Methods and systems for touch-free call origination

• US 9,247,037 B2
• Filed: 09/22/2006
• Issued: 01/26/2016
• Est. Priority Date: 09/23/2005
• Status: Active Grant

• Current Assignee: BCE Incorporated
• Original Assignee: BCE Incorporated
• Inventors: Clark, David William, Weber, Andrew James
• Primary Examiner(s): Elahee, MD S
• Application Number:
  US11/534,501
• Publication Number:
  US 20070073536A1
• Time in Patent Office: 3,413 Days
• Field of Search: 379/212.01, 379 8801- 8803, 379/88.17, 455/563, 455/417
• US Class Current: 1/1
• CPC Class Codes: G10L 15/26 Speech to text systems G10L15/08 takes precedence
• CPC Class Codes: H04M 1/271 controlled by voice recognition
• CPC Class Codes: H04M 2250/74 with voice recognition means voice activated dialling H04M1/271; voice recognition algorithms G10L15/00

Abstract

Methods and systems to enable touch-free call origination using a communication device equipped with a microphone. The method comprises processing a first microphone signal at the device in an attempt to detect a spoken activation command potentially contained therein. Responsive to detection of a spoken activation command in the first microphone signal, the method continues by establishing a communication path between the device and a network entity to convey to the network entity a second microphone signal. Finally, the method comprises processing the second microphone signal at the network entity in an attempt to detect a call origination command potentially contained therein; and, responsive to detection of a call origination command in the second microphone signal, attempting establishment of a call in accordance with the detected call origination command. Thus, a call can be established without tactile interaction with the device and, moreover, with minimal computational load on the device.

Claims

1. A method to enable touch-free call origination using a communication device equipped with a microphone, comprising:

processing a first portion of a microphone signal captured at the communication device in an attempt to detect a spoken activation command potentially contained therein, the first portion of the microphone signal processed at the communication device;

responsive to detection of a spoken activation command in the first portion of the microphone signal, establishing a communication path between the communication device and a network entity to convey to the network entity a second portion of the microphone signal captured at the communication device;

processing the second portion of the microphone signal at the network entity in an attempt to detect the call origination command potentially contained therein;

responsive to detection of a call origination command in the second portion of the microphone signal, attempting establishment of a call in accordance with the detected call origination command.

2. The method defined in claim 1, further comprising:

responsive to detection of a spoken activation command in the first portion of the microphone signal, sending a confirmation signal to the communication device over the communication path, the confirmation signal causing issuance of a confirmation request message by the communication device.

3. The method defined in claim 2, further comprising:

processing a third portion of the microphone signal at the network entity in an attempt to detect a confirmation response potentially contained therein;

responsive to detection of a negative confirmation response in the third portion of the microphone signal, disabling the communication path.

4. The method defined in claim 3, wherein said processing the third portion of the microphone signal occurs between said processing the first portion of the microphone signal and said processing the portion of the second microphone signal.

5. The method defined in claim 1, further comprising identifying at the network entity a user associated with the spoken activation command and performing at the network entity a determination of eligibility of the user to originate calls in a touch-free manner, wherein said establishing a communication path is performed only if said determination of eligibility is positive.

6. The method defined in claim 5, wherein said performing at the network entity a determination of eligibility of the user to originate calls in a touch-free manner comprises determining whether the user is subscribed to a voice-activated call origination service.

7. The method defined in claim 1, wherein the call origination command is spoken by a speaker, the method further comprising performing biometric signal processing on the second microphone signal to authenticate the speaker of the call origination command.

8. The method defined in claim 7, wherein said performing biometric signal processing comprises identifying voice characteristics of the second portion of the microphone signal and attempting to identify whether the identified voice characteristics match voice characteristics associated with at least one subscribed user in a database of subscribed users.

9. The method defined in claim 1, further comprising conveying a third portion of the microphone signal over the communication path.

10. The method defined in claim 9, further comprising performing biometric signal processing on the third portion of the microphone signal to authenticate the speaker of the spoken activation command.

11. The method defined in claim 10, wherein said performing biometric signal processing comprises identifying voice characteristics of the third portion of the microphone signal and attempting to identify whether the identified voice characteristics match voice characteristics associated with at least one subscribed user in a database of subscribed users.

12. The method defined in claim 11, the third microphone signal having been produced no earlier than the first portion of the microphone signal.

13. The method defined in claim 11, wherein said performing biometric signal processing on the third portion of the microphone signal occurs between said processing the first portion of the microphone signal and said processing the second portion of the microphone signal.

14. The method defined in claim 11, wherein the third microphone signal comprises at least a portion of the first microphone signal.

15. The method defined in claim 14, wherein said processing the second portion of the microphone signal at the network entity is performed only if the identified voice characteristics match voice characteristics associated with at least one subscribed user in the database of subscribed users.

16. A call origination unit for enabling touch-free call origination from a communication device, comprising:

a communication module adapted to support a communication path conveying a second portion of a microphone signal captured by a microphone associated with the communication device, the communication path being established in response to detection by the communication device of a spoken activation command in a first portion of the microphone signal;

a speech recognition module adapted to process the second portion of the microphone signal conveyed over the communication path in an attempt to detect a call origination command potentially contained therein;

a control module responsive to detection of the call origination command by the speech recognition module to attempt establishment of a call in accordance with the detected call origination command.

17. The call origination unit defined in claim 16, wherein the first portion of the microphone signal is produced prior to the second portion of the microphone signal.

18. The call origination unit defined in claim 17, wherein the call origination command conveys call destination information.

19. The call origination unit defined in claim 18, wherein the call destination information is a telephone number.

20. The call origination unit defined in claim 17, wherein the call origination command conveys a recipient identifier.

21. The call origination unit defined in claim 20, wherein the control module is further adapted to consult a database in order to determine call destination information corresponding to the recipient identifier.

22. The call origination unit defined in claim 16, wherein the speech recognition module is further adapted to compare the origination signal to a plurality of recognizable speech segments corresponding to different call destination information.

23. The call origination unit defined in claim 22, wherein the speech recognition module is further adapted to consult a database in order to access the plurality of recognizable speech segments corresponding to different call destination information.

24. The call origination unit defined in claim 16, the control module being adapted to (1) identify a user associated with the spoken activation command;

(2) perform a determination of eligibility of the user to originate calls in a touch-free manner; and

(3) establish the communication path in response to said determination of eligibility being positive.

25. The call origination unit defined in claim 24, wherein the control module being adapted to perform a determination of eligibility of the user to originate calls in a touch-free manner comprises the control module being adapted to determine whether the user is subscribed to a voice-activated call origination service.

26. The call origination unit defined in claim 25, wherein the call origination unit is reachable from the communication device via a communication network and wherein the communication path is established over a portion of the communication network.

27. The call origination unit defined in claim 26, wherein the communication device is connected to a telephone line, and wherein the control module being adapted to identify a user associated with the spoken activation command comprises the control module mapping an identity of the telephone line to the user.

28. The call origination unit defined in claim 26, wherein the communication device has an IP address, and wherein the control module being adapted to identify a user associated with the spoken activation command comprises the control module mapping the IP address to the user.

29. The call origination unit defined in claim 26, wherein the communication device has an electronic serial number, and wherein the control module being adapted to identify a user associated with the spoken activation command comprises the control module mapping the electronic serial number to the user.

30. The call origination unit defined in claim 16, wherein the communication module is further adapted to convey at least a portion of the first portion of the microphone signal over the communication path.

31. The call origination unit defined in claim 30, wherein the speech recognition module is further adapted to perform biometric signal processing on the at least a portion of the first portion of the microphone signal to authenticate the speaker of the spoken activation command.

32. The call origination unit defined in claim 31, wherein said speech recognition module being further adapted to perform biometric signal processing comprises said speech recognition module being further adapted to identify voice characteristics of the first portion of the microphone signal and to attempt to identify whether the identified voice characteristics match voice characteristics associated with at least one subscribed user in a database of subscribed users.

33. The call origination unit defined in claim 16, wherein the spoken activation command and the call origination command form a joint activation and origination command.

34. The call origination unit defined in claim 16, wherein the communication module is further adapted to send a confirmation signal over the communication path, the confirmation signal causing issuance of a confirmation request message by the communication device.

