Patents Assigned to DSP Group, Ltd.
  • Patent number: 9338780
    Abstract: An ultra low energy (ULE) digital enhanced cordless telecommunication (DECT) base station that includes a scheduler that is arranged to dynamically determine a schedule of transmissions of broadcast messages and of paging messages to be received by DECT ULE devices; a dummy bearer generator arranged to generate dummy bearers in response to the schedule; wherein each dummy bearer comprises a multiple usage field and a usage indicative field; wherein the usage indicative field is indicative of a selected usage of the multiple usage field; wherein the selected usage purpose is selected out of at least a conveyance of a broadcast message and a conveyance of a paging message; a configuration module that is arranged to generate location information indicative of a location of at least one bit allocated within at least one dummy bearer for indicating, when flagged, of a presence of a paging message or a broadcast message aimed to at least one of the DECT ULE devices; and a transmitter that is arranged to transmit to
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 10, 2016
    Assignee: DSP GROUP LTD.
    Inventors: Haim Kupershmidt, Arie Gur, Jochen Kilian
  • Patent number: 9332585
    Abstract: A method for coordinating an encoder and a decoder in a wireless communication system employing discontinuous transmission, the method comprising performing a syncless reset command on the encoder and the decoder, in order to bring the encoder and decoder into stable and compatible states. The syncless reset command can be implemented by setting the variables of the encoder and decoder into predetermined values, or by performing a normal reset command followed by encoding or decoding a predetermined number of predetermined sample values.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: May 3, 2016
    Assignee: DSP GROUP LTD.
    Inventor: Arie Gur
  • Patent number: 9312820
    Abstract: A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: April 12, 2016
    Assignee: DSP GROUP LTD.
    Inventors: Alexander Mostov, Yaron Hasson, Ron Pongratz, Sharon Betzalel
  • Patent number: 9294050
    Abstract: A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: March 22, 2016
    Assignee: DSP Group Ltd.
    Inventors: Alexander Mostov, Yaron Hasson
  • Patent number: 9271076
    Abstract: Methods and systems are provided for enhanced stereo audio recordings in electronic devices. Stereophonic recording performance in an electronic device, using a first microphone and a second microphone in the electronic device, may be assessed; and processing of signals generated by the first microphone and the second microphone may be configured based on the assessed stereophonic recording performance. The configuring may comprises adaptively modifying the processing to enhance stereophonic recording performance, to match or approximate an ideal performance. The assessing of the stereophonic recording in the electronic device may be based on a type of each of the first microphone and the second microphone, and/or based on a spacing therebetween. The processing may be adaptively modified to simulate directional reception of signals by the first microphone and the second microphone when the microphones are omnidirectional.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: February 23, 2016
    Assignee: DSP Group LTD.
    Inventors: Arie Heiman, Moshe Haiut, Uri Yehuday
  • Patent number: 9209783
    Abstract: A device, comprising a first interpolator that is configured to (a) receive, at a first clock rate, a first signal having a first sampling rate and (b) output, at a second clock rate, a second signal having a first desired sampling rate average; wherein the first interpolator comprises: a first buffer for storing the first signal; and a first fractional sampling ratio circuit that is configured to generate a first pattern of fixed point values, wherein an average value of the first pattern corresponds to a first desired sampling rate ratio between the first desired sampling rate average and the first sampling rate.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: December 8, 2015
    Assignee: DSP GROUP LTD.
    Inventors: Yosef Bendel, Eyal Rosin, Assaf Ganor
  • Patent number: 9208943
    Abstract: A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, BLUETOOTH®, ZIGBEE®, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: December 8, 2015
    Assignee: DSP GROUP LTD.
    Inventors: Sergey Anderson, Alexander Mostov, Eli Schwartz, Ron Pongratz
  • Patent number: 9154236
    Abstract: A system may be provided and may include a first transmitter; a first antenna, coupled to the first transmitter; wherein the first transmitter is arranged to transmit via the first antenna first radio frequency (RF) signals; a first receiver; a second antenna, coupled to the first receiver; the second antenna differs from the first antenna; an RF acquisition module that is arranged to acquire second RF signals that are representative of the first RF signals; and an RF suppression module, arranged to receive the second RF signals and to generate RF suppression signals for suppressing an effect of a transmission of the first RF signals on the first receiver, and to provide the RF suppression signals to the first receiver.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: October 6, 2015
    Assignee: DSP Group LTD.
    Inventors: Haim Kupershmidt, Kobi Ben Atar, Naftali Chayat, Moshe Haiut
  • Patent number: 9143157
    Abstract: A digital to analog converter that may include a digital gain block; an analog gain block; a digital to analog conversion (DAC) block and a controller that is configured to: determine a digital gain factor, selected out of multiple digital gain factors, of the digital gain block and an analog gain factor, selected out of multiple analog gain factors of the analog gain block; wherein the DAC block is preceded by the digital gain block and is followed by the analog gain block; wherein the digital gain block is configured to multiply a digital input signal by the digital gain factor to provide an intermediate digital signal; wherein the DAC block is configured to convert the intermediate digital signal to a converted analog signal; and wherein the analog gain block is configured to multiply the converted analog signal by the analog gain factor to provide an output signal; wherein an increment of the analog gain factor results in a decrement of the digital gain factor.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: September 22, 2015
    Assignee: DSP GROUP LTD.
