DSP Group Ltd. Patent applications |
Patent application number | Title | Published |
20150070097 | CONFIGURABLE MULTIMODE MULTIBAND INTEGRATED DISTRIBUTED POWER AMPLIFIER - A novel and useful configurable radio frequency (RF) power amplifier (PA) and related front end module (FEM) circuit that enables manipulation of the operating point of the power amplifier resulting in configurability, multimode and multiband operating capability. The configurable PA also 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 configurable power amplifier is made up of one or more configurable sub-amplifiers having each constructed to have several orders of freedom (i.e. biasing points). Each sub-amplifier and its combiner path include active and passive elements. Manipulating one or more biasing points of each sub-amplifier, and therefore of the aggregate power amplifier as well, achieves multimode and multiband operation. Biasing points include, for example, the gain and saturation point, frequency response, linearity level and EVM. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provides efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers. | 03-12-2015 |
20140376453 | DYNAMIC SENSITIVITY CONTROL FOR WIRELESS DEVICES - A wireless communication device that includes an interface and a processor; wherein the interface is arranged to receive input signals; wherein the processor is arranged to: calculate an input signal's attribute; and determine an attribute of a collision avoidance scheme in response to the input signal's attribute. | 12-25-2014 |
20140337036 | LOW POWER ACTIVATION OF A VOICE ACTIVATED DEVICE - 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. This VT circuit will be resistant to outside noise and react solely to the user's voice. | 11-13-2014 |
20140292412 | AMPLIFIER LINEARIZATION USING PREDISTORTION - A device and method of predistortion linearization that account for both EVM and spectral mask are disclosed. The device and method are based on transforming the predistorter optimization problem from the time domain to the frequency domain, and weighting the equations according to one or more desired objectives. One objective focuses on abiding by the spectral mask, whereas another objective focuses on improving the EVM. | 10-02-2014 |
20140204986 | Apparatus and Method for Correcting IQ Imbalance - The subject matter discloses an apparatus residing within an RF chip, comprising:
| 07-24-2014 |
20140146927 | ADAPTIVE PROCESSOR - A method and adaptive processor for estimating a reference signal, comprising receiving or determining a number of groups and respective group sizes, each group associated with a range of delay values of the reference signal, determining a multiplicity of coefficients, each coefficient associated with a specific delay of the reference signal, determining a multiplicity of weights, each weight associated with one of the groups, multiplying each sample of the reference signal having a delay by a corresponding coefficient to obtain a first product, and summing a multiplicity of first products associated with a group into a group sum signal sample, and multiplying each group sum by a weight associated with the group to obtain a second product, and summing all second products to obtain an estimated signal value. | 05-29-2014 |
20140087673 | CMOS Based TX/RX Switch - 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. | 03-27-2014 |
20140087672 | CMOS Based RF Antenna Switch - 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. | 03-27-2014 |
20140087671 | Radio Frequency Front End Module Circuit Incorporating An Efficient High Linearity Power Amplifier - 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. | 03-27-2014 |
20140087667 | SYSTEM FOR ALLOWING CO-EXISTENCE OF TRANSCEIVERS - 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. | 03-27-2014 |
20140085008 | ENVELOPE TRACKING SIGNAL GENERATOR INCORPORATING TRIM CELL - 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. | 03-27-2014 |
20140085006 | Efficient Linear Integrated Power Amplifier Incorporating Low And High Power Operating Modes - 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. | 03-27-2014 |
20140085002 | Two Dimensional Quad Integrated Power Combiner for RF Power Amplifiers - 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. | 03-27-2014 |
20140085001 | LINEAR ROW ARRAY INTEGRATED POWER COMBINER FOR RF POWER AMPLIFIERS - 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. | 03-27-2014 |
20140084880 | DC-DC CONVERTER INCORPORATING TRIM CELL - 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. | 03-27-2014 |
20140084700 | RF Power Amplifier Splitter - 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. | 03-27-2014 |
20130308771 | METHOD AND APPARATUS FOR HIERARCHICAL ADAPTIVE FILTER - A method and apparatus for filtering a reference signal by a series of taps having coefficients, comprising dividing the taps into at least one layer of a plurality of groups, each group comprising a plurality of taps, as a first layer, forming a plurality of coefficients arranged in at least one group, as at least one subsequent layer and forwarding multiply-accumulate results of each group in each layer sequentially to the at least one group in the at least one subsequent layer to generate an output signal, and adjusting the coefficients based on an error signal formed as a difference between the output signal and a received input signal related to the reference signal and an interim error signal as a difference between the input signal and a summation of the multiply-accumulate results of at least one layer. | 11-21-2013 |
20130308729 | DEMAPPER FOR A MULTIPLE-INPUT, MULTIPLE-OUTPUT SYMBOL RECEIVER - A method, implementable on a multiple-input, multiple-output symbol receiver, includes selecting a hypothesis for a second symbol value U | 11-21-2013 |
