Patents by Inventor Kazuhito Koishida
Kazuhito Koishida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9349376Abstract: An audio decoder provides a combination of decoding components including components implementing base band decoding, spectral peak decoding, frequency extension decoding and channel extension decoding techniques. The audio decoder decodes a compressed bitstream structured by a bitstream syntax scheme to permit the various decoding components to extract the appropriate parameters for their respective decoding technique.Type: GrantFiled: April 9, 2015Date of Patent: May 24, 2016Assignee: Microsoft Technology Licensing, LLCInventors: Kazuhito Koishida, Sanjeev Mehrotra, Chao He, Wei-Ge Chen
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Publication number: 20150382138Abstract: Mobile devices provide a variety of techniques for presenting messages from sources to a user. However, when the message pertains to the presence of the user at a location, the available communications techniques may exhibit deficiencies, e.g., reliance on the memory of the source and/or user of the existence and content of a message between its initiation and the user's visit to the location, or reliance on the communication accessibility of the user, the device, and/or the source during the user's location visit. Presented herein are techniques for enabling a mobile device, at a first time, to receive a request to present an audio message during the presence of the user at a location; and, at a second time, detecting the presence of the user at the location, and presenting the audio message to the user, optionally without awaiting a request from the user to present the message.Type: ApplicationFiled: June 26, 2014Publication date: December 31, 2015Inventors: Raja Bose, Hiroshi Horii, Jonathan Lester, Ruchita Bhargava, Kazuhito Koishida, Michelle L. Holtmann, Christina Chen
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Publication number: 20150213804Abstract: An audio decoder provides a combination of decoding components including components implementing base band decoding, spectral peak decoding, frequency extension decoding and channel extension decoding techniques. The audio decoder decodes a compressed bitstream structured by a bitstream syntax scheme to permit the various decoding components to extract the appropriate parameters for their respective decoding technique.Type: ApplicationFiled: April 9, 2015Publication date: July 30, 2015Inventors: Kazuhito Koishida, Sanjeev Mehrotra, Chao He, Wei-Ge Chen
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Patent number: 9026452Abstract: An audio decoder provides a combination of decoding components including components implementing base band decoding, spectral peak decoding, frequency extension decoding and channel extension decoding techniques. The audio decoder decodes a compressed bitstream structured by a bitstream syntax scheme to permit the various decoding components to extract the appropriate parameters for their respective decoding technique.Type: GrantFiled: February 4, 2014Date of Patent: May 5, 2015Assignee: Microsoft Technology Licensing, LLCInventors: Kazuhito Koishida, Sanjeev Mehrotra, Chao He, Wei-Ge Chen
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Patent number: 8996557Abstract: Various embodiments enable audio data, such as music data, to be captured, by a device, from a background environment and processed to formulate a query that can then be transmitted to a content recognition service. In one or more embodiments, multiple queries are transmitted to the content recognition service. In at least some embodiments, subsequent queries can progressively incorporate previous queries plus additional data that is captured. In one or more embodiments, responsive to receiving the query, the content recognition service can employ a multi-stage matching technique to identify content items responding to the query. This matching technique can be employed as queries are progressively received.Type: GrantFiled: May 18, 2011Date of Patent: March 31, 2015Assignee: Microsoft Technology Licensing, LLCInventors: Kazuhito Koishida, David Nister, Ian Simon, Tom Butcher
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Patent number: 8880545Abstract: Various embodiments enable audio data, such as music data, to be captured, by a device, from a background environment and processed to formulate a query that can then be transmitted to a content recognition service. In one or more embodiments, multiple queries are transmitted to the content recognition service. In at least some embodiments, subsequent queries can progressively incorporate previous queries plus additional data that is captured. In one or more embodiments, responsive to receiving the query, the content recognition service can employ a multi-stage matching technique to identify content items responding to the query. This matching technique can be employed as queries are progressively received.Type: GrantFiled: May 18, 2011Date of Patent: November 4, 2014Assignee: Microsoft CorporationInventors: Kazuhito Koishida, David Nister, Ian Simon, Tom Butcher