    Inventor: Ori Elyada
  • Patent number: 9143093
    Abstract: A system that includes an amplification circuit; a resonant circuit that is arranged to receive the amplified signal and to output an resonant circuit output signal; wherein the resonant circuit comprises a continually tuned variable capacitor; a transformer that is arranged to receive the resonant circuit output signal and to output a transformer output signal; a coupler that is arranged to sample the transformer output signal and a reflected signal and to output a first signal that represents the transformer output signal and a second signal that represents a reflected signal; a detector that is arranged to receive the first and second signals and to output an impedance indicative signal a control circuit that is arranged to generate the resonant circuit tuning signal in response to the impedance indicative signal and for compensating for the impedance mismatch.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: September 22, 2015
    Assignee: DSP GROUP LTD.
    Inventors: Solon Jose Spiegel, Lior Blanka
  • Patent number: 9136838
    Abstract: A dual pole dual through switch for switching between at least four states. The switch comprises four transistors such as N-channel Metal Oxide Semiconductor transistors, such that at each state at most one transistor is in “on” state, and the others are in “off” state. Each transistor has its own control circuit, which provides zero or negative voltage to the drain of the transistor, positive voltage to the source of the transistor, and control alternating voltage to the gate of the transistor. The switch can be used on-chip for devices. Such devices may include a base station or a handset of a cordless phone.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: September 15, 2015
    Assignee: DSP GROUP LTD.
    Inventors: Yaron Hasson, Alex Mostov
  • Patent number: 9129502
    Abstract: A method and range monitoring system for verifying that communication between two communicating units is of satisfactory quality and that the units are within a predetermined range from one another, wherein the units are in non-continuous communication. One or both units test that the quality and distance by sending a signal to the other unit, and expecting a response signal. If no response signal is received, an alert is fired. The check is initiated upon a trigger, such as a timer, a sensed motion, or a user-initiated event such as when the user presses a button.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: September 8, 2015
    Assignee: DSP Group LTD.
    Inventors: Yaron Naim, Jochen Kilian, Yuval Itkin
  • Patent number: 9124965
    Abstract: Methods and systems are provided for adaptively managing a plurality of microphones and speakers in an electronic device. A mode of operation of the electronic device may be determined, and operation of at least one speaker may be managed, based on the determined mode of operation. The managing may comprise adaptively switching or modifying functions of the at least one speaker. For example, the at least one speaker may be configured to act as microphone or as vibration detector. Input obtained using the at least one speaker may be utilized in optimizing audio related functions, such as noise reduction and/or acoustic echo canceling.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: September 1, 2015
    Assignee: DSP Group LTD.
    Inventors: Arie Heiman, Uri Yehuday, Roei Roeimi
  • Patent number: 9105395
    Abstract: A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: August 11, 2015
    Assignee: DSP GROUP LTD.
    Inventors: Avi Cohen, Michael Gulko
  • Patent number: 9088897
    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: Grant
    Filed: January 31, 2012
    Date of Patent: July 21, 2015
    Assignee: DSP GROUP LTD.
    Inventors: Steven Dickinson, Otmar Rengert, Jochen Kilian, Eli Fogel
  • Patent number: 9086443
    Abstract: The subject matter discloses an apparatus configured for detecting type of a connection of an electrical module to an electrical node of an electrical circuit, the apparatus comprising a pulse generator configured for generating a first pulse; and a sampling circuit configured for applying a reaction of the electrical circuit on the first pulse to provide a sampled pulse and for detecting the type of connection from the sampled pulse. The electrical module comprising a capacitor or an inductor.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: July 21, 2015
    Assignee: DSP GROUP LTD.
    Inventor: Efi Vaturi
  • Patent number: 9070506
    Abstract: A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: June 30, 2015
    Assignee: DSP GROUP, LTD.
    Inventors: Sergey Anderson, Alexander Mostov
  • Patent number: 9065402
    Abstract: The subject matter discloses a method of amplifying a signal, the method comprising receiving a command to start transmission, gradually increasing a value of an enable signal used to amplify the transmission and intermittently transmitting the value of the enable signal to an enable transistor used to allow amplifying a transmitted signal.
    Type: Grant
    Filed: July 5, 2010
    Date of Patent: June 23, 2015
    Assignee: DSP GROUP LTD.
    Inventor: Svetlana Kantor
  • Patent number: 9043211
    Abstract: In a mobile device, a bone conduction or vibration sensor is used to detect the user's speech and the resulting output is used as the source for a low power Voice Trigger (VT) circuit that can activate the Automatic Speech Recognition (ASR) of the host device. This invention is applicable to mobile devices such as wearable computers with head mounted displays, mobile phones and wireless headsets and headphones which use speech recognition for the entering of input commands and control. The speech sensor can be a bone conduction microphone used to detect sound vibrations in the skull, or a vibration sensor, used to detect sound pressure vibrations from the user's speech. This VT circuit can be independent of any audio components of the host device and can therefore be designed to consume ultra-low power. Hence, this VT circuit can be active when the host device is in a sleeping state and can be used to wake the host device on detection of speech from the user.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: May 26, 2015
    Assignee: DSP GROUP LTD.
    Inventors: Moshe Haiut, Arie Heiman, Uri Yehuday
  • Patent number: 9041462
    Abstract: An electronic circuit, including, a power amplifier adapted to amplify an RF signal and provide it as output from the integrated circuit; a power source that is adapted to provide an unregulated voltage to the power amplifier; a regulator adapted to provide a regulated bias voltage; a subtracter that is adapted to accept a voltage proportional to the unregulated voltage and subtract it from the bias voltage to provide a reference voltage to the power amplifier; wherein the power amplifier is adapted to use the reference voltage to adjust the output from the power amplifier so that it will provide a stable power output.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: May 26, 2015
    Assignee: DSP GROUP LTD.
    Inventor: Svetlana Kantor