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1. 发明申请

US20230021144A1 IN-EAR DETECTION UTILIZING EARBUD FEEDBACK MICROPHONE 有权
公开(公告)号：US20230021144A1
公开(公告)日：2023-01-19
申请号：US17936218
申请日：2022-09-28
申请人： DSP Group Ltd.
发明人： Gabriel SEIDEN
IPC分类号： H04R1/10 , H04R29/00
摘要： A method for in-ear detection, the method may include transmitting test signals, by a speaker of an earbud, during a test period, and while the earbud is operating at a first operational mode, wherein the test signals comprise at least one first test signal within a first frequency range, at least one second test signal within a second frequency range, and at one third test signal within a third frequency range; wherein the first frequency range, the second frequency range and the third frequency range differ from each other and are within a human auditory range; generating, by a feedback microphone of the earbud, sensed information that is indicative of audio signals sensed by the feedback microphone as a result of the transmitting of the test signals; and determining whether the earbud is located within an ear of a person, wherein the determining is based on the sensed information and a reference out of ear spectrum.

2. 发明授权

US11503398B2 In-ear detection utilizing earbud feedback microphone 有权
公开(公告)号：US11503398B2
公开(公告)日：2022-11-15
申请号：US17169317
申请日：2021-02-05
申请人： DSP Group Ltd.
发明人： Gabriel Seiden
IPC分类号： H04R1/10 , H04R29/00
摘要： A method for in-ear detection, the method may include transmitting test signals, by a speaker of an earbud, during a test period, and while the earbud is operating at a first operational mode, wherein the test signals comprise at least one first test signal within a first frequency range, at least one second test signal within a second frequency range, and at one third test signal within a third frequency range; wherein the first frequency range, the second frequency range and the third frequency range differ from each other and are within a human auditory range; generating, by a feedback microphone of the earbud, sensed information that is indicative of audio signals sensed by the feedback microphone as a result of the transmitting of the test signals; and determining whether the earbud is located within an ear of a person, wherein the determining is based on the sensed information and a reference out of ear spectrum.

3. 发明授权

US11475888B2 Speech pre-processing in a voice interactive intelligent personal assistant 有权
公开(公告)号：US11475888B2
公开(公告)日：2022-10-18
申请号：US16396808
申请日：2019-04-29
申请人： DSP Group Ltd.
发明人： Yaakov Chen , Dima Khaykin
IPC分类号： G10L15/22 , G10L15/08 , G10L21/0364
摘要： A method for speech level adaptation, the method includes: (A) Receiving, by a voice interactive intelligent personal assistant, multiple input audio signals that includes first and second groups of input audio signals. (B) Buffering the multiple input audio signals. (C) Searching for a voice trigger in the first group of input audio signals. When finding the voice trigger then (D) Determining a linear gain factor to be applied on the second group of buffered audio signals, (E) Applying the linear gain factor on the second group of buffered audio signals to provide the output audio signals; and (F) applying a speech recognition process on the output audio signals to detect an audio command embedded in the output audio signals.

4. 发明授权

US11128371B2 Digital enhanced cordless telecommunications system and method 有权
公开(公告)号：US11128371B2
公开(公告)日：2021-09-21
申请号：US16404769
申请日：2019-05-07
申请人： DSP Group Ltd.
发明人： Nir Kalfus , Haim Ben-Sinior , Otmar Rengert
IPC分类号： H04B7/26 , H04M1/725 , H04M1/72502
摘要： A DECT system and a method for communicating between a DECT fixed point and multiple DECT portable points. The method may include step (a) of communicating between a master communication processor of the DECT fixed point and one or more DECT portable points during master communication slots. The method may also include step (b) of communicating between a slave communication processor of the DECT fixed point and at least one of the DECT portable points during slave communication slots. Step (a) and step (b) are executed according to an allocation of master communication slots and slave communication slots, wherein the allocation facilitates concurrent slave communication processor communications and master communication processor communications.

5. 发明申请

US20210176811A1 TRUE WIRELESS STEREO SYSTEM AND METHOD 有权
公开(公告)号：US20210176811A1
公开(公告)日：2021-06-10
申请号：US16949804
申请日：2020-11-13
申请人： DSP Group Ltd.
发明人： Dotan Sokolov , Shlomi Cohen , Venkatesh Gangaiah
IPC分类号： H04W76/19 , H04W56/00 , H04W12/04
摘要： A wireless audio system that may include a first wireless transceiver that is configured to receive audio information from an audio source over a bi-directional wireless link; a second wireless transceiver that is configured to sniff audio information sent over the bi-directional wireless link; and wherein the first and second wireless transceivers are configured to share sniff enabling information, over a shared link and before an establishment of the bi-directional wireless link.

