GB2340335A - Telephone call indicator - Google Patents
Telephone call indicator Download PDFInfo
- Publication number
- GB2340335A GB2340335A GB9816561A GB9816561A GB2340335A GB 2340335 A GB2340335 A GB 2340335A GB 9816561 A GB9816561 A GB 9816561A GB 9816561 A GB9816561 A GB 9816561A GB 2340335 A GB2340335 A GB 2340335A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indicator
- telephone
- ringing
- detector
- infra red
- 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- Withdrawn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
- 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)
- Mobile Radio Communication Systems (AREA)
Description
2340335 TELEPHONE CALL IMICATOR This invention relates to telephones.
Most teleuhones announce an incoming call by means of an audible tone, traditionally a bell ringing- Where several telephones are together, identification of which is ringing can prove difficult.
Against this background the invention provides a telephone call indicator, comprising an acoustic or magnetic transducer responsive to ringing signals emitted from or applied to the telephone respectively, detector means responsive to the sensor for detecting ringing and indicator means resDonsive ta the detector means for indicatina that ringing is detected.
Preferably, the indicator is visual, mechanical or aural. Thus when oneof a group of telephones rings, which one can be identified from, for example, the visual indication.
In one example the indicator is remote and coupled to the detector by a radio or infra red link comprising an infra red transmitter at the detector and an infra red receiver at the indicator. That allows a person to know that the telephone is ringing even when remote from the telephone.
Examples of the invention will now be described, by way of example, with reference to the accompanying block 2:7 diagram.
Referring to the drawing, the telephone call indicator is placed on or close to a telephone so that a sensor 2 can respond to ringing. The sensor may be an acoustic or a magnetic pick up- In the former case the sensor responds to acoustic ringing signals emitted by the telephone. In the latter case the magnetic 'Dick up contains a coil which couples with circuitry in the telephone, acting as a transformer to respond to electrical ringing signals applied to the telephone. In this case the telephone's ringer may be switched off.
Signals from the sensor 2 are amplified in a preamplifier 4 where the sensitivity of the apparatus can be adjusted. The output of +the preamplifier is filtered in filter 6 so as to exclude frequencies outside the frequency spectrum of the acoustic ringing signals emitted by the telephone's ringer or of the electrical ringing signals applied to the telephone.
""he f"iltered siarnals are amplified by amplifier 8 and the amplified signals are output to a ringing detector 10 which is in the form of a trigger circuit. When the output signal from the amplifier 8 is of sufficient magnitude, the zrigger circuit gives an output signal to operate an indicator 12. The indicator 12 may be one or more LED's which when illuminated indicate that the telephone is ringing. Other visual indicators include lamps, mechanically actuated indicators etc. A mechanical 3 indi--ato-- may be provided, e.g. a vibrator. A speech announcement may be given by, for example, digitally recording a message and playing that when ringing is detected.
In any of those cases, but especially in the case of a vibrator, the indicator may be 2inked to the detector 10 by a radio or infra red link. In that example, the apparatus situated at the telephone contains a radic or infra red transmitter and the indicator is associated with a radic or infra red receiver. The indicator can then be carried around by the telephone's user who will receive an indication that the telephone is ringing even when s/he is remote from the telephone.
4
Claims (3)
1. A telephone call indicator, comprising an acoustic or magnetic transducer responsive to ringing signals emitted from or applied to the telephone respectively, detector means responsive to the sensor for detecting ringing and indicator means responsive to the detector means for indicating that ringing is detected.
