Patents Assigned to DSP Group, Ltd.
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Publication number: 20130016825Abstract: A method for AES comprising performing AES on a provided state of data elements at the original locations of the data elements in the provided state without moving the data elements in the state, and an apparatus for performing the same.Type: ApplicationFiled: July 12, 2011Publication date: January 17, 2013Applicant: DSP Group Ltd.Inventors: Dvor Efrat, Eran Amir
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Patent number: 8325964Abstract: A wearable surround sound system, that includes: (a) a processor, adapted to receive input signals representative of requested audio signals to be heard by the user and in response to generate multiple output signals; and (b) multiple bone conduction speakers, coupled to the processor, adapted to convey the multiple output signals to at least one bone of a user; wherein the bone conduction speakers are arrayed so as to stimulate an encompassing sound perception of the use. A wearable ambient sound reduction system, that includes: (a) a microphone, adapted to detect an ambient sound signal; (b) a processor adapted to generate an output signal in response to the ambient sound signal; wherein the output signal, when conveyed to a bone of the user, reduces an affect that an ambient sound signal has upon the user; wherein the microphone is coupled to the processor; and (c) a bone conduction speaker, coupled to the processor, adapted to convey the output signal to a bone of a user.Type: GrantFiled: March 19, 2007Date of Patent: December 4, 2012Assignee: DSP Group Ltd.Inventor: David Weisman
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Publication number: 20120264411Abstract: A method for modifying an application framework devised for network-based telephony to operate in a local telephony, comprising adapting the application framework to interact with a communication device operable cooperatively with a local base, and emulating a functionally of the network related to the application framework according to an operation of the local base, at least partially, and an apparatus for using the modified application framework.Type: ApplicationFiled: April 13, 2011Publication date: October 18, 2012Applicant: DSP Group Ltd.Inventor: Avraham Fraenkel
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Publication number: 20120202484Abstract: An apparatus for enabling operation of a LDC network within a DECT system having a modified protocol, comprising an A-field with an identity of a FP shared by both the DECT system and the LDC network, B-fields with unique sync patterns for the DECT system and the LDC network, respectively; and separate dummy bearers for transmission by the FP for the DECT system and the LDC network, respectively, and a method for using the same.Type: ApplicationFiled: January 31, 2012Publication date: August 9, 2012Applicant: DSP Group Ltd.Inventors: Steven DICKINSON, Otmar Rengert, Jochen Kilian, Eli Fogel
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Publication number: 20110234636Abstract: A method and integrated circuit for manipulating two dimensional images. The method and integrated circuit use an on-chip memory buffer comprising four memory elements, and accessed as a rectangle of 4 times an integer number of bytes by a number of lines depending on the image resolution. Each block of the source image is copied from the DRAM into the on-chip memory buffer, and a destination block is determined within the destination image. The destination block is populated by determining the addresses within the on-chip memory buffer comprising the pixels to be copied to the relevant location in the destination block, reading the data from the on-chip memory buffer, and writing it to the destination block. In some embodiments the data may be multiplexed, or bytes may be re-ordered within the read data prior to writing.Type: ApplicationFiled: March 24, 2010Publication date: September 29, 2011Applicant: DSP Group Ltd.Inventors: Yuval Itkin, Yaron Bercovitz
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Publication number: 20110230209Abstract: A mobile device and method for automatically activating an application, based on the location of the mobile device. A user of the mobile device associates a location with an application or a profile to be activated at the particular location. The location can be either absolute, or relative to a second device such as a charger or a docking station. When the mobile device is connected to or in proximity to the absolute location or the second device, the current status or profile of the mobile device is stored, and the indicated application is activated. When the mobile device leaves the destination location, the application or profile stops, and the mobile device resumes its previous profile, or a default profile.Type: ApplicationFiled: March 22, 2010Publication date: September 22, 2011Applicant: DSP Group Ltd.Inventor: Jochen KILIAN
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Publication number: 20110228946Abstract: A method for Comfort Noise Generation (CNG) comprising the steps of recording information of Background Noise (BGN); generating white noise samples; and generating Comfort Noise (CN) by applying coefficients that are extracted from said information of BGN on White Noise (WN) samples.Type: ApplicationFiled: March 22, 2010Publication date: September 22, 2011Applicant: DSP Group Ltd.Inventors: Yaakov CHEN, Mark Raifel
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Publication number: 20110181452Abstract: The method and system use a speaker available in an audio end device when not in use as a microphone. The speaker is utilized for enhancing the sound quality received by the person or device at the near end, i.e., the user of the device, or the speaker at the far end, i.e., the speaker with whom the near-end speaker is communicating. Exemplary applications are shown for such utilization, including single or dual microphone near-end automatic listening enhancement, acoustic echo cancellation or suppression with or without double talk detection, and microphone array noise reduction.Type: ApplicationFiled: January 28, 2010Publication date: July 28, 2011Applicant: DSP Group, Ltd.Inventors: Mark RAIFEL, Yaakov Chen
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Publication number: 20100171760Abstract: A method and system for displaying overlay images on top of base images on a digitally-controlled display device. If the overlay image comprises an area at which only the values of the base image are to be displayed, the area or part thereof is indicated, and pixels of the overlay image within the area are not fetched from an image source and are not mixed with the corresponding values of the pixels of the base area. Thus, multiple fetch and mixing operations are saved, which provide better resource utilization of the system, and bandwidth and processing saving.Type: ApplicationFiled: January 6, 2009Publication date: July 8, 2010Applicant: DSP Group Ltd.Inventor: Yuval Itkin
