Wireless voice-activated remote control device

• US 6,339,706 B1
• Filed: 11/12/1999
• Issued: 01/15/2002
• Est. Priority Date: 11/12/1999
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Rundqwist, Göran, Tillgren, Magnus
• Primary Examiner(s): Chang, Vivian
• Assistant Examiner(s): MOORE, JAMES K
• Application Number:
  US09/438,326
• Time in Patent Office: 795 Days
• Field of Search: 455/419, 455/420, 455/569, 455/69, 455/70, 455/563, 379/93.17, 379/102.3, 340/825.72, 359/145
• US Class Current: 455/419
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 2201/31 Voice input
• 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 1/6066 including a wireless connection
• CPC Class Codes: H04M 1/72415 for remote control of appliances
• CPC Class Codes: H04M 2250/02 including a Bluetooth interface
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 84/10 Small scale networks; Flat hierarchical networks
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

The present invention relates to a wireless, voice-activated remote control device for controlling an electronic device having voice control circuitry. A short-range range wireless data and voice communication link, for example using Bluetooth technology, is established between the remote control device and the electronic device. To activate voice control circuitry in the electronic device, a user supplies an input to the remote control device. In response to the user input, wireless link circuitry within the remote control device sends a control signal, for example an AT command, to the electronic device. The electronic device receives the control signal and transmits a control signal indicating the status of the electronic device. Once the voice control circuitry is activated, the user provides a voice command to the remote control device. The remote control device transmits the voice signal to the electronic device over the wireless communication link. The electronic device processes the voice signal in the voice control circuitry and generates instructions in response to the voice signal if recognized. The voice control circuitry is advantageously located within the electronic device and not within the remote control device to simplify the remote control device and to minimize the amount of power dissipated in the remote control device.

Claims

1. A method of controlling an electronic device with a remote control device, the method comprising the steps of:

establishing a wireless communication link between the electronic device and the remote control device over which data signals and voice signals may be transmitted;

receiving a voice signal at the remote control device;

transmitting the voice signal from the remote control device to the electronic device via the wireless communication link;

receiving the voice signal at the electronic device;

generating an instruction responsive to the voice signal in the electronic device;

executing the instruction in the electronic device;

transmitting at least one signal from the remote control device to the electronic device to elicit a response from the electronic device;

transmitting an operational status of the electronic device in response to one of the at least one signal;

storing the operational status in a memory unit in the remote control device,

updating the operational status of the electronic device; and

changing an operational status of the remote control device in response to the updating step.

2. The method of claim 1, wherein the establishing step is responsive to a user input at the remote control device, the establishing step comprising the steps of:

transmitting at least one first signal from the remote control device to the electronic device requesting that the wireless communication link be established; and

transmitting at least one second signal from the electronic device to the remote control device indicating that the wireless communication link is established.

3. The method of claim 1, wherein the establishing step is responsive to an event at the electronic device, the establishing step comprising the steps of:

transmitting at least one first signal from the electronic device to the remote control device requesting that the wireless communication link is established; and

transmitting at least one second signal from the remote control device to the electronic device indicating that the wireless communication link is established.

4. The method of claim 3, wherein the electronic device is a mobile telephone and the event is an incoming telephone call.

5. The method of claim 1, wherein the wireless communication link is a Bluetooth connection.

6. The method of claim 1, wherein:

the electronic device includes voice control circuitry,

one of the at least one signal requests voice activated dialing, and

the elicited response includes the electronic device utilizing the voice control circuitry.

7. The method of claim 1 wherein the at least one signal is an AT command.

8. The method of claim 1, further comprising the step of converting the voice signal from an analog signal to a digital signal prior to the transmitting step.

9. The method of claim 1, wherein the electronic device is a computer.

10. The method of claim 1, wherein the remote control device is a headset.

11. The method of claim 1, wherein the electronic device is a mobile telephone.

12. The method of claim 11, wherein:

the electronic device includes voice control circuitry,

one of the at least one signal requests voice activated dialing,

the elicited response includes the electronic device utilizing the voice control circuitry,

the voice signal indicates that a user desires to place a telephone call to an entity, and

the instruction instructs the electronic device to call the entity.

13. The method of claim 1, wherein the electronic device is a communication device engaged in an ongoing call, and further comprising the steps of:

in the electronic device, detecting that the wireless communication link has been broken;

in response to said detection, starting a timer;

upon expiration of a predetermined timeout period, terminating the ongoing call.

14. The method of claim 13, further comprising the step of detecting user intervention within the predetermined timeout period, and in response thereto stopping the timer and maintaining the ongoing call.

15. A wireless, voice-activated remote control system for controlling an electronic device, the system comprising:

an electronic device comprising a microphone, a speaker, an antenna, wireless link circuitry, and voice control circuitry;

a remote control device comprising a microphone, a speaker, an antenna, wireless link circuitry, and a user input device, wherein at least one voice signal is input into the microphone of the remote control device; and

a wireless communication link between the electronic device and the remote control device over which data signals and voice signals may be transmitted;

wherein;

the voice signal is transmitted from the remote control device to the electronic device via the wireless communication link,

the voice signal is received at the electronic device,

the voice control circuitry generates an instruction responsive to the voice signal and the instruction is executed in the electronic device,

the remote control device transmits at least one signal to the electronic device to elicit a response from the electronic device,

the electronic device transmits an operational status of the electronic device in response to one of the at least one signal,

the remote control device stores the operational status in a memory unit in the remote control device,

the electronic device updates its operational status with the remote control device, and

the remote control device changes an operational status of the remote control device in response to the updated operational status of the electronic device.

16. The system of claim 15, wherein:

the wireless communication link is established in response to a signal from the user input device,

the remote control device transmits at least one first signal to the electronic device requesting that the wireless communication link be established, and

the electronic device transmits at least one second signal to the remote control device indicating that the wireless communication link is established.

17. The system of claim 15, wherein:

the wireless communication link is established in response to an event at the electronic device,

the electronic device transmits at least one first signal to the remote control device requesting that the wireless communication link be established; and

the remote control device transmits at least one second signal to the electronic device indicating that the wireless communication link is established.

18. The system of claim 17, wherein the electronic device is a mobile telephone and the event is an incoming telephone call.

19. The system of claim 18, wherein:

the electronic device includes voice control circuitry,

one of the at least one signal requests voice activated dialing, and

the elicited response includes the electronic device utilizing the voice control circuitry.

20. The system of claim 18, wherein the at least one signal is an AT command.

21. The system of claim 15, wherein the wireless communication link is a Bluetooth connection.

22. The system of claim 15, further comprising an analog to digital converter for converting the voice signal from an analog signal to a digital signal prior to transmitting the voice signal to the electronic device.

23. The system of claim 22, wherein:

the remote control device transmits at least one signal to the electronic device to elicit a response from the electronic device,

one of the at least one signal requests voice activated dialing,

the elicited response includes the electronic device utilizing the voice control circuitry,

the voice signal indicates that a user desires to place a telephone call to an entity, and

the instruction instructs the electronic device to call the entity.

24. The system of claim 15, wherein the electronic device is a computer.

25. The system of claim 15, wherein the remote control device is a headset.

26. The system of claim 15, wherein the electronic device is a mobile telephone.

27. The system of claim 15, wherein the electronic device is a communication device engaged in an ongoing call, and further comprising:

in the electronic device, logic configured to detect that the wireless communication link has been broken;

a timer;

logic configured to start the timer in response to said detection;

logic configured to terminate the ongoing call in response to expiration of a predetermined timeout period.

28. The system of claim 27, further comprising:

logic configured to detect user intervention within the predetermined timeout period; and

logic configured to stop the timer and maintain the ongoing call in response to said detected user intervention.