Patents Assigned to DSP Group, Ltd.
  • Publication number: 20130016825
    Abstract: 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: Application
    Filed: July 12, 2011
    Publication date: January 17, 2013
    Applicant: DSP Group Ltd.
    Inventors: Dvor Efrat, Eran Amir
  • Patent number: 8325964
    Abstract: 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: Grant
    Filed: March 19, 2007
    Date of Patent: December 4, 2012
    Assignee: DSP Group Ltd.
    Inventor: David Weisman
  • Publication number: 20120264411
    Abstract: 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: Application
    Filed: April 13, 2011
    Publication date: October 18, 2012
    Applicant: DSP Group Ltd.
    Inventor: Avraham Fraenkel
  • Publication number: 20120202484
    Abstract: 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: Application
    Filed: January 31, 2012
    Publication date: August 9, 2012
    Applicant: DSP Group Ltd.
    Inventors: Steven DICKINSON, Otmar Rengert, Jochen Kilian, Eli Fogel
  • Publication number: 20110234636
    Abstract: 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: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Applicant: DSP Group Ltd.
    Inventors: Yuval Itkin, Yaron Bercovitz
  • Publication number: 20110230209
    Abstract: 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: Application
    Filed: March 22, 2010
    Publication date: September 22, 2011
    Applicant: DSP Group Ltd.
    Inventor: Jochen KILIAN
  • Publication number: 20110228946
    Abstract: 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: Application
    Filed: March 22, 2010
    Publication date: September 22, 2011
    Applicant: DSP Group Ltd.
    Inventors: Yaakov CHEN, Mark Raifel
  • Publication number: 20110181452
    Abstract: 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: Application
    Filed: January 28, 2010
    Publication date: July 28, 2011
    Applicant: DSP Group, Ltd.
    Inventors: Mark RAIFEL, Yaakov Chen
  • Publication number: 20100171760
    Abstract: 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: Application
    Filed: January 6, 2009
    Publication date: July 8, 2010
    Applicant: DSP Group Ltd.
    Inventor: Yuval Itkin
  • Publication number: 20100138724
    Abstract: 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: Application
    Filed: December 1, 2008
    Publication date: June 3, 2010
    Applicant: DSP Group Ltd.
    Inventors: Eli Fogel, Mark Raifel
  • Publication number: 20070114849
    Abstract: 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: Application
    Filed: November 18, 2005
    Publication date: May 24, 2007
    Applicant: DSP Group Ltd.
    Inventors: Ohad Falik, Yachin Afek, Lior Horwitz
  • Patent number: 7054897
    Abstract: 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: Grant
    Filed: October 3, 2001
    Date of Patent: May 30, 2006
    Assignee: DSP Group, Ltd.
    Inventor: John Suk-Hyun Hong
  • Patent number: 6625630
    Abstract: 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: Grant
    Filed: June 5, 2000
    Date of Patent: September 23, 2003
    Assignee: DSP Group Ltd.
    Inventor: Gil Vinitzky
  • Patent number: 6535900
    Abstract: 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: Grant
    Filed: September 8, 1999
    Date of Patent: March 18, 2003
    Assignee: DSP Group Ltd.
    Inventors: Ronen Perets, Yael Gross, Moshe Sheier
  • Patent number: 6452517
    Abstract: 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: Grant
    Filed: August 3, 1999
    Date of Patent: September 17, 2002
    Assignee: DSP Group Ltd.
    Inventor: Gil Vinitzky
  • Patent number: 6407961
    Abstract: 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: Grant
    Filed: November 13, 2000
    Date of Patent: June 18, 2002
    Assignee: DSP Group, Ltd.
    Inventors: Ronen Perets, Yael Gross, Bat-Sheva Ovadia, Avigdor Faians, Eran Briman, Rakefet Freedman, Ilana Tal
  • Patent number: 5673364
    Abstract: 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: Grant
    Filed: December 1, 1993
    Date of Patent: September 30, 1997
    Assignee: The DSP Group Ltd.
    Inventor: Leon Bialik