WO2003009499A3 - Listening/anti eavesdropping device - Google Patents
Listening/anti eavesdropping device Download PDFInfo
- Publication number
- WO2003009499A3 WO2003009499A3 PCT/GB2002/003249 GB0203249W WO03009499A3 WO 2003009499 A3 WO2003009499 A3 WO 2003009499A3 GB 0203249 W GB0203249 W GB 0203249W WO 03009499 A3 WO03009499 A3 WO 03009499A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vibration
- transducer
- information
- selecting
- room
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002313529A AU2002313529A1 (en) | 2001-07-20 | 2002-07-16 | Listening/anti eavesdropping device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0117663A GB0117663D0 (en) | 2001-07-20 | 2001-07-20 | Listening anti eavesdropping device |
GB0117663.5 | 2001-07-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003009499A2 WO2003009499A2 (en) | 2003-01-30 |
WO2003009499A3 true WO2003009499A3 (en) | 2003-07-31 |
Family
ID=9918840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2002/003249 WO2003009499A2 (en) | 2001-07-20 | 2002-07-16 | Listening/anti eavesdropping device |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002313529A1 (en) |
GB (1) | GB0117663D0 (en) |
WO (1) | WO2003009499A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10328815A1 (en) * | 2003-06-21 | 2005-01-05 | Biotronik Meß- und Therapiegeräte GmbH & Co. Ingenieurbüro Berlin | Coating system for implants to increase tissue compatibility |
KR100901772B1 (en) | 2007-10-08 | 2009-06-11 | 한국전자통신연구원 | Devices to prevent eavesdropping through speakers |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4593160A (en) * | 1984-03-09 | 1986-06-03 | Murata Manufacturing Co., Ltd. | Piezoelectric speaker |
WO1997009842A2 (en) * | 1995-09-02 | 1997-03-13 | New Transducers Limited | Acoustic device |
WO2000035242A2 (en) * | 1998-12-09 | 2000-06-15 | New Transducers Limited | Bending wave panel-form loudspeaker |
US6114684A (en) * | 1998-05-19 | 2000-09-05 | Mc Guire; James F. | Laser listening device detector |
WO2001054450A2 (en) * | 2000-01-24 | 2001-07-26 | New Transducers Limited | Transducer in particularly for use in acoustic devices |
-
2001
- 2001-07-20 GB GB0117663A patent/GB0117663D0/en not_active Ceased
-
2002
- 2002-07-16 WO PCT/GB2002/003249 patent/WO2003009499A2/en not_active Application Discontinuation
- 2002-07-16 AU AU2002313529A patent/AU2002313529A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4593160A (en) * | 1984-03-09 | 1986-06-03 | Murata Manufacturing Co., Ltd. | Piezoelectric speaker |
WO1997009842A2 (en) * | 1995-09-02 | 1997-03-13 | New Transducers Limited | Acoustic device |
US6114684A (en) * | 1998-05-19 | 2000-09-05 | Mc Guire; James F. | Laser listening device detector |
WO2000035242A2 (en) * | 1998-12-09 | 2000-06-15 | New Transducers Limited | Bending wave panel-form loudspeaker |
WO2001054450A2 (en) * | 2000-01-24 | 2001-07-26 | New Transducers Limited | Transducer in particularly for use in acoustic devices |
Also Published As
Publication number | Publication date |
---|---|
WO2003009499A2 (en) | 2003-01-30 |
AU2002313529A1 (en) | 2003-03-03 |
GB0117663D0 (en) | 2001-09-12 |
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