Method of Transmitting End-of-Speech Marks in a Speech Recognition System

• US 20080120104A1
• Filed: 12/28/2005
• Published: 05/22/2008
• Est. Priority Date: 02/04/2005
• Status: Abandoned Application

• Current Assignee: Orange S.A.
• Original Assignee: Orange S.A.
• Inventors: Ferrieux, Alexandre
• Application Number:
  US11/883,970
• Publication Number:
  US 20080120104A1
• Time in Patent Office: Days
• US Class Current: 704/246
• CPC Class Codes: G10L 15/30 Distributed recognition, e.g. in client-server systems, for mobile phones or network applications

Abstract

A method of transmitting end-of-speech marks in a distributed speech recognition system operating in a discontinuous transmission mode, in which system speech segments (30, 40) are transmitted, followed by periods (34) of silence, each speech segment (30, 40) terminating with an end-of-speech mark (31, 41). The end-of-speech mark (31) is retransmitted continually (31a, 31b, 31c, 31d) throughout the duration of the period of silence (34) following said speech segment (30).

Claims

1. A method of transmitting end-of-speech marks in a distributed speech recognition system adapted to operate in a discontinuous transmission mode in which speech segments (30, 40) are transmitted followed by periods (34) of silence and each speech segment (30, 40) terminates with an end-of-speech mark (31, 41), wherein said end-of-speech mark (31) is retransmitted continually (31a, 31b, 31c, 31d) for the duration of the period of silence (34) following said speech segment (30).

2. A The method according to claim 1, wherein said end-of-speech mark (31) is retransmitted at time intervals of the same duration (Δ

t).

3. The method according to claim 1, wherein said end-of-speech mark is retransmitted at time intervals of increasing duration (Δ

t).

4. The method according to claim 2, wherein said duration (Δ

t) is of the order of one second.

5. The method according to claim 1, wherein the retransmission of said end-of-speech mark (31) is interrupted on reception of a message acknowledging a retransmitted end-of-speech mark (31b).

6. The method according to claim 1, wherein the end-of-speech marks (31a, 31b, 31c, 31d) are transmitted in packets shorter than the nominal lengths of pairs of frames in said speech segments (30, 40).

7. A distributed speech recognition system adapted to operate in a discontinuous mode and comprising a terminal adapted to send speech segments (30, 40) followed by periods (34) of silence, each speech segment (30, 40) terminating with an end-of-speech mark (31), wherein said terminal is adapted to retransmit said end-of-speech mark (31) continually (31a, 31b, 31c, 31d) for the duration of the period (34) of silence following said speech segment (30).

8. The system according to claim 7, further comprising a voice server adapted to send a message acknowledging a retransmitted end-of-speech mark (31b).

9. A terminal of a distributed speech recognition system adapted to operate in discontinuous transmission mode, said terminal being adapted to send speech segments (30, 40), followed by periods (34) of silence, each speech segment (30, 40) terminating with an end-of-speech mark (31), wherein said terminal is adapted to retransmit said end-of-speech mark (31) continually (31a, 31b, 31c, 31d) for the duration of the period (34) of silence following said speech segment (30).