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Publication number: 20140172429Abstract: Systems, methods, and computer-readable storage media for facilitating local recognition of audio content at a user device. In some embodiments, the method includes capturing, using a user device, audio data, at least some of which is processable to recognize the audio data. Thereafter, an audio fingerprint that uniquely represents perceptual information associated with the audio data is generated, and a local data store within the user device is referenced. Such a local data store can include reference audio fingerprints. Upon referencing the local data store, a determination can be made as to whether the generated audio fingerprint matches a reference audio fingerprint at least to an extent.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: MICROSOFT CORPORATIONInventors: THOMAS C. BUTCHER, KAZUHITO KOISHIDA, IAN STUART SIMON
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Publication number: 20140161263Abstract: Systems, methods, and computer-readable storage media for facilitating recognition of real-time content are provided. In embodiments, a new audio fingerprint associated with live audio being presented is received. In accordance with the received audio fingerprint, at least one previously received fingerprint associated with the live audio from a real-time index is removed. Thereafter, the real-time index is updated to include the new audio fingerprint associated with the live audio being presented. Such a real-time index having the new audio fingerprint can be used to recognize the live audio being presented and, thereafter, an indication of the recognized live audio can be provided to the user device.Type: ApplicationFiled: December 10, 2012Publication date: June 12, 2014Applicant: MICROSOFT CORPORATIONInventors: KAZUHITO KOISHIDA, THOMAS C. BUTCHER, IAN STUART SIMON
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Publication number: 20140156287Abstract: An audio decoder provides a combination of decoding components including components implementing base band decoding, spectral peak decoding, frequency extension decoding and channel extension decoding techniques. The audio decoder decodes a compressed bitstream structured by a bitstream syntax scheme to permit the various decoding components to extract the appropriate parameters for their respective decoding technique.Type: ApplicationFiled: February 4, 2014Publication date: June 5, 2014Applicant: Microsoft CorporationInventors: Kazuhito Koishida, Sanjeev Mehrotra, Chao He, Wei-Ge Chen
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Patent number: 8645146Abstract: An audio decoder provides a combination of decoding components including components implementing base band decoding, spectral peak decoding, frequency extension decoding and channel extension decoding techniques. The audio decoder decodes a compressed bitstream structured by a bitstream syntax scheme to permit the various decoding components to extract the appropriate parameters for their respective decoding technique.Type: GrantFiled: August 27, 2012Date of Patent: February 4, 2014Assignee: Microsoft CorporationInventors: Kazuhito Koishida, Sanjeev Mehrotra, Chao He, Wei-Ge Chen
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Patent number: 8457958Abstract: An audio encoder encodes side information into a compressed audio bitstream containing encoding parameters used by the encoder for one or more encoding techniques, such as a noise-mask-ratio curve used for rate control. A transcoder uses the encoder generated side information to transcode the audio from the original compressed bitstream having an initial bit-rate into a second bitstream having a new bit-rate. Because the side information is derived from the original audio, the transcoder is able to better maintain audio quality of the transcoding. The side information also allows the transcoder to re-encode from an intermediate decoding/encoding stage for faster and lower complexity transcoding.Type: GrantFiled: November 9, 2007Date of Patent: June 4, 2013Assignee: Microsoft CorporationInventors: Kazuhito Koishida, Sanjeev Mehrotra, Wei-Ge Chen
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Patent number: 8412525Abstract: Embodiments for implementing a speech recognition system that includes a speech classifier ensemble are disclosed. In accordance with one embodiment, the speech recognition system includes a classifier ensemble to convert feature vectors that represent a speech vector into log probability sets. The classifier ensemble includes a plurality of classifiers. The speech recognition system includes a decoder ensemble to transform the log probability sets into output symbol sequences. The speech recognition system further includes a query component to retrieve one or more speech utterances from a speech database using the output symbol sequences.Type: GrantFiled: April 30, 2009Date of Patent: April 2, 2013Assignee: Microsoft CorporationInventors: Kunal Mukerjee, Kazuhito Koishida, Shankar Regunathan
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Patent number: 8386271Abstract: A scalable audio codec encodes an input audio signal as a base layer at a high compression ratio and one or more residual signals as an enhancement layer of a compressed bitstream, which permits a lossless or near lossless reconstruction of the input audio signal at decoding. The scalable audio codec uses perceptual transform coding to encode the base layer. The residual is calculated in a transform domain, which includes a frequency and possibly also multi-channel transform of the input audio. For lossless reconstruction, the frequency and multi-channel transforms are reversible.Type: GrantFiled: March 25, 2008Date of Patent: February 26, 2013Assignee: Microsoft CorporationInventors: Kazuhito Koishida, Sanjeev Mehrotra, Radhika Jandhyala
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Publication number: 20130016852Abstract: An array of microphones placed on a mobile robot provides multiple channels of audio signals. A received set of audio signals is called an audio segment, which is divided into multiple frames. A phase analysis is performed on a frame of the signals from each pair of microphones. If both microphones are in an active state during the frame, a candidate angle is generated for each such pair of microphones. The result is a list of candidate angles for the frame. This list is processed to select a final candidate angle for the frame. The list of candidate angles is tracked over time to assist in the process of selecting the final candidate angle for an audio segment.Type: ApplicationFiled: July 14, 2011Publication date: January 17, 2013Applicant: MICROSOFT CORPORATIONInventors: Shankar Regunathan, Kazuhito Koishida, Harshavardhana Narayana Kikkeri
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Publication number: 20120323584Abstract: An audio decoder provides a combination of decoding components including components implementing base band decoding, spectral peak decoding, frequency extension decoding and channel extension decoding techniques. The audio decoder decodes a compressed bitstream structured by a bitstream syntax scheme to permit the various decoding components to extract the appropriate parameters for their respective decoding technique.Type: ApplicationFiled: August 27, 2012Publication date: December 20, 2012Applicant: Microsoft CorporationInventors: Kazuhito Koishida, Sanjeev Mehrotra, Chao He, Wei-Ge Chen
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Publication number: 20120296458Abstract: Various embodiments enable audio data, such as music data, to be captured, by a device, from a background environment and processed to formulate a query that can then be transmitted to a content recognition service. In one or more embodiments, the audio data is captured prior to receiving user input associated with audio data capture, e.g., launch of an application associated with the content recognition service, provision of user input proactively indicating that audio data capture is desired, and the like. Responsive to transmitting the query, displayable information associated with the audio data is returned by the content recognition service and can be consumed by the device.Type: ApplicationFiled: May 18, 2011Publication date: November 22, 2012Applicant: Microsoft CorporationInventors: Kazuhito Koishida, David Nister, Ian Simon, Tom Butcher
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Publication number: 20120296938Abstract: Various embodiments enable audio data, such as music data, to be captured, by a device, from a background environment and processed to formulate a query that can then be transmitted to a content recognition service. In one or more embodiments, multiple queries are transmitted to the content recognition service. In at least some embodiments, subsequent queries can progressively incorporate previous queries plus additional data that is captured. In one or more embodiments, responsive to receiving the query, the content recognition service can employ a multi-stage matching technique to identify content items responding to the query. This matching technique can be employed as queries are progressively received.Type: ApplicationFiled: May 18, 2011Publication date: November 22, 2012Applicant: Microsoft CorporationInventors: Kazuhito Koishida, David Nister, Ian Simon, Tom Butcher
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Patent number: 8255229Abstract: An audio decoder provides a combination of decoding components including components implementing base band decoding, spectral peak decoding, frequency extension decoding and channel extension decoding techniques. The audio decoder decodes a compressed bitstream structured by a bitstream syntax scheme to permit the various decoding components to extract the appropriate parameters for their respective decoding technique.Type: GrantFiled: January 27, 2011Date of Patent: August 28, 2012Assignee: Microsoft CorporationInventors: Kazuhito Koishida, Sanjeev Mehrotra, Chao He, Wei-Ge Chen
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Publication number: 20110196684Abstract: An audio decoder provides a combination of decoding components including components implementing base band decoding, spectral peak decoding, frequency extension decoding and channel extension decoding techniques. The audio decoder decodes a compressed bitstream structured by a bitstream syntax scheme to permit the various decoding components to extract the appropriate parameters for their respective decoding technique.Type: ApplicationFiled: January 27, 2011Publication date: August 11, 2011Applicant: MICROSOFT CORPORATIONInventors: Kazuhito Koishida, Sanjeev Mehrotra, Chao He, Wei-Ge Chen
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Patent number: 7962335Abstract: Techniques and tools related to delayed or lost coded audio information are described. For example, a concealment technique for one or more missing frames is selected based on one or more factors that include a classification of each of one or more available frames near the one or more missing frames. As another example, information from a concealment signal is used to produce substitute information that is relied on in decoding a subsequent frame. As yet another example, a data structure having nodes corresponding to received packet delays is used to determine a desired decoder packet delay value.Type: GrantFiled: July 14, 2009Date of Patent: June 14, 2011Assignee: Microsoft CorporationInventors: Hosam A. Khalil, Tian Wang, Kazuhito Koishida, Xiaoqin Sun, Wei-Ge Chen