20130265921 | METHOD AND SYSTEM FOR SIGNALING BY BIT MANIPULATION IN COMMUNICATION PROTOCOLS - In a communication environment configured to transfer data from a transmitting end to a receiving end according to a wireless device communication protocol, said wireless device communication protocol is configured with a field comprising a first content, a method for signaling, comprising: replacing the first content of the field with a second content, the second content is a result of a bit manipulation on said first content of the field; transmitting said second content of the field, by the transmitting end, of the second content of the field is requested and transmitting the first content of the field when signaling of the second content of the field is not required; receiving said second content of the field or first content of the field by the receiver end; and determining if a signaling was performed according to said first content of the field or said second content of the field. | 10-10-2013 |
20130252562 | HIGH POWER HIGH ISOLATION LOW CURRENT CMOS RF SWITCH - A novel and useful RF switch that comprises four transistors configured to have four operating states, wherein at any time at most one transistor is in ‘on’ state. The switch is an on-chip switch and is constructed in using CMOS processes and technology. The switch is optionally a double pole, double throw (DPDT) switch. The switch can be used in numerous mobile devices such as a cellular phone or in the handset or base station of a cordless phone. The switch optionally selects between two antennas and between transmitter and receiver circuits. Within the switch, at least one of the at least four transistors is optionally an N-channel Metal Oxide Semiconductor (NMOS) transistor. The switch can further comprise one or more logic control circuits providing biasing voltages to one or more of the transistors. Within the switch, the control circuit comprises logic components for providing appropriate biasing voltages to the drain, source and gate terminals of the transistors in the switch. | 09-26-2013 |
20130249634 | POWER AMPLIFIER WITH AN ADAPTIVE BIAS - 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. | 09-26-2013 |
20130244595 | RF SWITCH IMPLEMENTATION IN CMOS PROCESS - 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. | 09-19-2013 |
20130230111 | NON-SYNCHRONIZED ADPCM WITH DISCONTINUOUS TRANSMISSION - 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. | 09-05-2013 |
20130221990 | DETECTING A CONNECTION TYPE OF A PIN - 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. | 08-29-2013 |
20130195230 | FAST AUTOMATIC GAIN CONTROL - A device and method of fast automatic gain control in quadrature receivers are disclosed. The AGC activity between the I and Q branches is split where in one branch the receive chain is in a certain gain state and in the other branch the receive chain is in another possible gain state, resulting in a significant shortening of the AGC duration of any IQ receiver. | 08-01-2013 |
20130127010 | INTEGRATED CIRCUIT INCLUDING A DIFFERENTIAL POWER AMPLIFIER WITH A SINGLE ENDED OUTPUT AND AN INTEGRATED BALUN - An integrated circuit, including, a die with an electronic circuit embedded thereon; wherein the electronic circuit includes a differential power amplifier and pads to electronically interface with the electronic circuit; a packaging encasing the die with contact pins to connect between the integrated circuit and external elements; wires connecting between the pads and the contact pins; a converter that includes capacitors and inductors to combine the outputs from the differential power amplifier to form a single ended output at one of the contact pins; wherein inherent inductance of some of the wires serve as the inductors of the converter. | 05-23-2013 |
20130117496 | METHOD AND SYSTEM FOR MANAGING FLASH WRITE - A method for managing flash memory operations in a flash memory, comprising; assigning a state code to said flash memory operations; updating a state code flag with the assigned state code upon completion of each of said flash memory operations; wherein the assignment of said state codes is selected in a way that each of said updating a state code flag is performed by changing of one bit of the state code flag from one to zero. | 05-09-2013 |
20130016825 | METHOD AND APPRATUS FOR ADVANCED ENCRYPTION STANDARDAANM Efrat; DvorAACI Rishon Le-ZionAACO ILAAGP Efrat; Dvor Rishon Le-Zion ILAANM Amir; EranAACI Givat AdaAACO ILAAGP Amir; Eran Givat Ada IL - 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. | 01-17-2013 |
20130015828 | LOW POWER LOW-DROPOUT LINEAR VOLTAGE REGULATORAANM AMIR; EranAACI Givat AdaAACO ILAAGP AMIR; Eran Givat Ada IL - An integrated circuit, including: a low dropout regulator configured to output regulated power to a device that can be in standard mode drawing power from the regulator or in idle mode during which it substantially does not draw power from the regulator; a capacitor in parallel to the regulator's output configured to be charged when the regulator is enabled and to provide power instead of the regulator when the regulator is disabled; a control configured to disable and enable the regulator; wherein the control is configured to disable the regulator when the device is in idle mode and enable the regulator when the device is in standard mode; and wherein during idle mode the control enables the regulator at various times to prevent the charge of the capacitor from decreasing more than a pre-selected amount. | 01-17-2013 |
20120264411 | METHOD AND APPARATUS FOR ADAPTING A TELEPHONY COMPONENT TO OPERATE IN A DIFFERENT TELEPHONY - 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. | 10-18-2012 |
20120202484 | SYSTEM AND METHOD OF DUAL NETWORK WITH A SHARED BASE - 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. | 08-09-2012 |
20110234636 | METHOD AND INTEGRATED CIRCUIT FOR IMAGE MANIPULATION - 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. | 09-29-2011 |
20110230209 | Method and Mobile Device for Automatic Activation of Applications - A mobile device and method for automatically activating an application, based on the location of the mobile device. | 09-22-2011 |
20110228946 | COMFORT NOISE GENERATION METHOD AND SYSTEM - 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. | 09-22-2011 |
20110181452 | Usage of Speaker Microphone for Sound Enhancement - 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. | 07-28-2011 |
20100171760 | METHOD AND APPARATUS FOR PRESENTING OVERLAY IMAGES - 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. | 07-08-2010 |
20100138724 | ADAPTIVE ERROR PROTECTION FOR WIRELESS COMMUNICATIONS - 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. | 06-03-2010 |