JPS4839505B1 - - Google Patents
Info
- Publication number
- JPS4839505B1 JPS4839505B1 JP43055290A JP5529068A JPS4839505B1 JP S4839505 B1 JPS4839505 B1 JP S4839505B1 JP 43055290 A JP43055290 A JP 43055290A JP 5529068 A JP5529068 A JP 5529068A JP S4839505 B1 JPS4839505 B1 JP S4839505B1
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
- H04B14/062—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP43055290A JPS4839505B1 (ja) | 1968-08-06 | 1968-08-06 | |
GB38090/69A GB1237820A (en) | 1968-08-06 | 1969-07-29 | A high speed delta modulation system |
US847622A US3594509A (en) | 1968-08-06 | 1969-08-05 | Delta modulator apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP43055290A JPS4839505B1 (ja) | 1968-08-06 | 1968-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4839505B1 true JPS4839505B1 (ja) | 1973-11-24 |
Family
ID=12994436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP43055290A Pending JPS4839505B1 (ja) | 1968-08-06 | 1968-08-06 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3594509A (ja) |
JP (1) | JPS4839505B1 (ja) |
GB (1) | GB1237820A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50123912U (ja) * | 1974-03-26 | 1975-10-09 | ||
JPS557475U (ja) * | 1978-06-29 | 1980-01-18 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3681756A (en) * | 1970-04-23 | 1972-08-01 | Industrial Research Prod Inc | System for frequency modification of speech and other audio signals |
US3750024A (en) * | 1971-06-16 | 1973-07-31 | Itt Corp Nutley | Narrow band digital speech communication system |
FR2211169A5 (ja) * | 1972-12-15 | 1974-07-12 | Sle Citerel Lannion Elec | |
JPS52116103A (en) * | 1976-03-26 | 1977-09-29 | Kokusai Denshin Denwa Co Ltd | Multistage selection dpcm system |
IL70134A (en) * | 1983-11-04 | 1984-12-31 | Fibronics Ltd | Data communication system using unipolar pulses |
US5150120A (en) * | 1991-01-03 | 1992-09-22 | Harris Corp. | Multiplexed sigma-delta A/D converter |
US6104991A (en) * | 1998-02-27 | 2000-08-15 | Lucent Technologies, Inc. | Speech encoding and decoding system which modifies encoding and decoding characteristics based on an audio signal |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949505A (en) * | 1957-08-14 | 1960-08-16 | Bell Telephone Labor Inc | Reduced bandwith transmission system |
US3471648A (en) * | 1966-07-28 | 1969-10-07 | Bell Telephone Labor Inc | Vocoder utilizing companding to reduce background noise caused by quantizing errors |
NL151593B (nl) * | 1966-11-22 | 1976-11-15 | Philips Nv | Stelsel voor signaaloverdracht met behulp van pulsdeltamodulatie. |
-
1968
- 1968-08-06 JP JP43055290A patent/JPS4839505B1/ja active Pending
-
1969
- 1969-07-29 GB GB38090/69A patent/GB1237820A/en not_active Expired
- 1969-08-05 US US847622A patent/US3594509A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50123912U (ja) * | 1974-03-26 | 1975-10-09 | ||
JPS557475U (ja) * | 1978-06-29 | 1980-01-18 |
Also Published As
Publication number | Publication date |
---|---|
GB1237820A (en) | 1971-06-30 |
US3594509A (en) | 1971-07-20 |