Communication system with handset for distributed processing

• US 6,216,013 B1
• Filed: 11/16/1999
• Issued: 04/10/2001
• Est. Priority Date: 03/10/1994
• Status: Expired due to Fees

• Current Assignee: Cable & Wireless UK (Liberty Latin America Ltd.)
• Original Assignee: Cable & Wireless UK (Liberty Latin America Ltd.)
• Inventors: Ellis, Christopher William Henderson, Moore, Iain Charles
• Primary Examiner(s): MAUNG, NAY AUNG
• Application Number:
  US09/441,353
• Time in Patent Office: 511 Days
• Field of Search: 455/90, 455/403, 455/550, 455/556, 455/557, 455/563, 455/566, 704/246, 704/273, 704/275
• US Class Current: 455/557
• CPC Class Codes: G10L 15/02 Feature extraction for speech recognition; Selection of recognition unit
• CPC Class Codes: G10L 15/30 Distributed recognition, e.g. in client-server systems, for mobile phones or network applications
• CPC Class Codes: H04M 1/271 controlled by voice recognition
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality

Abstract

A communication system, comprising at least one mobile handheld telephone handset adapted to communicate with a telephone network handling system. The handset comprises means to produce first signals dependent thereupon, means to produce a voice transmission signal and means to transmit the voice transmission signal. The handset also comprises first processing means to carry out a speech recognition process to produce initial feature analysis parameter coefficients data dependent thereupon. The first processing step preserves predetermined information. The handset further comprises means to produce a data transmission. The telephone network handling system comprises means to receive the voice signal, means to forward the voice signal, and means to receive and process the data transmission signal. The telephone handling system also comprises means to carry out the remote second processing step in a speech recognition process on the regenerated data.

Claims

1. A communication system, comprising:

at least one mobile handheld telephone handset adapted to communicate via a wireless telephony medium with a telephone network handling system,

wherein said handset comprises;

(a) means to receive input from a user and produce first signals dependent thereupon,

(b) means to adapt at least a portion of said first signals to produce a voice transmission signal as part of a telephone conversation with a third party, and

(c) means to transmit said voice transmission signal via said wireless telephony medium,

(d) first processing means adapted to carry out a first processing step in a speech recognition process on selected ones of said first signals and produce initial feature analysis parameter coefficients data dependent thereupon, wherein the first processing step preserves predetermined information necessary to carry out a remote second processing step,

(e) means to adapt said data according to a wireless telephony protocol to produce a data transmission signal, and

(f) means to transmit said data transmission signal via said wireless telephony medium to said telephone network handling system; and

wherein said telephone network handling system comprises;

(a) means to receive said voice transmission signal,

(b) means to forward said voice transmission signal to said third party,

(c) means to receive and process said data transmission signal from said handset to regenerate said data, and

(d) second processing means positioned remote from said handset and adapted to carry out said remote second processing step in a speech recognition process on said regenerated data, and to produce second signals dependent thereupon;

wherein said selected first signals comprise speech signals and wherein said data transmission signal includes predetermined features of said input speech signals to enable said second processing means to carry out the remaining steps of said speech recognition process, and wherein said second signals comprise text signals representative of the textual content of said input, and said text signals are returned to said handset for output as text.

2. A communication system, comprising:

at least one mobile handheld telephone handset adapted to communicate via a wireless telephony medium with a telephone network handling system,

wherein said handset comprises;

(a) means to receive input from a user and produce first signals dependent thereupon,

(b) means to adapt at least a portion of said first signals to produce a voice transmission signal as part of a telephone conversation with a third party, and

(c) means to transmit said voice transmission signal via said wireless telephony medium,

(d) first processing means adapted to carry out a first processing step in a speech recognition process on selected ones of said first signals and produce initial feature analysis parameter coefficients data dependent thereupon, wherein the first processing step preserves predetermined information necessary to carry out a remote second processing step,

(e) means to adapt said data according to a wireless telephony protocol to produce a data transmission signal, and

(f) means to transmit said data transmission signal via said wireless telephony medium to said telephone network handling system; and

wherein said telephone network handling system comprises;

(a) means to receive said voice transmission signal,

(b) means to forward said voice transmission signal to said third party,

(c) means to receive and process said data transmission signal from said handset to regenerate said data, and

(d) second processing means positioned remote from said handset and adapted to carry out said remote second processing step in a speech recognition process on said regenerated data, and to produce second signals dependent thereupon,

wherein said first and second processing means are adapted to carry out first and second processing steps in a handwriting recognition process.

3. A communication system comprising:

at least one mobile handheld telephone handset adapted to communicate via a wireless telephony medium with a telephone network handling system,

wherein said handset comprises;

(a) means to receive input from a user and produce first signals dependent thereupon,

(b) means to adapt at least a portion of said first signals to produce a voice transmission signal as part of a telephone conversation with a third party, and

(c) means to transmit said voice transmission signal via said wireless telephony medium,

(d) first processing means adapted to carry out a first processing step in a speech recognition process on selected ones of said first signals and produce initial feature analysis parameter coefficients data dependent thereupon, wherein the first processing step reserves predetermined information necessary to carry out a remote second processing step,

(e) means to adapt said data according to a wireless telephony protocol to produce a data transmission signal, and

(f) means to transmit said data transmission signal via said wireless telephony medium to said telephone network handling system;

wherein said handset acts as a remote input device for a computer; and

wherein said telephone network handling system comprises

(a) means to receive said voice transmission signal,

(b) means to forward said voice transmission signal to said third party,

(c) means to receive and process said data transmission signal from said handset to regenerate said data, and

(d) second processing means positioned remote from said handset and adapted to carry out said remote second processing step in a speech recognition process on said regenerated data, and to produce second signals dependent thereupon,

wherein said first processing step comprises converting the selected first signals into object-level graphics code suitable for the computer.