GB8810882D0 - Hands-free telephone arrangement - Google Patents
Hands-free telephone arrangementInfo
- Publication number
- GB8810882D0 GB8810882D0 GB888810882A GB8810882A GB8810882D0 GB 8810882 D0 GB8810882 D0 GB 8810882D0 GB 888810882 A GB888810882 A GB 888810882A GB 8810882 A GB8810882 A GB 8810882A GB 8810882 D0 GB8810882 D0 GB 8810882D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- hands
- free telephone
- telephone arrangement
- arrangement
- free
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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)
- Telephone Function (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8810882A GB2218302A (en) | 1988-05-07 | 1988-05-07 | Hands-free telephone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8810882A GB2218302A (en) | 1988-05-07 | 1988-05-07 | Hands-free telephone |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8810882D0 true GB8810882D0 (en) | 1988-06-08 |
GB2218302A GB2218302A (en) | 1989-11-08 |
Family
ID=10636553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8810882A Withdrawn GB2218302A (en) | 1988-05-07 | 1988-05-07 | Hands-free telephone |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2218302A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2770352B1 (en) * | 1997-10-27 | 1999-11-19 | Sagem | DEVICE FOR IMPLEMENTING HANDS-FREE MODE OF A TELEPHONE SET |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1132378A (en) * | 1966-07-02 | 1968-10-30 | Malcolm Neville Shute | Improvements in or relating to telephone equipment |
DE2605086B2 (en) * | 1976-02-10 | 1979-10-04 | Elmeg Elektro-Mechanik Gmbh, 3150 Peine | Hands-free facility for emergency telephones |
-
1988
- 1988-05-07 GB GB8810882A patent/GB2218302A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2218302A (en) | 1989-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |