DATA INPUT DEVICE, DATA INPUT METHOD, STORAGE MEDIUM, AND IN-VEHICLE APPARATUS

• US 20150243277A1
• Filed: 02/10/2015
• Published: 08/27/2015
• Est. Priority Date: 02/24/2014
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: KASHIMOTO, KAZUTOSHI
• Granted Patent: US 9,613,625 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/0237 using prediction or retrieval techniques
• CPC Class Codes: G10L 15/06 Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice G10L15/14 takes precedence
• CPC Class Codes: G10L 15/08 Speech classification or search
• CPC Class Codes: G10L 15/19 Grammatical context, e.g. disambiguation of the recognition hypotheses based on word sequence rules
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: G10L 2015/226 using non-speech characteristics
• CPC Class Codes: G10L 2015/228 of application context

Abstract

A dynamic speech recognition dictionary generating unit extracts, from phrases stored in a speech recognition dictionary, phrases of which heads match a head of a character string inputted through a character string input unit and generates a dynamic speech recognition dictionary that stores difference phrases that are each part of an extracted phrase excluding a common phrase that is common among the extracted phrases. A speech recognition unit carries out recognition of a user utterance by using the dynamic speech recognition dictionary. An input character string confirming unit confirms an input character string candidate that includes a recognized difference phrase as an input character string.

Claims

1. A data input device that includes two input units including a character string input unit that accepts a character string and a voice input unit that accepts voice input, a display unit that displays a character string, and a speech recognition dictionary, the data input device comprising:

a dynamic speech recognition dictionary generator that extracts phrases of which heads match a head of a character string inputted through the character string input unit from phrases stored in the speech recognition dictionary, and generates a dynamic speech recognition dictionary that stores difference phrases, the difference phrases each being part of an extracted phrase excluding a common phrase that is common among the extracted phrases;

a display controller that displays the difference phrases of an input character string candidate being highlighted on the display unit;

a speech recognizer that carries out speech recognition of voice inputted through the voice input unit by using the dynamic speech recognition dictionary; and

an input character string confirmer that confirms the input character string candidate that includes a difference phrase recognized by the speech recognizer as an input character string,

wherein at least one of the dynamic speech recognition dictionary generator, the display controller, the speech recognizer and the input character string confirmer is included in a processor.

2. The data input device according to claim 1,

wherein the speech recognizer carries out speech recognition by sequentially using the dynamic speech recognition dictionary and the speech recognition dictionary.

3. The data input device according to claim 1, further comprising:

an input switcher that switches between the character string input unit and the voice input unit on the basis of a running state of a vehicle.

4. The data input device according to claim 1,

wherein the dynamic speech recognition dictionary generator generates the dynamic speech recognition dictionary each time a character is inputted through the character string input unit.

5. An in-vehicle apparatus, comprising:

input device according to claim 1.

6. A data input method for a data input device that includes a character string input unit that accepts a character string, a display unit that displays a character string, a voice input unit that accepts voice input, and a speech recognition dictionary, the data input method comprising:

extracting phrases of which heads match a head of a character string inputted through the character string input unit from phrases stored in the speech recognition dictionary, and generating a dynamic speech recognition dictionary that stores difference phrases, the difference phrases each being part of an extracted phrase excluding a common phrase that is common among the extracted phrases;

displaying the difference phrases of an input character string candidate being highlighted on the display unit;

carrying out speech recognition of voice inputted through the voice input unit by using the dynamic speech recognition dictionary; and

confirming the input character string candidate that includes a difference phrase recognized through the speech recognition as an input character string.

7. A non-transitory, tangible computer-readable storage medium storing a program that causes a computer to execute the data input method according to claim 6.