Two dimensional quad integrated power combiner for RF power amplifiers
Granted: June 30, 2015
Patent Number:
9070506
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…
Apparatus and method for amplifying a signal from a transmitter
Granted: June 23, 2015
Patent Number:
9065402
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.
Low power activation of a voice activated device
Granted: May 26, 2015
Patent Number:
9043211
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.…
Power amplifier with an adaptive bias
Granted: May 26, 2015
Patent Number:
9041462
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…
Tunable system and method for tuning a system
Granted: May 5, 2015
Patent Number:
9026068
There is provided a system that includes a tunable amplification module, a coupler, an interface module; a detector that is arranged to output an impedance indicative signal and a power indicative signal; wherein the impedance indicative signal is indicative of an impedance mismatch between an output impedance of the tunable amplification module and an impedance of a radio frequency (RF) antenna as seen by the tunable amplification module, wherein the power indicative signal is…
Fast automatic gain control
Granted: January 20, 2015
Patent Number:
8938036
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.
Device and method for direct mixing of pulse density modulation (PDM) signals
Granted: January 20, 2015
Patent Number:
8937515
A device for mixing multiple (N) pulse density modulated (PDM) bit streams of a bit rate, the device comprises an input logic, an error accumulation circuit, an error correction circuit and an adder of more than N bits; wherein the device is arranged to output an output PDM bit stream that represents a mixture of the multiple input PDM bit streams; wherein the output PDM bit stream comprises a plurality of output PDM bits, wherein a certain output PDM bit of a plurality of output PDM…
Demapper for a multiple-input, multiple-output symbol receiver
Granted: December 9, 2014
Patent Number:
8908815
A method, implementable on a multiple-input, multiple-output symbol receiver, includes selecting a hypothesis for a second symbol value U2 from among the set of fixed constellation points, calculating a hypothesis for a first symbol value U1 from the resultant selected U2 value, and generating a first half of counter-hypotheses from interim results of calculating the hypotheses values.
Method and device for interference mitigation using redundant transmission in separate ISM bands
Granted: July 22, 2014
Patent Number:
8787301
A device for transmitting data packets over a data link, including an interference signal detector adapted to continually detect a frequency of interference signals on the data link, designator adapted to assign a first frequency channel and a first time slot on the data link, wherein the first frequency channels lies within a 2.4 GHz industrial scientific and medical (ISM) band, and adapted to assign a second frequency channel and a second time slot on the data link, wherein the second…
Remote control of transmitter-side rate adaptation
Granted: April 22, 2014
Patent Number:
8705384
In general, this disclosure is directed to techniques for remotely controlling a transmitter-side rate adaptation algorithm. According to one aspect, a method includes detecting, with a receiver device, that a packet received from a transmitter is corrupted. The method further includes sending, with the receiver device, a positive acknowledgement for the packet to the transmitter in response to at least detecting that the packet is corrupted. According to another aspect, a method…
Method and apparatus for adapting a telephony component to operate in a different telephony
Granted: April 15, 2014
Patent Number:
8700018
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.
Method and a system for processing signals
Granted: March 18, 2014
Patent Number:
8675884
A system for processing sound, the system including: (a) a processor, configured to process a first input signal that is detected by a first microphone at a detection moment, a second input signal that is detected by a second microphone at the detection moment, and a third input signal that is detected by a bone-conduction microphone at the detection moment, to generate a corrected signal that is responsive to the first, second, and third input signals; and (b) a communication interface,…
Method and system for managing flash write
Granted: December 17, 2013
Patent Number:
8612670
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.
Method and system for bone conduction sound propagation
Granted: December 4, 2012
Patent Number:
8325964
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…
Method and system for dynamic aliasing suppression
Granted: October 9, 2012
Patent Number:
8285554
A method of for aliasing suppression in a sub-band speaker-phone system, comprising receiving an analog audio signal from a near end analog audio input interface, converting said analog audio signal into a near end digital audio signal using an A2D; receiving N?2 sub-bands decoded digital audio data from a far-end, merging said N?2 sub-bands decoded digital audio data into a wideband (WB) decoded digital audio data to be converted by D2A unit and provided to analog audio output…
Method and apparatus for pulse position modulation
Granted: October 25, 2011
Patent Number:
8044743
A method for reducing the transition rate of a pulse width modulated signal representing an original signal having a predetermined frequency range of interest and producing an output signal, the method including the steps of: combining pulses from a predetermined number of consecutive frames into a combined pulse; and positioning the combined pulse within the predetermined number of consecutive frames, such that the output signal has substantially the same Fourier Transform phase as the…
Cordless telephone system
Granted: May 24, 2011
Patent Number:
7948928
Cordless telephones according to the DECT standard are constantly transmitting a so-called dummy barrier at a certain power level, repetition interval and transmit frequency to apply corrections to the synchronization counters in the portable parts for synchronization to the fixed part. According to the present invention, once timing of the portable part is synchronized to the fixed part, a wired connection is used for applying these small synchronization corrections with respect to the…
Digital phase locked loop
Granted: June 15, 2010
Patent Number:
7738600
Digital communication signals that encode information in the phase may be susceptible to phase error from many sources. A device corrects for carrier and sampling phase errors, as well as additive phase noise. A digital phase locked loop simultaneously tracks the carrier phase error and the sampling phase error, and corrects the signal in the frequency domain. The device may use the sampling phase error to advance or delay the sampling window used to convert the signal from the time…
Semiconductor transistor (DMOS) device for use as a power amplifier
Granted: January 26, 2010
Patent Number:
7652316
The invention relates to in particular a lateral DMOST with a drain extension (8). In the known transistor a further metal strip (20) is positioned between the gate electrode contact strip and the drain contact (16) which is electrically connected with the source region contact (15). In the device proposed here, the connection between the further metal strip (20) and the source contact (15,12) comprises a capacitor (30) and the further metal strip (20) is provided with a further contact…
Automatic level control for radio frequency amplifiers
Granted: December 1, 2009
Patent Number:
7626467
The disclosure relates to an automatic level control technique for RF amplifiers in a communication system, such as a wireless communication system. The invention provides an automatic level control technique to compensate for variations in the gain of an RF amplifier, which may be a transmitter amplifier or a receiver amplifier. In accordance with the invention, the gain of the RF amplifier can be controlled as a function of the output of a voltage controlled oscillator (VCO) circuit…
