable slope delta modulation to pulse code modulation |
| US3899754A (en) * | 1974-05-09 | 1975-08-12 | Bell Telephone Labor Inc | Delta modulation and demodulation with syllabic companding |
| US4264974A (en) * | 1979-12-17 | 1981-04-28 | International Business Machines Corporation | Optimized digital delta modulation compander having truncation effect error recovery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1982002462A1 (en) | 1982-07-22 |
| US4406010A (en) | 1983-09-20 |
| EP0067824B1 (en) | 1986-02-05 |
| AU549044B2 (en) | 1986-01-09 |
| CA1177965A (en) | 1984-11-13 |
| EP0067824A4 (en) | 1983-05-16 |
| BR8108940A (pt) | 1982-12-14 |
| KR830006998A (ko) | 1983-10-12 |
| KR880000757B1 (ko) | 1988-05-04 |
| EP0067824A1 (en) | 1982-12-29 |
| JPH0211183B2 (https=) | 1990-03-13 |