GB2434051B - A device for picking up/producing audio signals - Google Patents
A device for picking up/producing audio signalsInfo
- Publication number
- GB2434051B GB2434051B GB0625863A GB0625863A GB2434051B GB 2434051 B GB2434051 B GB 2434051B GB 0625863 A GB0625863 A GB 0625863A GB 0625863 A GB0625863 A GB 0625863A GB 2434051 B GB2434051 B GB 2434051B
- Authority
- GB
- United Kingdom
- Prior art keywords
- picking
- audio signals
- producing audio
- producing
- signals
- 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 - Lifetime
Links
- 230000005236 sound signal Effects 0.000 title 1
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
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- 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
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
-
- 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
- H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
-
- 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
- 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
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
-
- 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
- H04R1/46—Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
-
- 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
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/107—Monophonic and stereophonic headphones with microphone for two-way hands free communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/13—Hearing devices using bone conduction transducers
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003119751 DE10319751A1 (en) | 2003-04-30 | 2003-04-30 | Headset used by person in vehicle, has adder combines air-borne noise and audio signals picked up by microphones |
DE2003157065 DE10357065A1 (en) | 2003-12-04 | 2003-12-04 | Headset used by person in vehicle, has adder combines air-borne noise and audio signals picked up by microphones |
GB0409583A GB2401278B (en) | 2003-04-30 | 2004-04-29 | A device for picking up/reproducing audio signals |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0625863D0 GB0625863D0 (en) | 2007-02-07 |
GB2434051A GB2434051A (en) | 2007-07-11 |
GB2434051B true GB2434051B (en) | 2007-10-31 |
Family
ID=38235206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0625863A Expired - Lifetime GB2434051B (en) | 2003-04-30 | 2006-12-22 | A device for picking up/producing audio signals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2434051B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111785240A (en) * | 2020-08-03 | 2020-10-16 | 上海全景医学影像诊断中心有限公司 | Anti-phase interference filter active wave protection device for PET-MR working noise |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103348686B (en) | 2011-02-10 | 2016-04-13 | 杜比实验室特许公司 | For the system and method that wind detects and suppresses |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0756407A2 (en) * | 1995-07-24 | 1997-01-29 | Matsushita Electric Industrial Co., Ltd. | Noise controlled type handset |
US5625884A (en) * | 1994-06-08 | 1997-04-29 | Lucent Technologies Inc. | Global paging with reverse virtual call setup in wireless personal communications |
JPH118667A (en) * | 1997-06-17 | 1999-01-12 | Nec Home Electron Ltd | Portable communication equipment |
-
2006
- 2006-12-22 GB GB0625863A patent/GB2434051B/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5625884A (en) * | 1994-06-08 | 1997-04-29 | Lucent Technologies Inc. | Global paging with reverse virtual call setup in wireless personal communications |
EP0756407A2 (en) * | 1995-07-24 | 1997-01-29 | Matsushita Electric Industrial Co., Ltd. | Noise controlled type handset |
JPH118667A (en) * | 1997-06-17 | 1999-01-12 | Nec Home Electron Ltd | Portable communication equipment |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111785240A (en) * | 2020-08-03 | 2020-10-16 | 上海全景医学影像诊断中心有限公司 | Anti-phase interference filter active wave protection device for PET-MR working noise |
CN111785240B (en) * | 2020-08-03 | 2021-04-09 | 上海全景医学影像诊断中心有限公司 | Anti-phase interference filter active wave protection device for PET-MR working noise |
Also Published As
Publication number | Publication date |
---|---|
GB2434051A (en) | 2007-07-11 |
GB0625863D0 (en) | 2007-02-07 |
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