DK82475A - - Google Patents
Info
- Publication number
- DK82475A DK82475A DK82475*#A DK82475A DK82475A DK 82475 A DK82475 A DK 82475A DK 82475 A DK82475 A DK 82475A DK 82475 A DK82475 A DK 82475A
- Authority
- DK
- Denmark
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
- H04M15/30—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal the meter or calculation of charges not being controlled from an exchange
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
- H04M1/656—Recording arrangements for recording a message from the calling party for recording conversations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US447690A US3887771A (en) | 1974-03-04 | 1974-03-04 | Telephone adapter |
Publications (1)
Publication Number | Publication Date |
---|---|
DK82475A true DK82475A (ko) | 1975-11-03 |
Family
ID=23777345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK82475*#A DK82475A (ko) | 1974-03-04 | 1975-02-28 |
Country Status (14)
Country | Link |
---|---|
US (1) | US3887771A (ko) |
JP (1) | JPS50126106A (ko) |
AU (1) | AU7848375A (ko) |
BE (1) | BE826226A (ko) |
BR (1) | BR7501232A (ko) |
CA (1) | CA1022854A (ko) |
CH (1) | CH584991A5 (ko) |
DE (1) | DE2508387A1 (ko) |
DK (1) | DK82475A (ko) |
FR (1) | FR2263647B1 (ko) |
GB (1) | GB1493535A (ko) |
IT (1) | IT1029866B (ko) |
NL (1) | NL7502268A (ko) |
SE (1) | SE384959B (ko) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3928723A (en) * | 1973-07-02 | 1975-12-23 | Kazuo Kai | Telephone set with built-in loudspeaker |
US4115659A (en) * | 1977-06-16 | 1978-09-19 | Abram N. Spanel | Electroacoustical telephone adapter |
US4362905A (en) * | 1980-01-29 | 1982-12-07 | Nassar Ismail | Universal adapters for modular plug telephones |
US4326102A (en) * | 1980-02-04 | 1982-04-20 | Msi Data Corporation | Audio data transmission device with coupling device |
US5291541A (en) * | 1992-12-21 | 1994-03-01 | At&T Bell Laboratories | Coupling apparatus for telephone handsets |
US5613222A (en) * | 1994-06-06 | 1997-03-18 | The Creative Solutions Company | Cellular telephone headset for hand-free communication |
CA2169907C (en) * | 1996-02-20 | 1999-08-03 | Bill Yang | Hands-free phone converter |
TW200911773A (en) | 2007-06-12 | 2009-03-16 | Solvay | Epichlorohydrin, manufacturing process and use |
GB2483308A (en) * | 2010-09-06 | 2012-03-07 | Jack Kemp | Docking device with pickup coil coupled to electromagnetic transducer |
US10418955B2 (en) * | 2017-04-10 | 2019-09-17 | Language Line Services, Inc. | Process for acoustic amplification in a mobile device application |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US799659A (en) * | 1905-05-24 | 1905-09-19 | George Griffin Lewis | Ear-trumpet. |
US2609045A (en) * | 1951-04-16 | 1952-09-02 | Henry R Kaiser | Timer attachment for telephones |
US2987575A (en) * | 1955-11-10 | 1961-06-06 | Norman L Chalfin | Two way telephone handset amplifying system |
US3376390A (en) * | 1958-12-30 | 1968-04-02 | Hashimoto Kazuo | Telephone answering device |
US3512355A (en) * | 1967-10-26 | 1970-05-19 | Goldentone Electronics Inc | Telephone timing device |
-
1974
- 1974-03-04 US US447690A patent/US3887771A/en not_active Expired - Lifetime
-
1975
- 1975-02-24 CA CA220,794A patent/CA1022854A/en not_active Expired
- 1975-02-24 AU AU78483/75A patent/AU7848375A/en not_active Expired
- 1975-02-25 IT IT48347/75A patent/IT1029866B/it active
- 1975-02-26 NL NL7502268A patent/NL7502268A/xx not_active Application Discontinuation
- 1975-02-26 DE DE19752508387 patent/DE2508387A1/de active Pending
- 1975-02-28 FR FR7506320A patent/FR2263647B1/fr not_active Expired
- 1975-02-28 DK DK82475*#A patent/DK82475A/da unknown
- 1975-03-03 SE SE7502351A patent/SE384959B/xx unknown
- 1975-03-03 BR BR1232/75A patent/BR7501232A/pt unknown
- 1975-03-03 BE BE153947A patent/BE826226A/xx not_active IP Right Cessation
- 1975-03-04 CH CH271375A patent/CH584991A5/xx not_active IP Right Cessation
- 1975-03-04 JP JP50026420A patent/JPS50126106A/ja active Pending
- 1975-05-03 GB GB8680/75A patent/GB1493535A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BR7501232A (pt) | 1975-12-02 |
SE7502351L (ko) | 1975-09-05 |
JPS50126106A (ko) | 1975-10-03 |
BE826226A (fr) | 1975-09-03 |
NL7502268A (nl) | 1975-09-08 |
US3887771A (en) | 1975-06-03 |
AU7848375A (en) | 1976-08-26 |
FR2263647B1 (ko) | 1980-05-30 |
IT1029866B (it) | 1979-03-20 |
DE2508387A1 (de) | 1975-09-11 |
GB1493535A (en) | 1977-11-30 |
CH584991A5 (ko) | 1977-02-15 |
CA1022854A (en) | 1977-12-20 |
SE384959B (sv) | 1976-05-24 |
FR2263647A1 (ko) | 1975-10-03 |