GB2008359B - Audio teleconferecing - Google Patents
Audio teleconferecingInfo
- Publication number
- GB2008359B GB2008359B GB7840777A GB7840777A GB2008359B GB 2008359 B GB2008359 B GB 2008359B GB 7840777 A GB7840777 A GB 7840777A GB 7840777 A GB7840777 A GB 7840777A GB 2008359 B GB2008359 B GB 2008359B
- Authority
- GB
- United Kingdom
- Prior art keywords
- teleconferecing
- audio
- audio teleconferecing
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Multimedia (AREA)
- Circuit For Audible Band Transducer (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7840777A GB2008359B (en) | 1977-11-03 | 1978-10-17 | Audio teleconferecing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4577577 | 1977-11-03 | ||
GB7840777A GB2008359B (en) | 1977-11-03 | 1978-10-17 | Audio teleconferecing |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2008359A GB2008359A (en) | 1979-05-31 |
GB2008359B true GB2008359B (en) | 1982-05-12 |
Family
ID=26265665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7840777A Expired GB2008359B (en) | 1977-11-03 | 1978-10-17 | Audio teleconferecing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2008359B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4311874A (en) * | 1979-12-17 | 1982-01-19 | Bell Telephone Laboratories, Incorporated | Teleconference microphone arrays |
FR2617660B1 (en) * | 1987-06-30 | 1990-06-08 | Larvor Rene | SOUND RECORDING AND RESTITUTION DEVICE, PARTICULARLY FOR AUDIO-CONFERENCES |
-
1978
- 1978-10-17 GB GB7840777A patent/GB2008359B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2008359A (en) | 1979-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19951017 |