GB8523334D0 - Acoustic coupler - Google Patents
Acoustic couplerInfo
- Publication number
- GB8523334D0 GB8523334D0 GB858523334A GB8523334A GB8523334D0 GB 8523334 D0 GB8523334 D0 GB 8523334D0 GB 858523334 A GB858523334 A GB 858523334A GB 8523334 A GB8523334 A GB 8523334A GB 8523334 D0 GB8523334 D0 GB 8523334D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- acoustic coupler
- coupler
- acoustic
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
- H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
- H04M1/2155—Acoustic coupling
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08523334A GB2180721B (en) | 1985-09-20 | 1985-09-20 | Acoustic coupler for a telephone handset |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08523334A GB2180721B (en) | 1985-09-20 | 1985-09-20 | Acoustic coupler for a telephone handset |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8523334D0 true GB8523334D0 (en) | 1985-10-23 |
GB2180721A GB2180721A (en) | 1987-04-01 |
GB2180721B GB2180721B (en) | 1988-11-16 |
Family
ID=10585522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08523334A Expired GB2180721B (en) | 1985-09-20 | 1985-09-20 | Acoustic coupler for a telephone handset |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2180721B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE88602T1 (en) * | 1986-06-30 | 1993-05-15 | Anthony Forbes | TELEPHONE ON HOLD. |
US5995599A (en) * | 1998-08-07 | 1999-11-30 | Pocketscience, Inc. | Coupler for an acoustic coupled communications device |
WO2000056052A1 (en) * | 1999-03-15 | 2000-09-21 | Pocketscience, Inc. | Coupler for a communications device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3449522A (en) * | 1965-07-21 | 1969-06-10 | Magnavox Co | Acoustical coupler |
GB1232734A (en) * | 1968-11-12 | 1971-05-19 | ||
US3592966A (en) * | 1969-03-06 | 1971-07-13 | Xerox Corp | Acoustical coupling apparatus |
-
1985
- 1985-09-20 GB GB08523334A patent/GB2180721B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2180721B (en) | 1988-11-16 |
GB2180721A (en) | 1987-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930920 |