Qualcomm Incorporated

Pengjun Huang

Christian Pietsch

Christoph A Joetten

Marc W Werner

Christian Sgraja

Arasanipalai K Ananthapadmanabhan

Eddie-Lun Tik Choy

Andrew P Dejaco

Wolfgang Granzow

Georg Frank

Khaled Helmi El-Maleh

Sharath Manjunath

Nikolai K N Leung

Ananthapadmanabhan Arasanipalai Kandhadai

Lei Ma

Fan Deng

Yuriy Reznik

Te-Won Lee

Shizhong Liu

Hyun-Mook Cho

Eugene Baik

Karthikeyan Shanmugavadivelu

Duck-hoon Kim

Narayana Karthik Sadanandam Ravirala

Ethan Robert Duni

Wan Shun Vincent Ma

Andrew P DeJaco

Eddie Lun Tik Choy

Baozhong Zheng

Ronald Karyodisa

Sarath Manjunath

Ethan R Duni

Eugene J Baik

Nikolai Kn Leung

Duck-Hoon Kim

Nikolai KN Leung

Arasanipali K Ananthapadmanabhan

Techniques and systems are provided for performing object recognition for video frames. For example, one or more video frames of a first video are obtained. The one or more video frames have a first resolution and include one or more objects. The one or more objects are detected in the one or more video frames of the first video based on object detection being performed on the one or more video frames. One or more video frames of a second video are also obtained. The one or more video frames of the second video also include the one or more objects and have a second resolution that is greater than the first resolution. An object recognition process is performed on the one or more video frames of the second video to recognize or identify the one or more objects detected in the one or more video frames of the first video. In some cases, feedback associated with the object detection and/or the object recognition process can be obtained, and a resolution of the first video and/or a resolution of the second video can be adjusted based on the feedback.

Adaptive object detection and recognition

Systems, devices, and methods of displaying and/or recording multiple pictures in a picture (PIP) on the same display of a digital display device are disclosed. The PIPs can show objects from the main field view of the display device, such as a front camera lens, as well as objects from a different field of view, such as a back camera lens. The PIPs can further track the objects that are being displayed.

Systems, devices and methods for displaying pictures in a picture

A method, which is performed by an electronic device, for adjusting at least one image capturing parameter in a preview mode is disclosed. The method may include capturing a preview image of a scene including at least one text object based on a set of image capturing parameters. The method may also identify a plurality of text regions in the preview image. From the plurality of text regions, a target focus region may be selected. Based on the target focus region, the at least one image capturing parameter may be adjusted.

Image capturing parameter adjustment in preview mode

A method performed by an electronic device is described. The method includes obtaining sensor information. The method also includes identifying a class of an object based on the sensor information. The method further includes determining one or more actions based on the sensor information, the class of the object and an action usage history. The method additionally includes performing at least one of the one or more actions based on at least one application.

Systems and methods for context-aware application control

A system is provided for transmitting information through a speech codec (in-band) such as found in a wireless communication network. A modulator transforms the data into a spectrally noise-like signal based on the mapping of a shaped pulse to predetermined positions within a modulation frame, and the signal is efficiently encoded by a speech codec. A synchronization sequence provides modulation frame timing at the receiver and is detected based on analysis of a correlation peak pattern. A request/response protocol provides reliable transfer of data using message redundancy, retransmission, and/or robust modulation modes dependent on the communication channel conditions.

System and method of an in-band modem for data communications over digital wireless communication networks

Apparatus and method of obtaining non-speech data embedded in vocoder packet

A method and apparatus for predictively quantizing voiced speech includes a parameter generator and a quantizer. The parameter generator is configured to extract parameters from frames of predictive speech such as voiced speech, and to transform the extracted information to a frequency-domain representation. The quantizer is configured to subtract a weighted sum of the parameters for previous frames from the parameter for the current frame. The quantizer is configured to quantize the difference value. A prototype extractor may be added to first extract a pitch period prototype to be processed by the parameter generator.

Method and apparatus for predictively quantizing voiced speech

A scalable speech and audio codec is provided that implements combinatorial spectrum encoding. A residual signal is obtained from a Code Excited Linear Prediction (CELP)-based encoding layer, where the residual signal is a difference between an original audio signal and a reconstructed version of the original audio signal. The residual signal is transformed at a Discrete Cosine Transform (DCT)-type transform layer to obtain a corresponding transform spectrum having a plurality of spectral lines. The transform spectrum spectral lines are transformed using a combinatorial position coding technique. The combinatorial position coding technique includes generating a lexicographical index for a selected subset of spectral lines, where each lexicographic index represents one of a plurality of possible binary strings representing the positions of the selected subset of spectral lines. The lexicographical index represents non-zero spectral lines in a binary string in fewer bits than the length of the binary string.

Low-complexity encoding/decoding of quantized MDCT spectrum in scalable speech and audio codecs

A system and method for detection of rate determination algorithm errors in variable rate communications system receivers. The disclosed embodiments prevent rate determination algorithm errors from causing audible artifacts such as screeches or beeps. The disclosed system and method detects frames with incorrectly determined data rates and performs frame erasure processing and/or memory state clean up to prevent propagation of distortion across multiple frames. Frames with incorrectly determined data rates are detected by checking illegal rate transitions, reserved bits, validating unused filter type bit combinations and analyzing relationships between fixed code-book gains and linear prediction coefficient gains.

Method and apparatus for improved detection of rate errors in variable rate receivers

A low-bit-rate coding technique for unvoiced segments of speech, without loss of quality compared to the conventional Code Excited Linear Prediction (CELP) method operating at a much higher bit rate. A set of gains are derived from a residual signal after whitening the speech signal by a linear prediction filter. These gains are then quantized and applied to a randomly generated sparse excitation. The excitation is filtered, and its spectral characteristics are analyzed and compared to the spectral characteristics of the original residual signal. Based on this analysis, a filter is chosen to shape the spectral characteristics of the excitation to achieve optimal performance.

Method and apparatus for high performance low bit-rate coding of unvoiced speech

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San Diego, CA, United States of America

Pengjun Huang