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Publication number: 20100138724Abstract: A method of error protection for wireless communication of packets of sampled digitized audio data according to a selected communication protocol, comprising: identifying the least significant bits of each sample of audio data encoded in the packets based on the communication protocol used; selectively replacing one or more of the least significant bits with values that enable performing error correction on the rest of the data encoded in the packet; transmitting the altered packet from a transmitting party to a receiving party; using the replaced bits to detect or correct errors in the transmitted packet; wherein said communication protocol uses an ADPCM encoding scheme.Type: ApplicationFiled: December 1, 2008Publication date: June 3, 2010Applicant: DSP Group Ltd.Inventors: Eli Fogel, Mark Raifel
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Publication number: 20070114849Abstract: A regulator circuit, embedded in a device, which is adapted to draw power from a power source internal to the device and a power source external to the device. The regulator circuit includes a first circuit segment for regulating power supplied by the internal power source, a second circuit segment for regulating power supplied by the external power source, an output circuit segment that monitors the output of the regulator circuit and supplies regulated power to the device. Additionally, responsive to the monitoring the regulator circuit preferentially draws power from the second circuit segment and complements the drawn power with power from the first circuit segment to maintain a regulated power supply at the output.Type: ApplicationFiled: November 18, 2005Publication date: May 24, 2007Applicant: DSP Group Ltd.Inventors: Ohad Falik, Yachin Afek, Lior Horwitz
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Patent number: 7054897Abstract: A register file structure efficiently handles matrix and image processing. The register file contains an array of data elements and has modes for accessing of multiple data values that are aligned horizontally or vertically in a data array and for accessing data having different widths for each data value. The different modes allow manipulation of a transposed array without requiring a transpose operation and permit fast horizontal or vertical filtering with parallel access and multiplications of horizontally or vertically aligned data elements.Type: GrantFiled: October 3, 2001Date of Patent: May 30, 2006Assignee: DSP Group, Ltd.Inventor: John Suk-Hyun Hong
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Patent number: 6625630Abstract: A digital signal processor (DSP) includes at least two multipliers, at least two three-input arithmetic logic units (ALU), at least two first-cycle registers, at least two second-cycle registers, and multiplexing apparatus. The digital signal processor is able to perform a Fast Fourier Transform (FFT) calculation in two consecutive processing cycles.Type: GrantFiled: June 5, 2000Date of Patent: September 23, 2003Assignee: DSP Group Ltd.Inventor: Gil Vinitzky
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Patent number: 6535900Abstract: A processor made up of a computation unit, an accumulator unit, a saturation determination unit and a saturation unit. The computation unit operates on one or more operands of W bits. The accumulator unit stores the output of the computation unit, in W bits. The saturation determination unit detects overflow in parallel with latching of the output of the computation unit. Overflow occurs when the operand latched by the accumulator represents a number having more than A significant bits, where A is less than W. The saturation unit provides saturation operands to the computation unit when the operand latched in the accumulator unit represents a number having more than A significant bits. Furthermore, the processor has saturation operands of either (+2A−1−1) or −2A−1. A method for using the processor is also disclosed.Type: GrantFiled: September 8, 1999Date of Patent: March 18, 2003Assignee: DSP Group Ltd.Inventors: Ronen Perets, Yael Gross, Moshe Sheier
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Patent number: 6452517Abstract: A device for performing a search for the optimum code vector in a codebook having N code vectors indexed by i has a controller which considers each ith code vector, and a processor which determines in two clock cycles whether said ith code vector is the current optimal code vector.Type: GrantFiled: August 3, 1999Date of Patent: September 17, 2002Assignee: DSP Group Ltd.Inventor: Gil Vinitzky
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Patent number: 6407961Abstract: A memory array includes a memory unit and a dual access controller. The memory unit stores a multiplicity of words and has a plurality of word lines each of which accesses a row of words. The memory unit is divided into a left memory unit and a right memory unit, each having generally half of the storage space of the memory unit, the left memory unit having left half word lines and the right memory unit having right half word lines. The dual access controller receives a word address N and a word separation amount S and activates the columns and half rows of the memory unit in which a main word and a second word S words from the main word are found. In one embodiment useful for neighboring words, the left memory unit holds the words with even addresses and the right memory unit holds the words with odd addresses. In another embodiment, the left memory unit holds the first four words of an eight word set and the right memory unit holds the second four words.Type: GrantFiled: November 13, 2000Date of Patent: June 18, 2002Assignee: DSP Group, Ltd.Inventors: Ronen Perets, Yael Gross, Bat-Sheva Ovadia, Avigdor Faians, Eran Briman, Rakefet Freedman, Ilana Tal
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Patent number: 5673364Abstract: A speech compression/decompression system and method which do not require special hardware are described. The compression unit represents an input audio signal as a collection of parameters, wherein the parameters are a remnant excitation pulse sequence, a set of spectral coefficients and a set of pitch parameters. The decompression unit utilizes the pitch parameters and remnant excitation pulse sequence to produce a reconstructed excitation signal. The decompression unit also utilizes the spectral coefficients to filter the reconstructed excitation signal into a speech waveform. The compression unit includes a short-term predictor, a two-step long-term predictor and a multi-pulse analyzer.Type: GrantFiled: December 1, 1993Date of Patent: September 30, 1997Assignee: The DSP Group Ltd.Inventor: Leon Bialik