The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1993
Filed:
Aug. 16, 1991
Fujitsu Ten Limited, Hyogo, JP;
Abstract
This invention relates to a control system for controlling equipment provided inside a vehicle utilizing a speech recognition apparatus inside the vehicle. This control system includes an in-phase component detector (4) for detecting an in-phase component of voice signals from microphones (1), a phase shift and in-phase component detector (5) for shifting a phase of the voice signals to detect an in-phase component, and a command seat discriminator (6) for comparing output levels of the in-phase component detector (4) and the phase shift and in-phase component detector (5). In addition, the control system includes validity/invalidity detector (7) for determining the validity and invalidity of a command content resulting from outputs of a speech recognizer (3) based upon a signal generated from the command seat discriminator (6), and a various controller (8) that controls any one of various pieces of equipment with respect to the valid commands output from the validity/invalidity detector (7) to reliably discriminate commands from the driver's seat and the passenger seats in a noisy vehicle.