Apparatus including a pair of neural networks having disparate functions cooperating to perform instruction recognition

• US 5,426,745 A
• Filed: 03/03/1994
• Issued: 06/20/1995
• Est. Priority Date: 08/18/1989
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Akimoto, Hajime, Nakagawa, Tetsuya, Baji, Toru, Tonomura, Motonobu, Noguchi, Kouki, Masuhara, Toshiaki
• Primary Examiner(s): Harrell, Robert B.
• Application Number:
  US08/206,195
• Time in Patent Office: 474 Days
• Field of Search: 364/DIG. 1 MS File, 364/DIG. 2 MS File, 364/513, 395/1, 395/2, 395/3, 395/4, 395/5, 395/6, 395/7, 395/8, 395/9, 395/10, 395/11, 395/12, 395/13, 395/14, 395/15, 395/20, 395/21, 395/22, 395/100, 395/155, 395/200, 395/250, 395/275, 395/325, 395/375 , 395/650, 395/700, 395/800, 381/15, 381/41, 381/44, 381/42, 381/43, 381/45, 381/51, 381/52, 381/110, 382/14, 382/15, 382/22
• US Class Current: 345/469
• CPC Class Codes: G06F 3/16 Sound input; Sound output speech processing G10L
• CPC Class Codes: G06V 30/10 Character recognition
• CPC Class Codes: G06V 30/187 Frequency domain transformation; Autocorrelation
• CPC Class Codes: G07C 9/25 using biometric data, e.g. fingerprints, iris scans or voice recognition
• CPC Class Codes: G10L 15/16 using artificial neural networks

Abstract

There is provided a customized personal terminal device capable of operating in response to input data peculiar to the operator, comprising a speech recognition unit for recognizing inputted speech, an image recognition unit for recognizing inputted image, and an instruction recognition unit for recognizing an inputted instruction. Neural networks respectively provided in at least two of the speech, image and instruction recognition units, a bus operatively connected to the respective recognition units, a processor operatively connected to the bus to perform processing upon the speech, and image and instruction recognized by the recognition units. Also, memory is operatively connected to the bus, and a control unit exercises control over information exchange between respective recognition units and the memory under the control of the processor.

Claims

1. An information processing apparatus, comprising:

an interface unit for inputting a plurality of commands into the information processing apparatus, the interface unit including a first neural network for converting each of said plurality of commands in a corresponding plurality of digital data;

an instruction recognition an error correction unit including a second neural network connected to said first neural network for recognizing instructions among said plurality of digital data converted by said first neural network and in an event of an error, providing a best guess substitutional instruction executable by the information processing apparatus; and

,

processing means for performing a desired processing to execute said recognized or said substitutional instructions.

2. The information processing apparatus according to claim 1 wherein each of the first neural network and the second neural network are adapted to perform disparate functions.

3. The information processing apparatus according to claim 2 wherein said first neural network is adapted to:

i) recognize a plurality of instruction segments in said plurality of commands and ii) convert said plurality of recognized instruction segments into said plurality of digital data.

4. The information processing apparatus according to claim 2 wherein said second neural network is adapted to recognize said substitutional instruction based on said plurality of instruction segments from the plurality of digital data of the first neural network.

5. The information processing apparatus according to claim 1, wherein said plurality of commands comprise analog data, and wherein said interface unit includes means for converting said analog data to said plurality of digital data.

6. The information processing apparatus according to claim 5, wherein:

said interface unit includes speech input means for inputting a spoken command; and

,

said first neural network includes means for converting said spoken command to said plurality of digital data.

7. The information processing apparatus according to claim 5, wherein:

said interface unit includes handwritten command input means for inputting a handwritten command; and

,

said first neural network includes means for converting said handwritten command to said plurality of digital data.

8. An information processing apparatus, comprising:

an interface unit for inputting a first plurality of commands and for converting said first plurality of commands into a corresponding plurality of digital data, said converting being performed by a first neural network in said interface unit;

a keyboard for inputting a second plurality of commands;

an instruction recognition and error correction unit for recognizing, as recognized instructions, i) said plurality of digital data converted by said interface unit and ii) said second plurality of commands inputted by said keyboard, and in an event of an error, providing a best guess substitutional instruction executable by the information processing apparatus, said recognizing and providing being performed by a second neural network in the instruction recognition unit and connected to the first neural network;

processing means for executing a desired processing to perform said recognized or said substitutional instructions.

9. The information processing apparatus according to claim 8 wherein each of the first neural network and the second neural network are adapted to perform disparate functions.

10. The information processing apparatus according to claim 9 wherein said first neural network is adapted to:

i) recognize a plurality of instruction segments in said plurality of commands and ii) convert said plurality of recognized instruction segments into said plurality of digital data.

11. The information processing apparatus according to claim 10 wherein said second neural network is adapted to recognize said substitutional instruction based on said plurality of instruction segments from the plurality of digital data of the first neural network.

12. The information processing apparatus according to claim 8, wherein said plurality of commands comprise analog data, and wherein said interface unit includes means for converting said analog data to said plurality of digital data.

13. The information processing apparatus according to claim 8, wherein:

said interface unit includes speech input means for inputting a spoken command; and

,

said first neural network includes means for converting said spoken command to said plurality of digital data.

14. The information processing apparatus according to claim 8, wherein:

said interface unit includes handwritten command input means for inputting a handwritten command; and

,

said first neural network includes means for converting said handwritten command to said plurality of digital data.