# US 2021/0280184 A1 · Information processing terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0280184 A1 - Document ID: US20210280184A1 - Status: Published application - Kind: A1 - Application number: 17/177,397 - Filed: 2021-02-17 - Published: 2021-09-09 - Earliest claimed: 2020-03-09 - Assignees: Toshiba Tec Kabushiki Kaisha - Applicants: Toshiba Tec Kabushiki Kaisha - Inventors: Naoki SEKINE; Shogo WATADA - Web page: https://patentgrep.com/patent/US20210280184A1 ## CPC - G10L 15/22: Procedures used during a speech recognition process, e.g. man-machine dialogue - G10L 15/02: Feature extraction for speech recognition; Selection of recognition unit - G10L 15/10: using distance or distortion measures between unknown speech and reference templates - G10L 25/51: for comparison or discrimination - H04R 29/004: {for microphones (H04R29/007 takes precedence)} - G10L 25/21: the extracted parameters being power information - G10L 2015/228: {of application context} - H04R 2430/01: Aspects of volume control, not necessarily automatic, in sound systems - H04R 2499/11: Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's - G10L: SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract According to one embodiment, there is provided an information processing terminal including a voice input device and a processor. The voice input device receives a voice input. The processor calculates feature data related to the voice input, determines whether the voice input device is blocked, based on the feature data calculated, and generates a notification that the voice input device is blocked according to a determination result indicating that the voice input device is blocked. ## Claims ### Claim 1 An information processing terminal comprising: a voice input device configured to receive voice input; and a processor configured to: calculate feature data related to the voice input to the voice input device; determine whether the voice input device is blocked, based on the feature data calculated; and generate a notification that the voice input device is blocked according to a determination result indicating that the voice input device is blocked. ### Claim 2 (depends on 1) The terminal of claim 1, wherein the processor is further configured to compare the feature data with a threshold value and determine whether the voice input device is blocked based on the number of times that the feature data is less than or equal to the threshold value in succession. ### Claim 3 (depends on 1) The terminal of claim 1, wherein the processor is further configured to compare a history of the feature data in a determination period with a reference pattern that fluctuates in a time series in the determination period and determine whether the voice input device is blocked based on the comparison result for the determination period. ### Claim 4 (depends on 3) The terminal of claim 3, wherein the processor is further configured to calculate a difference between the feature data and the reference pattern at a plurality of timings in the determination period and determine whether the voice input unit is blocked based on the integrated value of the differences at the plurality of timings. ### Claim 5 (depends on 1) The terminal of claim 1, wherein the processor is further configured to compare a history of the feature data in each of a plurality of determination periods of different lengths with a reference pattern that fluctuates in a time series in each of the plurality of determination periods and determine whether the voice input unit is blocked, based on the comparison result for each of the plurality of determination periods. ### Claim 6 (depends on 1) The terminal of claim 1, wherein the processor is further configured to: acquire a voice signal based on the voice input from the voice input device, wherein the processor calculates a sound pressure level related to the voice input based on the voice signal acquired; and store the sound pressure level calculated in a sound pressure level database. ### Claim 7 (depends on 6) The terminal of claim 6, wherein the processor is further configured to acquire the sound pressure level from the sound pressure level database. ### Claim 8 (depends on 7) The terminal of claim 7, wherein the processor is further configured to determine whether the voice input unit is blocked based on the sound pressure level acquired. ### Claim 9 A method for determining an occlusion via an information processing terminal comprising: receiving a voice input via a voice input device; calculating feature data related to the voice input; determining whether the voice input device is blocked, based on the feature data calculated; and generating a notification that the voice input device is blocked according to a determination result indicating that the voice input device is blocked. ### Claim 10 (depends on 9) The terminal of claim 9, further comprising comparing the feature data with a threshold value and determining whether the voice input device is blocked based on the number of times that the feature data is less than or equal to the threshold value in succession. ### Claim 11 (depends on 9) The terminal of claim 9, further comprising comparing a history of the feature data in a determination period with a reference pattern that fluctuates in a time series in the determination period and determining whether the voice input device is blocked based on the comparison result for the determination period. ### Claim 12 (depends on 11) The terminal of claim 11, further comprising calculating a difference between the feature data and the reference pattern at a plurality of timings in the determination period and determining whether the voice input device is blocked based on the integrated value of the differences at the plurality of timings. ### Claim 13 (depends on 9) The terminal of claim 9, further comprising comparing a history of the feature data in each of a plurality of determination periods of different lengths with a reference pattern that fluctuates in a time series in each of the plurality of determination periods and determining whether the voice input device is blocked, based on the comparison result for each of the plurality of determination periods. ### Claim 14 (depends on 9) The terminal of claim 9, further comprising acquiring a voice signal based on the voice input; calculating a sound pressure level related to the voice input based on the voice signal acquired; and storing the sound pressure level calculated in a sound pressure level database. ### Claim 15 (depends on 14) The terminal of claim 14, further comprising acquiring the sound pressure level from the sound pressure level database. ### Claim 16 (depends on 15) The terminal of claim 15, further comprising determining whether the voice input device is blocked based on the sound pressure level acquired.