公开(公告)号：US20200034117A1

公开(公告)日：2020-01-30

申请号：US16447966

申请日：2019-06-21

Applicant: DSP GROUP LTD.

Inventor： MOSHE HAIUT ,  Assaf Ganor

IPC: G06F7/544 ,  G06F7/498

Abstract: A method and a MAC unit that may include accumulation unit and a multiplier. A accumulation unit that includes a first part, a second part and a third part. The first part may calculate a truncated sum. The second part may be configured to (a) receive, during each calculation cycle, a carry out of an add operation performed during a calculation cycle, (b) receive a sign bit of an intermediate product calculated during the calculation cycle; and (c) calculate, by the counter logic, a counter logic value, and (d) convert, after a start of a last calculation cycle of the calculation cycles, an output value of the counter logic to an intermediate value having a two's complement format. The third part may be configured to calculate an output value of the MAC unit based on the intermediate value and a truncated sum calculated by the first part of the accumulation unit.

公开(公告)号：US10109182B1

公开(公告)日：2018-10-23

申请号：US15652338

申请日：2017-07-18

Applicant: DSP Group Ltd.

Inventor： Uri Yehuday

IPC: G08C23/02 ,  G10L15/22 ,  G10L15/28 ,  G10L21/0232

Abstract: A method and a system for voice command conversion, the system may include one or more microphones for sensing a voice command for controlling an acoustically controlled device; one or more speech recognition units for identifying the voice command; an ultrasonic command generator for generating an ultrasonic command that represents the voice command; and one or more speakers for transmitting the ultrasonic command to the acoustically controlled device.

公开(公告)号：US09774959B2

公开(公告)日：2017-09-26

申请号：US15075246

申请日：2016-03-21

Applicant: DSP Group LTD.

Inventor： Haim Kupershmidt

IPC: H04R19/02 ,  H04R17/00

CPC classification number: H04R19/02 ,  H04R17/00 ,  H04R2201/003 ,  H04R2217/03

Abstract: A MEMS speaker that may include a membrane positioned in a first plane, wherein the membrane may be configured to oscillate at a first frequency thereby generating an ultrasonic acoustic signal; and an acoustic modulator that may include a blind and a shutter; wherein the blind may be positioned in a second plane; wherein the shutter may be positioned in a third plane; wherein the first plane, the second plane and the third plane may be substantially separated from each other; and wherein the acoustic modulator may be configured to (a) receive or generate a shutter control signal and a blind control signal, and (b) modulate, in response to the shutter control signal and the blind control signal, the ultrasonic acoustic signal such that an audio signal may be generated.

公开(公告)号：US20170222547A1

公开(公告)日：2017-08-03

申请号：US15355062

申请日：2016-11-18

Applicant: DSP Group Ltd.

Inventor： MOSHE HAIUT

IPC: H02M3/07

CPC classification number: H02M3/07

Abstract: A method for charge-reuse, the method may include performing multiple repetitions of the steps of: operating a second capacitive load while the second capacitive load is disconnected from a first capacitive load; wherein the second capacitive load is a Microelectromechanical systems (MEMS) capacitive load or a Nanoelectromechanical systems (NEMS) capacitive load; electrically coupling a first capacitive load to a second capacitive load via a path that comprises an inductor; charging the first capacitive load with a second charge provided from the second capacitive load; electrically disconnecting the first capacitive load, the second capacitive load and the inductor from each other; feeding the inductor with a supply current provided by a supply circuit; disconnecting the inductor from the supply circuit and coupling the inductor to the first capacitive load; charging the first capacitive load by the inductor; electrically coupling the first capacitive load to the second capacitive load via the path that comprises the inductor; charging the second capacitive load with a first charge provided from the first capacitive load; and operating the second capacitive load while the second capacitive load is disconnected from the first capacitive load.

公开(公告)号：US09681373B2

公开(公告)日：2017-06-13

申请号：US14298987

申请日：2014-06-09

Applicant: DSP Group LTD.

