Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SUPERIMPOSING HIGH-FREQUENCY COPIES OF EMITTED SOUNDS
Document Type and Number:
WIPO Patent Application WO/2022/199320
Kind Code:
A1
Abstract:
An audio emitter configured to emit a sound creates a high-frequency copy of the sound to be emitted. The high-frequency copy of the sound is superimposed over the sound, resulting in a composite signal. The composite signal is emitted by the emitter. The high-frequency copy is at a frequency inaudible to humans, enabling a receiver to identify the emitter and/or the sound.

More Like This:
JP2002506186[Title of Invention] Bushing
WO/2011/006438METHOD AND DEVICE FOR ANTI-INTERFERENCE IN SINGLE FREQUENCY NETWORK OF MOBILE COMMUNICATION SYSTEM
Inventors:
HAWKER SAMUEL B (GB)
NAYLOR-TEECE ALEXANDER JOHN (GB)
PATEL BHAVNIT (GB)
JANSEN GRACE (GB)
Application Number:
PCT/CN2022/077921
Publication Date:
September 29, 2022
Filing Date:
February 25, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
IBM (US)
IBM CHINA CO LTD (CN)
International Classes:
H04B15/00; H04B11/00; H04N21/462
Foreign References:
US20200287632A12020-09-10
US20170064246A12017-03-02
US20200051534A12020-02-13
US20120295560A12012-11-22
CN112306448A2021-02-02
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: AUDIO OUTPUT METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM

Next Patent: ELECTRONIC DEVICE