35. The call origination unit defined in claim 34, wherein the speech recognition module is further adapted to process a third portion of the microphone signal produced by the microphone, in an attempt to detect presence of a confirmation response potentially contained therein.

36. The call origination unit defined in claim 35, wherein the third portion of the microphone signal is conveyed over the communication path.

37. The call origination unit defined in claim 36, wherein the control module being adapted to attempt establishment of the call is conditional upon the speech recognition module not detecting presence of a confirmation response in the third portion of the microphone signal.

38. The call origination unit defined in claim 37, wherein the third portion of the microphone signal is produced between the first portion of the microphone signal and the second portion of the microphone signal.

39. The call origination unit defined in claim 37, wherein the third portion of the microphone signal is produced subsequent to the second portion of the microphone signal.

40. The call origination unit defined in claim 36, wherein the control module being adapted to attempt establishment of the call is conditional upon the speech recognition module detecting presence of a positive confirmation response in the third portion of the microphone signal.

41. The call origination unit defined in claim 40, wherein the third portion of the microphone signal is produced between the first portion of the microphone signal and the second portion of the microphone signal.

42. The call origination unit defined in claim 40, wherein the third portion of the microphone signal is produced subsequent to the second portion of the microphone signal.

43. The call origination unit defined in claim 36, wherein responsive to the speech recognition module detecting presence of a negative confirmation response in the third signal, the communication module is adapted to send a solicitation signal soliciting a new call origination command from a user of the communication device.

44. The call origination unit defined in claim 43, wherein the third portion of the microphone signal is produced subsequent to the second portion of the microphone signal.

45. A non-transitory computer readable storage medium containing a program element for execution by a call origination unit to enable touch-free call origination from a communication device, the program element including:

program code means for supporting a communication path conveying a second portion of a microphone signal produced by a microphone associated with the communication device, the communication path being established in response to detection of a spoken activation command in a first portion of the microphone signal;

program code means for processing the second portion of the microphone signal in an attempt to detect a call origination command potentially contained therein;

program code means for, in response to detection of a call origination command, attempting establishment of a call in accordance with the detected call origination command.

46. A communication device for enabling touch-free call origination, comprising:

a microphone adapted to produce a microphone signals indicative of sound sensed by the microphone;

a speech recognition module adapted to process a first portion of the microphone signal in an attempt to detect a spoken activation command potentially contained therein;

a communication module adapted to establish over a portion of a communication network a communication path with a call origination unit in response to detection of a spoken activation command by the speech recognition module, the communication path conveying a second portion of the microphone signal;

wherein when the second portion of the microphone signal conveys a call origination command detectable by a second speech recognition module in the call origination unit, the call origination unit is caused to attempt establishment of a call in accordance with the call origination command.

47. The communication device defined in claim 46, being a wired POTS phone.

48. The communication device defined in claim 46, being a VoIP phone.

49. The communication device defined in claim 46, being a soft phone.

50. The communication device defined in claim 46, being a wireless phone.

51. A system for touch-free call origination, comprising:

a communication device;

a call origination unit reachable by the communication device via a portion of a communication network;

the communication device comprising;

a microphone adapted to produce a microphone signals indicative of sound sensed by the microphone;

a first speech recognition module adapted to process a first portion of the microphone signal in an attempt to detect a spoken activation command potentially contained therein;

a communication module adapted to convey a second portion of the microphone signal over a communication path established with the call origination unit in response to detection of a spoken activation command by the first speech recognition module;

the call origination unit comprising;

a second speech recognition module adapted to process the second portion of the microphone signal in an attempt to detect a call origination command potentially contained therein;

control module responsive to detection of a call origination command by the second speech recognition module to attempt establishment of a call in accordance with the detected call origination command.

52. The system defined in claim 51, the control module being adapted to (1) identify a user associated with the spoken activation command;

(2) perform a determination of eligibility of the user to originate calls in a touch-free manner; and

(3) establish the communication path in response to said determination of eligibility being positive.

53. The system defined in claim 52, wherein said performing a determination of eligibility of the user to originate calls in a touch-free manner comprises determining whether the user is subscribed to a voice-activated call origination service.