PATENT CLAIM ANALYSIS

Application Number: 15883667
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["381", "094300"]

Abstract:
The present technique relates to an earhole-wearable sound collection device, a signal processing device, and a sound collection method for realizing sound collection at a high S/N ratio, with noise influence being reduced not by a noise reduction process. In the earhole-wearable sound collection device, a microphone that collects emitted speech voice is provided in a space that is substantially sealed off from outside and connects to an ear canal of the wearer (the speaker). With the microphone being located in the space sealed off from outside, emitted speech voice that propagates through the ear canal of the wearer is collected. In a sound collection signal obtained through the ear canal, the emitted speech voice component is dominant over the noise component particularly at low frequencies. Therefore, the S/N ratio of an emitted speech voice collection signal can be improved by extracting the low-frequency component of the sound collection signal with the use of a LPF, for example. Alternatively, an equalizing process for reducing muffled sound that is generated when sound is collected through the ear canal is performed on the sound collection signal. As a result, higher sound quality can be achieved.

Claim (Index 3):
The speech processing apparatus according to  claim 1 , further comprising a low-pass filter configured to perform a low-pass filtering process on the collected voice signal.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 2.32967
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14360948', '14360959', '14992906', '12115349', '14955022']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7277824294069215
- 35 USC 102 Novelty (BERT): 0.5489063643324346
- Combined Prediction Score: 0.7098948228994728
- Mean Citation Score: 322.268752
- Max Citation Score: 420.6068
- Similarity Product: 331.7964803949118

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test