Data processing: speech signal processing – linguistics – language – Speech signal processing – Application
Reexamination Certificate
1997-10-03
2001-02-13
Hudspeth, David R. (Department: 2741)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Application
C348S734000
Reexamination Certificate
active
06188985
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates generally to voice recognition devices, and more particularly to a wireless voice-controlled device that permits a user to browse a hypermedia network, such as the World Wide Web, with voice commands.
RELATED PATENT APPLICATIONS
This patent application is related to the following patent applications, each assigned to Texas Instruments Incorporated.
U.S. patent U.S. Pat. No. 5,774,628 entitled “Speaker-Independent Dynamic Vocabulary and Grammar in Speech Recognition”
U.S. patent application Ser. No. 08/419,229, entitled “Voice Activated Hypermedia Systems Using Grammatical Metadata”
BACKGROUND OF THE INVENTION
The Internet is a world-wide computer network, or more accurately, a world-wide network of networks. It provides an exchange of information and offers a vast range of services. Today, the Internet has grown so as to include all kinds of institutions, businesses, and even individuals at their homes.
The World-Wide Web (“WWW” or “Web”) is one of the services available on the Internet. It is based on a technology known as “hypertext”, in which a document has links to its other parts or to other documents. Hypertext has been extended so as to encompass links to any kind of information that can be stored on a computer, including images and sound. For example, using the Web, from within a document one can select highlighted words or phases to get definitions, sources, or related documents, stored anywhere in the world. For this reason, the Web may be described as a “hypermedia” network.
The basic unit in the Web is a “page”, a (usually) text-plus-graphics document with links to other pages. “Navigating” the Web primarily means moving around from page to page.
The idea behind the Web is to collect all kinds of data from all kinds of sources, avoiding the problems of incompatibilities by allowing a smart server and a smart client program to deal with the format of the data. This capability to negotiate formats enables the Web to accept all kinds of data, including multimedia formats, once the proper translation code is added to the servers and clients. The Web client is used to connect to and to use Web resources located on Web servers.
One type of client software used to access and use the Web is referred as “web browser” software. This software can be installed on the user's computer to provide a graphic interface, where links are highlighted or otherwise marked for easy selection with a mouse or other pointing device.
SUMMARY OF THE INVENTION
One aspect of the invention is a wireless voice-activated control unit for controlling a processor-based host system, such as a computer connected to the World Wide Web. A compact hand-held unit has a microphone, a wireless audio input transmitter, a wireless data receiver, and a display. The microphone receives voice input from a user, thereby providing an audio input signal. The audio transmitter wirelessly transmits data derived from the audio signal to the host system. After the host acts on the audio input, it delivers some sort of response in the form of image data wirelessly delivered to the receiver. A display generates and displays images represented by the image data.
Variations of the device can include a speaker for audio output information. The device can also have a processor and memory for performing front-end voice recognition processes or even all of the voice recognition.
An advantage of the invention is that it makes information on the Web more accessible and useful. Speech control brings added flexibility and power to the Web interface and makes access to information more natural.
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Hemphill Charles T.
Thrift Philip R.
Hudspeth David R.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
Troike Robert L.
Zintel Harold
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