SE440171B - Detektor for detektering av en deltamodulerad signal - Google Patents
Detektor for detektering av en deltamodulerad signalInfo
- Publication number
- SE440171B SE440171B SE7808841A SE7808841A SE440171B SE 440171 B SE440171 B SE 440171B SE 7808841 A SE7808841 A SE 7808841A SE 7808841 A SE7808841 A SE 7808841A SE 440171 B SE440171 B SE 440171B
- Authority
- SE
- Sweden
- Prior art keywords
- signal
- logic
- count value
- detector
- decoder
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 description 11
- 230000005236 sound signal Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/830,256 US4176321A (en) | 1977-09-02 | 1977-09-02 | Delta modulation detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7808841L SE7808841L (sv) | 1979-03-03 |
| SE440171B true SE440171B (sv) | 1985-07-15 |
Family
ID=25256629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7808841A SE440171B (sv) | 1977-09-02 | 1978-08-22 | Detektor for detektering av en deltamodulerad signal |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4176321A (en, 2012) |
| JP (1) | JPS5447563A (en, 2012) |
| CA (1) | CA1134044A (en, 2012) |
| CH (1) | CH646022A5 (en, 2012) |
| DE (1) | DE2837868A1 (en, 2012) |
| NL (1) | NL7808564A (en, 2012) |
| SE (1) | SE440171B (en, 2012) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0138485B1 (en) * | 1983-09-29 | 1990-04-04 | Nippon Telegraph And Telephone Corporation | Radio reception system for a phase modulation signal |
| EP0139496B1 (en) * | 1983-09-30 | 1990-05-23 | Nippon Telegraph And Telephone Corporation | A radio transmission system for a phase modulation signal |
| US4677434A (en) * | 1984-10-17 | 1987-06-30 | Lotus Information Network Corp. | Access control system for transmitting data from a central station to a plurality of receiving stations and method therefor |
| US4882751A (en) * | 1986-10-31 | 1989-11-21 | Motorola, Inc. | Secure trunked communications system |
| US5347542A (en) * | 1991-06-28 | 1994-09-13 | Motorola, Inc. | Demodulation selection for a communication signal |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839717A (en) * | 1972-01-28 | 1974-10-01 | Identification Co Inc | Communication apparatus for communicating between a first and a second object |
| JPS4948258A (en, 2012) * | 1972-07-21 | 1974-05-10 | ||
| US3852671A (en) * | 1973-06-25 | 1974-12-03 | Gte Sylvania Inc | Communication receiving apparatus employing several samples of baseboard noise to detect an incoming signal and turn on the apparatus |
| US4045814A (en) * | 1973-08-15 | 1977-08-30 | System Development Corporation | Method and apparatus for scrambling and unscrambling communication signals |
| JPS5157157A (en) * | 1974-11-15 | 1976-05-19 | Hitachi Ltd | ad henkanhoshiki |
| JPS5831525B2 (ja) * | 1975-05-02 | 1983-07-06 | カブシキガイシヤ テラオカセイコウシヨ | Ａ−ｄ ヘンカンキニオケルヨミトリソクドイジヨウケンシユツホウシキ |
-
1977
- 1977-09-02 US US05/830,256 patent/US4176321A/en not_active Expired - Lifetime
-
1978
- 1978-07-11 CA CA307,171A patent/CA1134044A/en not_active Expired
- 1978-08-18 NL NL7808564A patent/NL7808564A/xx not_active Application Discontinuation
- 1978-08-22 SE SE7808841A patent/SE440171B/sv not_active IP Right Cessation
- 1978-08-26 JP JP10432078A patent/JPS5447563A/ja active Granted
- 1978-08-30 DE DE19782837868 patent/DE2837868A1/de active Granted
- 1978-08-31 CH CH915778A patent/CH646022A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2837868A1 (de) | 1979-03-22 |
| SE7808841L (sv) | 1979-03-03 |
| JPS6224972B2 (en, 2012) | 1987-06-01 |
| DE2837868C2 (en, 2012) | 1988-04-28 |
| CA1134044A (en) | 1982-10-19 |
| JPS5447563A (en) | 1979-04-14 |
| CH646022A5 (de) | 1984-10-31 |
| NL7808564A (nl) | 1979-03-06 |
| US4176321A (en) | 1979-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 7808841-6 Effective date: 19930307 Format of ref document f/p: F |