Inventor： Graham Kenneth Smith

IPC: H04W84/12 ,  H04W88/02 ,  H04W52/02

CPC classification number: H04W52/0206 ,  H04W52/0225 ,  H04W52/0232 ,  H04W84/12 ,  H04W88/02 ,  Y02D70/00 ,  Y02D70/142

Abstract: A method for activating a wireless communication device, the method may include receiving, by the wireless communication device, a sequence of periodic transmissions; estimating, for each periodic transmission of the sequence of periodic transmissions and before a reception of the periodic transmission, an expected time of arrival of the periodic transmission; calculating, for each periodic transmission, a timing difference attribute that is responsive to at least a difference between a timing of arrival of the periodic transmission and an expected time of arrival of the periodic transmission; selecting a selected periodic transmission out of the sequence of periodic transmissions, wherein the selected periodic transmission is associated with a smallest timing difference attribute out of the timing difference attributes associated with the periodic transmissions of the sequence of periodic transmissions; estimating, before a reception of a future periodic transmission that does not belong to the sequence of periodic transmissions, an estimated time of arrival of the future periodic transmission in response to the selecting of the selected periodic transmission and a periodic transmission period; determining a wakening time for wakening the wireless communication device in response to the estimated time of arrival of the future periodic transmission; and wakening the wireless communication device at the wakening time and searching for the future periodic transmission.

公开(公告)号：US09673820B2

公开(公告)日：2017-06-06

申请号：US14697644

申请日：2015-04-28

Applicant: DSP Group LTD.

Inventor： Assaf Ganor

IPC: H04L7/00 ,  H04L5/00 ,  H03K19/0185 ,  H03K3/012 ,  H03K3/013 ,  H03K3/037 ,  H03K19/20 ,  H03K5/00

CPC classification number: H03K19/018507 ,  H03K3/012 ,  H03K3/013 ,  H03K3/037 ,  H03K5/00 ,  H03K19/20 ,  H03K2005/00013

Abstract: A scheme is described that provides for a low latency, glitch free chip interface that does not require a clock. This invention handles input transitions that are skewed and also input transitions that are momentary. A change in an input state initiates a pulse that propagates through the system and samples the new input state after a delay. If there is a difference between the sampled input state and the present input state, then a new pulse is initiated in order to avoid any illegal transitions at the output.

公开(公告)号：US09648417B2

公开(公告)日：2017-05-09

申请号：US15072428

申请日：2016-03-17

Applicant: DSP Group LTD.

Inventor： Haim Kupershmidt ,  Moti Margalit

IPC: H04R3/00 ,  H04R19/02

CPC classification number: H04R3/00 ,  H01L41/042 ,  H04R3/005 ,  H04R19/02 ,  H04R2201/003

Abstract: A method of charge reuse, the method may include repeating the steps of: electrically coupling a first group of capacitive loads to a second group of capacitive loads; wherein the capacitive loads of the first group and of the second group are Microelectromechanical systems (MEMS) capacitive loads or Nanoelectromechanical systems (NEMS) capacitive loads; charging the second group with a first charge provided from the first group; electrically disconnecting the first group from the second group; operating the second group while using the first charge; electrically coupling the first group to the second group; charging the first group with a second charge provided from the second group; electrically disconnecting the first group from the second group; and operating the first group while using the second charge.

公开(公告)号：US20170070199A1

公开(公告)日：2017-03-09

申请号：US15268598

申请日：2016-09-18

Applicant: DSP Group LTD.

Inventor： Sergey Anderson ,  Ron Pongratz ,  Eli Schwartz ,  Ilya Sima

IPC: H03F3/213 ,  H04B1/04 ,  H03F1/02 ,  H03F3/195 ,  H03F3/21

CPC classification number: H03F3/213 ,  B82Y10/00 ,  B82Y40/00 ,  H03F1/02 ,  H03F1/0216 ,  H03F1/0227 ,  H03F1/0261 ,  H03F3/195 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F3/265 ,  H03F2200/102 ,  H03F2200/18 ,  H03F2200/294 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/21106 ,  H03F2203/21142 ,  H04B1/0475 ,  H04B1/44 ,  H04B2001/045

Abstract: An integrated circuit that includes a die with an active radio frequency (RF) unit embedded thereon; a first port for receiving an output signal from the active RF unit; a harmonic filter that comprises a first harmonic filter inductor; and a first RF inductive load that is electrically coupled to the first port and is magnetically coupled to the first harmonic filter inductor.

公开(公告)号：US09564145B2

公开(公告)日：2017-02-07

申请号：US14318705

申请日：2014-06-30

Applicant: DSP Group LTD.

Inventor： Yaakov Chen

IPC: G10L21/02 ,  A61B5/00 ,  A61B5/22 ,  G10L25/69 ,  A61B5/12 ,  G10L21/0364

CPC classification number: G10L21/0205 ,  A61B5/123 ,  A61B5/225 ,  A61B5/6898 ,  G10L21/0364 ,  G10L25/69

Abstract: Methods and systems are provided for enhancing speech intelligibility in electronic devices. During outputting of acoustic signal via an electronic device, measurement of forces applied by user of the electronic device against the device (or enclosure thereof) may be obtained. The force measurements may be used to assess and/or estimate the listening intelligibility experienced by the user. Further, the force measurements may be used to control or adjust a listening intelligibility stage applied during generation and/or processing of the acoustic signals that are outputted via the electronic device. In some instances, an audio input, corresponding to ambient noise affecting intelligibility, may be obtained, and may be used to control or assist in controlling the listening intelligibility stage.

Abstract translation: 提供了用于增强电子设备中的语音清晰度的方法和系统。 在通过电子设备输出声信号期间，可以获得对电子设备的用户施加的装置（或其外壳）施加的力的测量。 力测量可以用于评估和/或估计用户经历的听觉清晰度。 此外，力测量可以用于控制或调整在通过电子设备输出的声信号的生成和/或处理期间应用的聆听清晰度级。 在一些情况下，可以获得对应于影响可懂度的环境噪声的音频输入，并且可以用于控制或协助控制听觉清晰度阶段。

公开(公告)号：US09484977B2

公开(公告)日：2016-11-01

申请号：US14277427

申请日：2014-05-14

Applicant: DSP Group, Ltd.

Inventor： Sergey Anderson ,  Sharon Betzalel

IPC: H04B1/44 ,  H04B1/48

CPC classification number: H04B1/44 ,  H04B1/48

Abstract: The present invention is a novel and useful RF transformer based transmit/receive (TX/RX) integrated RF switch. In one embodiment of the invention, the TX/RX RF switch circuit is based on the use of an RF transformer which functions as (1) the PA output transformer during TX mode and (2) as a series inductance in an LNA matching network during receive mode. Thus, the RF transformer plays a dual function or role. Antenna diversity is achieved by having multiple antennas each having an associated antenna switch connected to the output transformer. The TX/RX switch of the invention reduces the number of switches required for antenna diversity to a minimum and minimizes RF losses in the system. The TX/RX switch is suitable for use with modern wireless communication standards such as DECT, 802.11 WLAN, Bluetooth, ZigBee, etc. The configuration of the TX/RX circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes.

Abstract translation: 本发明是一种新颖且有用的基于RF变压器的发射/接收（TX / RX）集成RF开关。 在本发明的一个实施例中，TX / RX RF开关电路基于使用RF变压器，其在TX模式期间用作（1）PA输出变压器，以及（2）作为LNA匹配网络中的串联电感 接收模式。 因此，RF变压器具有双重功能或作用。 通过将多个天线各自具有连接到输出变压器的相关联的天线开关来实现天线分集。 本发明的TX / RX开关将天线分集所需的开关数量减少到最小，并使系统中的RF损耗最小化。 TX / RX开关适用于现代无线通信标准，如DECT，802.11 WLAN，蓝牙，ZigBee等。TX / RX电路的配置允许使用常见的，相对较低成本的半导体制造技术，如标准 CMOS工艺。