DK161355C - Interpolativ analog-digitalomsaetter til kredsloeb til taleoverfoering i en abonnentlinie - Google Patents
Interpolativ analog-digitalomsaetter til kredsloeb til taleoverfoering i en abonnentlinieInfo
- Publication number
- DK161355C DK161355C DK069982A DK69982A DK161355C DK 161355 C DK161355 C DK 161355C DK 069982 A DK069982 A DK 069982A DK 69982 A DK69982 A DK 69982A DK 161355 C DK161355 C DK 161355C
- Authority
- DK
- Denmark
- Prior art keywords
- circuit
- digital transmission
- analog digital
- voice transfer
- subscription line
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/16—Arrangements for preventing condensation, precipitation or mist formation, outside the cooler
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/04—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM]
-
- 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
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Analogue/Digital Conversion (AREA)
- Interface Circuits In Exchanges (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8000753 | 1980-06-18 | ||
PCT/US1980/000753 WO1981003725A1 (en) | 1980-06-18 | 1980-06-18 | Interpolative analog-to-digital converter for subscriber line audio processing circuit apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
DK69982A DK69982A (da) | 1982-02-17 |
DK161355B DK161355B (da) | 1991-06-24 |
DK161355C true DK161355C (da) | 1991-12-02 |
Family
ID=22154395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK069982A DK161355C (da) | 1980-06-18 | 1982-02-17 | Interpolativ analog-digitalomsaetter til kredsloeb til taleoverfoering i en abonnentlinie |
Country Status (20)
Country | Link |
---|---|
EP (1) | EP0054035B1 (da) |
JP (2) | JPS6345129B2 (da) |
KR (1) | KR870001097B1 (da) |
AR (1) | AR227189A1 (da) |
AU (1) | AU540017B2 (da) |
BR (1) | BR8009088A (da) |
CA (1) | CA1165028A (da) |
CH (1) | CH656268A5 (da) |
DE (1) | DE3071107D1 (da) |
DK (1) | DK161355C (da) |
ES (1) | ES501902A0 (da) |
FI (1) | FI72238C (da) |
FR (1) | FR2485298A1 (da) |
HU (1) | HU185434B (da) |
IE (1) | IE51777B1 (da) |
IN (1) | IN155720B (da) |
IT (1) | IT1189020B (da) |
NO (1) | NO156268C (da) |
WO (1) | WO1981003725A1 (da) |
YU (1) | YU46125B (da) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4718057A (en) | 1985-08-30 | 1988-01-05 | Advanced Micro Devices, Inc. | Streamlined digital signal processor |
GB2370201B (en) * | 2000-12-18 | 2004-07-21 | Ubinetics Ltd | Level allocation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3587087A (en) * | 1967-10-17 | 1971-06-22 | Rca Corp | Digital companding loop for monobit encoder/decoder |
US3550004A (en) * | 1968-12-13 | 1970-12-22 | Bell Telephone Labor Inc | Feedback coders using weighted code companding on strings of equal bits |
US3789199A (en) * | 1972-05-01 | 1974-01-29 | Bell Telephone Labor Inc | Signal mode converter and processor |
US3820111A (en) * | 1972-11-13 | 1974-06-25 | Bell Telephone Labor Inc | Analog-to-digital converter |
US3956700A (en) * | 1975-04-18 | 1976-05-11 | Bell Telephone Laboratories, Incorporated | Two-feedback-path delta modulation system with circuits for reducing pulse width modulation |
-
1980
- 1980-06-18 AU AU72205/81A patent/AU540017B2/en not_active Expired
- 1980-06-18 JP JP81501848A patent/JPS6345129B2/ja not_active Expired
- 1980-06-18 JP JP81501848A patent/JPS57500858A/ja active Pending
- 1980-06-18 WO PCT/US1980/000753 patent/WO1981003725A1/en active IP Right Grant
- 1980-06-18 BR BR8009088A patent/BR8009088A/pt not_active IP Right Cessation
- 1980-06-18 EP EP81901383A patent/EP0054035B1/en not_active Expired
- 1980-06-18 DE DE8181901383T patent/DE3071107D1/de not_active Expired
-
1981
- 1981-04-23 IN IN254/DEL/81A patent/IN155720B/en unknown
- 1981-05-06 ES ES501902A patent/ES501902A0/es active Granted
- 1981-05-18 KR KR1019810001701A patent/KR870001097B1/ko active
- 1981-05-28 FI FI811643A patent/FI72238C/fi not_active IP Right Cessation
- 1981-06-03 IE IE1224/81A patent/IE51777B1/en not_active IP Right Cessation
- 1981-06-11 YU YU146981A patent/YU46125B/sh unknown
- 1981-06-15 AR AR285714A patent/AR227189A1/es active
- 1981-06-17 FR FR8111938A patent/FR2485298A1/fr active Granted
- 1981-06-17 CA CA000379936A patent/CA1165028A/en not_active Expired
- 1981-06-17 HU HU811789A patent/HU185434B/hu not_active IP Right Cessation
- 1981-06-17 CH CH3986/81A patent/CH656268A5/de not_active IP Right Cessation
- 1981-06-18 IT IT22411/81A patent/IT1189020B/it active
-
1982
- 1982-02-17 DK DK069982A patent/DK161355C/da not_active IP Right Cessation
- 1982-02-18 NO NO82820514A patent/NO156268C/no unknown
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUP | Patent expired |