6. 发明申请

US20210091730A1 LOW NOISE AMPLIFIER WITH IMPROVED LINEARITY IN LOW GAIN MODE 有权
公开(公告)号：US20210091730A1
公开(公告)日：2021-03-25
申请号：US17008472
申请日：2020-08-31
申请人： DSP Group Ltd.
发明人： Sergey Anderson
IPC分类号： H03F3/19 , H03F1/32
摘要： A low noise amplifier that includes a first cascode, a second cascode, an input circuit, an output node, a first switch, and a second switch. A source of a first common gate transistor and a drain of a first common source transistor of the first cascode are coupled to a first node of the low noise amplifier. The output node is coupled to a drain of the first common gate transistor, and to a drain of a second common gate transistor of the second cascode, thereby coupling the first cascode and the second cascode to a power supply via a load. The first switch is coupled between a gate of the first common gate transistor and the power supply. The second switch is coupled between the first node and the power supply. The first switch is configured to be open and the second switch is configured to be closed when the low noise amplifier operates at a first operational node. The first switch is configured to be closed and the second switch is configured to be open when the low noise amplifier operates at a second operational node that differs from the first operational mode by at least a gain of the low noise amplifier.

7. 发明授权

US10212683B2 System for allowing registration of DECT devices 有权
公开(公告)号：US10212683B2
公开(公告)日：2019-02-19
申请号：US13792473
申请日：2013-03-11
申请人： DSP Group LTD.
发明人： Jochen Kilian , Otmar Rengert
IPC分类号： H04W60/00 , H04M1/727
摘要： A system may be provided and may include a trusted DECT device; and a DECT base station; wherein the trusted DECT device is arranged to send, to the DECT base station, registration allowable DECT device credentials; wherein the DECT base station is arranged to: receive from a requesting DECT device a request for registration of the requesting DECT device to the DECT base station; wherein the request comprises requesting DECT device credentials; register the requesting DECT device to the DECT base station if the requesting DECT device credentials match the registration allowable DECT device credentials; and prevent a registration of the requesting DECT device to the DECT base station if the requesting DECT device credentials differ from the registration allowable DECT device credentials.

8. 发明授权

US09859791B2 High efficiency high voltage charge pump actuator for capacitive load 有权
公开(公告)号：US09859791B2
公开(公告)日：2018-01-02
申请号：US15355062
申请日：2016-11-18
申请人： DSP Group Ltd.
发明人： Moshe Haiut
IPC分类号： H02M3/07 , H02H7/00 , B23K11/24 , H02M1/42
CPC分类号： H02M3/07
摘要： 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.

9. 发明授权

US09653989B2 Suppying an output voltage using unsynchronized direct current to direct current converters 有权
公开(公告)号：US09653989B2
公开(公告)日：2017-05-16
申请号：US13956390
申请日：2013-08-01
申请人： Assaf Ganor
发明人： Assaf Ganor
IPC分类号： H02M3/04 , H02J1/00 , H02M3/158
CPC分类号： H02M3/04 , H02J1/00 , H02M3/1584 , Y10T307/305
摘要： A system that may include a first direct current to direct current (DC) converter that is arranged to determine at a first determination rate whether to alter a parameter of operation of the first DC to DC converter and to selectively alter the parameter of operation of operation of the first DC to DC converter in response to the determination; and a second switched-mode DC to DC converter that is arranged to determine at a second determination rate whether to alter the parameter of operation of the second DC to DC converter and to selectively alter the parameter of operation of operation of the second DC to DC converter in response to the determination. The second determination rate is higher by at least a factor of two than the first determination rate. The first and second DC to DC converters are mutually unsynchronized.

10. 发明授权

US09608577B2 Radio frequency front end module circuit incorporating an efficient high linearity power amplifier 有权
公开(公告)号：US09608577B2
公开(公告)日：2017-03-28
申请号：US14033960
申请日：2013-09-23
申请人： DSP Group, Ltd.
发明人： Alexander Mostov , Sergey Anderson , Udi Suissa , Ilya Sima , Avi Bauer
IPC分类号： H03F1/56 , H01F38/14 , H03F3/213 , H03F3/195 , H02M3/156 , H02M3/04 , H01F27/28 , H01F27/29 , H01F38/00 , H03F3/19 , H03F3/21 , H03F3/68 , H03F3/193 , H04B1/44 , H01F19/04 , H03F1/02 , H03F3/45 , H01L23/522 , H01L23/64 , H01L23/66 , H02M1/00
CPC分类号： H03F1/565 , H01F19/04 , H01F27/2804 , H01F27/29 , H01F38/00 , H01F38/14 , H01L23/5227 , H01L23/645 , H01L23/66 , H01L2223/6655 , H01L2223/6672 , H01L2924/0002 , H02M3/04 , H02M3/1563 , H02M2001/0012 , H03F1/0227 , H03F1/0261 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/21 , H03F3/211 , H03F3/213 , H03F3/45179 , H03F3/68 , H03F2200/102 , H03F2200/105 , H03F2200/387 , H03F2200/451 , H03F2200/534 , H03F2200/537 , H03F2200/541 , H04B1/44 , Y02D70/00 , H01L2924/00
摘要： 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.

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