US 12,283,274 B2Granted

Voice control system and voice control method for automatic door

AssigneePegatron Corporation

InventorShun-Chieh Chang

Life of this patent

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Abstract

A voice control system and a voice control method for an automatic door are provided. The voice control system includes a sound detection device, a storage device, a first determination circuit, a second determination circuit and a control circuit. The sound detection device detects a sound signal of a sound source, the storage device includes a voiceprint database that includes reference voiceprint features. The first determination circuit analyzes a voiceprint feature of the sound signal and compares the voiceprint feature with the reference voiceprint features. The second determination circuit determines whether a velocity of the sound source falls within a reference speed range according to a frequency variation of the sound signal that matches one of the voiceprint features. In response to the velocity of the sound source within the reference speed range, the control circuit controls the automatic door to be in an open state.

Claims9

Dependent claims

A voice control system for an automatic door, the voice control system comprising:

a sound detection device configured to detect a sound signal of a sound source;
a storage device comprising a voiceprint database, wherein the voiceprint database comprises a plurality of reference voiceprint features;
a first determination circuit electrically connected to the storage device and the sound detection device, wherein the first determination circuit is configured to analyze a voiceprint feature of the sound signal and compare the voiceprint feature with the reference voiceprint features, so as to determine whether or not the voiceprint feature matches one of the reference voiceprint features;
a second determination circuit electrically connected to the first determination circuit, wherein the second determination circuit is configured to determine whether or not a velocity of the sound source falls within a reference speed range according to a frequency variation of the sound signal that matches at least one of the reference voiceprint features;
and
a control circuit electrically connected to the second determination circuit, wherein, in response to the velocity of the sound source within the reference speed range, the control circuit controls the automatic door to be in an open state.

3 more elements

A voice control method for an automatic door, the voice control method comprising:

detecting a sound signal of a sound source;
determining whether or not a voiceprint feature of the sound signal matches one of a plurality of reference voiceprint features;
in response to the voiceprint feature of the sound signal matching at least one of the reference voiceprint features, determining whether or not a velocity of the sound source falls within a reference speed range according to a frequency variation of the sound signal;
and
in response to the velocity of the sound source within the reference speed range, controlling the automatic door to be in an open state.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/083,684Filed 19 Dec 2022
Priority: TW 1111000163 Jan 2022
Published: US 2023/0215434 A16 Jul 2023
Granted: 22 Apr 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

G10L 15/22
Speech recognition: procedures used during a speech recognition process, e.g. man-machine dialogue
E05F 15/73
With automatic actuation: responsive to movement or presence of persons or objects
G01S 11/14
Systems for determining distance or velocity not using reflection or reradiation: using ultrasonic, sonic or infrasonic waves
G06F 21/32
User authentication: using biometric data, e.g. fingerprints, iris scans or voiceprints