2. An indicator as claimed in claim 1 wherein the indicator is visual, mechanical or aural.
3. An indicator as claimed in claim 1 or 2, wherein the indicator is remote and coupled to the detector by a radio or infra red link comprising an infra red t"ransmitter at the detector and an infra red receiver at --he indicator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9816561A GB2340335A (en) | 1998-07-31 | 1998-07-31 | Telephone call indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9816561A GB2340335A (en) | 1998-07-31 | 1998-07-31 | Telephone call indicator |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9816561D0 GB9816561D0 (en) | 1998-09-30 |
GB2340335A true GB2340335A (en) | 2000-02-16 |
Family
ID=10836400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9816561A Withdrawn GB2340335A (en) | 1998-07-31 | 1998-07-31 | Telephone call indicator |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2340335A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2806861A1 (en) * | 2000-03-24 | 2001-09-28 | France Telecom | Received call indicator for mobile phone comprises desk receptacle with signal sensor, amplifier and loudspeaker |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2831125B1 (en) * | 1978-07-12 | 1979-10-25 | Bezet Werk Hermann Buchholz Gm | Process for the visual display of the telephone call and circuit for carrying out the process |
US4301335A (en) * | 1977-04-29 | 1981-11-17 | Reichle & De Massari | Visual telephone or other annuciator ringing indicator |
US4421953A (en) * | 1981-12-07 | 1983-12-20 | Northern Telecom Limited | Telephone tactile alert system |
EP0119163A2 (en) * | 1983-02-08 | 1984-09-19 | Langatronic Sa | Method and arrangement for information transmission via the low-voltage electrical power distribution network, and its use |
JPS6093867A (en) * | 1983-10-27 | 1985-05-25 | Nec Corp | Calling reception circuit |
EP0196371A2 (en) * | 1985-04-03 | 1986-10-08 | Robert Bosch Gmbh | Method for the wireless transmission of a call signal |
US4951311A (en) * | 1989-07-10 | 1990-08-21 | Sterr Kevin K | Telephone call indicator |
GB2235109A (en) * | 1989-08-11 | 1991-02-20 | Stc Plc | Telephone caller device |
-
1998
- 1998-07-31 GB GB9816561A patent/GB2340335A/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4301335A (en) * | 1977-04-29 | 1981-11-17 | Reichle & De Massari | Visual telephone or other annuciator ringing indicator |
DE2831125B1 (en) * | 1978-07-12 | 1979-10-25 | Bezet Werk Hermann Buchholz Gm | Process for the visual display of the telephone call and circuit for carrying out the process |
US4421953A (en) * | 1981-12-07 | 1983-12-20 | Northern Telecom Limited | Telephone tactile alert system |
EP0119163A2 (en) * | 1983-02-08 | 1984-09-19 | Langatronic Sa | Method and arrangement for information transmission via the low-voltage electrical power distribution network, and its use |
JPS6093867A (en) * | 1983-10-27 | 1985-05-25 | Nec Corp | Calling reception circuit |
EP0196371A2 (en) * | 1985-04-03 | 1986-10-08 | Robert Bosch Gmbh | Method for the wireless transmission of a call signal |
US4951311A (en) * | 1989-07-10 | 1990-08-21 | Sterr Kevin K | Telephone call indicator |
GB2235109A (en) * | 1989-08-11 | 1991-02-20 | Stc Plc | Telephone caller device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2806861A1 (en) * | 2000-03-24 | 2001-09-28 | France Telecom | Received call indicator for mobile phone comprises desk receptacle with signal sensor, amplifier and loudspeaker |
Also Published As
Publication number | Publication date |
---|---|
GB9816561D0 (en) | 1998-09-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5651070A (en) | Warning device programmable to be sensitive to preselected sound frequencies | |
CA1307829C (en) | Radio telephone apparatus | |
KR890000976B1 (en) | Portable device for monitoring local area | |
NO972269L (en) | Incoming call notification system | |
US5892817A (en) | Wireless system for alerting individual to incoming telephone call | |
US20090191921A1 (en) | Remote Annunciator System and Method for a Plurality of Wireless Handheld Devices | |
US4301335A (en) | Visual telephone or other annuciator ringing indicator | |
GB2340335A (en) | Telephone call indicator | |
GB2138616A (en) | Warning system for the deaf | |
JP5242935B2 (en) | Electronic sound reception notification system | |
US4683459A (en) | Alarm system test annunciator | |
US4962528A (en) | Beeper amplifier | |
WO1989004574A1 (en) | Telephone alerting system | |
JPH09139768A (en) | Tapping detector and telephone set with tapping detection function | |
JP2000245000A (en) | Hearing aid system | |
JPH0311979Y2 (en) | ||
KR200194328Y1 (en) | A transmitter and receiver of wireless calling system using originating signal of radio-frequency for all kind of restaurants | |
KR100267266B1 (en) | Calling-tone recordable a supplementary device of wireless communation terminal | |
KR200284840Y1 (en) | Order Management Equipment for Entertainment Business | |
KR200142519Y1 (en) | Automatic announcing apparatus in wireless telephone | |
JP3033786U (en) | Incoming alarm | |
JPS6093867A (en) | Calling reception circuit | |
JP2505165Y2 (en) | Telephone additional device | |
Hughes | Special devices for the hearing-handicapped patient | |
JPH0514454A (en) | Telephone set |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |