Remote control device for voice recognition and user identification restrictions

• US 5,777,571 A
• Filed: 10/02/1996
• Issued: 07/07/1998
• Est. Priority Date: 10/02/1996
• Status: Expired due to Fees

• Current Assignee: UTEK Semiconductor Corp. (United Microelectronics Corporation)
• Original Assignee: Holtek Microelectronics, Inc. (United Microelectronics Corporation)
• Inventors: Chuang, Chen-Tien
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): WONG, ALBERT KANG
• Application Number:
  US08/720,661
• Time in Patent Office: 643 Days
• Field of Search: 341/173, 341/176, 379/74, 381/110, 381/105, 340/825.72, 295/2.84
• US Class Current: 341/176
• 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: G10L 17/00 Speaker identification or verification techniques
• CPC Class Codes: G10L 17/04 Training, enrolment or model building
• CPC Class Codes: G10L 2015/223 Execution procedure of a spoken command

Abstract

A remove control device that has voice recognition and user ID restriction functions equipped with a receiver is provided. The device includes a radio frequency (RF) receiving circuit, a demodulator, a voice input control device, an analog to digital conversion signal control unit, a buffer, a memory, a voice recognition processing unit, an instruction verification device, and an output control device. When the receiver is in a voice training mode, the signal characteristics of the voice command from the user can be stored in a memory. When the receiver is in an instruction execution mode, the receiver receives signals transmitted from the emitter, recognizes and compares the signal with the original signal stored in the memory during the voice training mode and determine if it is from an authorized user. Only after the identification matches the instruction verification device that verifies the received instruction, the output control device outputs a corresponding control signal.

Claims

1. A remote control device having voice recognition and user ID restriction functions, said remote control device comprising:

an emitter and a receiver,

said emitter comprising a first voice input control device to receive a user voice instruction signal, said first voice input control device being connected to a modulator, an output of said modulator controlling a RF emitting circuit,

said receiver having a voice training mode and an instruction execution mode and comprising;

a second voice input control device for inputting user voice signals to said receiver in said voice training mode,

a RF receiving circuit to receive said user voice instruction signal to said receiver in said instruction execution mode,

a demodulator connected to an output of said RF receiving circuit,

an analog/digital conversion signal control unit controlled from said demodulator and from said second voice input control device,

voice recognition processing unit connected to an output of said analog/digital conversion signal control unit through a buffer,

a memory unit connected to said voice recognition processing unit via a two-way connection,

an instruction verification device controlled by said voice recognition processing unit, and

an output control device connected to an output of said instruction verification device.

2. A remote control device according to claim 1, wherein said receiver further comprising a voice training control switch for initiating the operation of the voice training mode.

3. A remote control device according to claim 1, wherein when said receiver is in said voice training mode, the user voice signal is first transmitted to said second input control device through a first microphone and then converted to digital voice signal through said analog/digital conversion signal control unit and stored temporarily in said buffer, said digital voice signal is later processed by said voice recognition processing unit to store voice characteristics in said memory unit.

4. A remote control device according to claim 1, wherein when said receiver is in said instruction execution mode, said user voice instruction signal is first received by said RF receiving circuit and demodulated by said demodulator and then converted into digital signal by said analog/digital conversion signal control unit and temporarily stored in said buffer, said voice recognition processing unit is capable of obtaining the characteristics of the voice signal, comparing against a previously stored signal in said memory unit and determining if the user is one of the authorized users, when said determination is positive, then it is further verified with the instruction verification device and said instruction control signal is outputted via an output control device.

5. A remote control device according to claim 4, wherein said RF receiving circuit further comprises a receiving antenna for receiving a RF instruction signal from said emitter.

6. A remote control device according to claim 4, wherein said instruction verification device verifies functions corresponding to the user instruction.

7. A remote control device according to claim 4, wherein said output control device outputs a control signal to an outside device.

8. A remote control device according to claim 1, wherein said emitter further comprising a second microphone and an emitting antenna such that when a user'"'"'s voice instruction signal received by said second microphone is transmitted to said first voice input control device and modulated by said modulator, said voice instruction signal is emitted by the RF emitting circuit via the emitting antenna to the receiver for performing instruction execution.