NL251071A - - Google Patents
Info
- Publication number
- NL251071A NL251071A NL251071DA NL251071A NL 251071 A NL251071 A NL 251071A NL 251071D A NL251071D A NL 251071DA NL 251071 A NL251071 A NL 251071A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE422159 | 1959-04-30 | ||
| SE840959 | 1959-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL251071A true NL251071A (ja) |
Family
ID=26654502
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL134704D NL134704C (ja) | 1959-04-30 | ||
| NL251071D NL251071A (ja) | 1959-04-30 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL134704D NL134704C (ja) | 1959-04-30 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3112369A (ja) |
| BE (1) | BE590059A (ja) |
| DE (1) | DE1263860B (ja) |
| GB (1) | GB947767A (ja) |
| NL (2) | NL251071A (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE583834A (ja) * | 1961-11-03 | |||
| US3542956A (en) * | 1967-05-31 | 1970-11-24 | Communications Satellite Corp | Pcm telephone communication system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL95301C (ja) * | 1953-09-28 | |||
| US2927962A (en) * | 1954-04-26 | 1960-03-08 | Bell Telephone Labor Inc | Transmission systems employing quantization |
| BE562956A (ja) * | 1956-12-05 | |||
| US2986602A (en) * | 1958-10-07 | 1961-05-30 | Gen Dynamics Corp | Multiplex communication system |
-
0
- NL NL134704D patent/NL134704C/xx active
- DE DENDAT1263860D patent/DE1263860B/de active Pending
- NL NL251071D patent/NL251071A/xx unknown
-
1960
- 1960-04-14 US US22153A patent/US3112369A/en not_active Expired - Lifetime
- 1960-04-22 BE BE590059A patent/BE590059A/fr unknown
- 1960-05-02 GB GB15382/60A patent/GB947767A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL134704C (ja) | |
| BE590059A (fr) | 1960-08-16 |
| US3112369A (en) | 1963-11-26 |
| GB947767A (en) | 1964-01-29 |
| DE1263860B (de) | 1968-03-21 |