公开(公告)号：EP4411517A2

公开(公告)日：2024-08-07

申请号：EP24183427.4

申请日：2020-04-01

Applicant: RichWave Technology Corp.

Inventor： Chen, Tse-Peng

IPC: G06F3/01

CPC classification number: G01S13/886 ,  G01S13/56 ,  G01S13/524 ,  G01S13/536 ,  G06F3/017 ,  G01S13/04 ,  G01S7/03 ,  G08B13/2491

Abstract: Method and apparatus for detecting motion of an object in an environment, the method including transmitting a first wireless signal related to a transmission signal and receiving a second wireless signal related to an incoming signal, wherein the second wireless signal is a reflected first wireless signal from the object, obtaining a modulation signal related to a combination of the transmission and incoming signals, wherein the modulation signal contains a Doppler shift caused by the motion of the object, extracting a signal envelope varied by the Doppler shift from the modulation signal, and determining whether motion of the object is detected in accordance with the signal envelope.

公开(公告)号：EP4084328A1

公开(公告)日：2022-11-02

申请号：EP21218244.8

申请日：2021-12-30

Applicant: RichWave Technology Corp.

Inventor： Chen, Chih-Sheng ,  Peng, Tien-Yun

IPC: H03F1/30 ,  H03F3/19 ,  H03F3/24 ,  H03G3/30

Abstract: A bias compensation circuit comprises a detecting circuit, comprising a diode-connected transistor circuit, with a first end for receiving a first current, and a second end coupled to a first reference voltage end; and a first diode circuit, with a first end for receiving a second current, and a second end coupled to the first reference voltage end; wherein the detecting circuit provides a first voltage level according to the diode-connected transistor circuit, and provides a second voltage level according to the first diode circuit; a voltage-current converting circuit, coupled to the detecting circuit, for generating a first reference current according to the first voltage level and the second voltage level; and a bias circuit, coupled to the voltage-current converting circuit, for receiving the first reference current, to provide a bias voltage level according to the first reference current.

公开(公告)号：EP3817048A1

公开(公告)日：2021-05-05

申请号：EP20204913.6

申请日：2020-10-30

Applicant: RichWave Technology Corp.

Inventor： Chao, Chuan-Chen ,  Pai, Ching-Yao

IPC: H01L27/02 ,  H02H9/04

Abstract: An integrated circuit (10) includes a signal pad (100), receiving an input signal during a normal mode, and receive an ESD signal during an ESD mode; an internal circuit (102), processing the input signal during the normal mode; a variable impedance circuit (104), comprising a first end coupled to the signal pad (100), a second end coupled to the internal circuit (102), and providing a low or high impedance path between the signal pad (100) and the internal circuit (102) during the normal or ESD mode; and a switch circuit (106), comprising a first end coupled to a control end of the variable impedance circuit (104), and a control end receiving a node voltage (Vn), wherein the switch circuit (106) switches the control end of the variable impedance circuit (104) to have a first specific voltage or be electrically floating during the normal or ESD mode.

公开(公告)号：EP3809596A1

公开(公告)日：2021-04-21

申请号：EP20197211.4

申请日：2020-09-21

Applicant: RichWave Technology Corp.

Inventor： CHEN, Chih-Sheng ,  TSAI, Hsien-Huang

IPC: H03K17/693 ,  G01R15/04 ,  H03K17/74

Abstract: A radio frequency device (200) and a voltage generating device (210) thereof are provided. The voltage generating device (210) includes a first transistor (211), a second transistor (212), and a voltage dividing circuit (213). A first terminal of the first transistor (211) receives a first voltage. A first terminal of the second transistor (212) receives a second voltage. A first connection terminal and a second connection terminal of the voltage dividing circuit (213) are respectively coupled to second terminals of the first transistor (211) and the second transistor (212). The voltage dividing circuit (213) generates a first divided voltage (Vdl) and a second divided voltage (Vd2). The first divided voltage (Vdl) is used as an output voltage of the voltage generating device (210). The second divided voltage (Vd2) is output as a control voltage to a control terminal of the first transistor (211) and a control terminal of the second transistor (212).

公开(公告)号：EP3800482A1

公开(公告)日：2021-04-07

申请号：EP20198960.5

申请日：2020-09-29

Applicant: RichWave Technology Corp.

Inventor： Chi, Hsiang-Feng

IPC: G01S7/41 ,  G01S7/35 ,  G01S13/58 ,  G01S13/86 ,  G01S13/88 ,  G01S13/931

Abstract: An object recognition method includes generating a first frequency domain signal according to a first echo signal, updating at least one parameter (Wil to Win, Whl to Whp) of a primary classifier (160) according to the first frequency domain signal and a training target (T1, T2, T3, T4) corresponding to the first frequency domain signal, generating a second frequency domain signal according to a second echo signal, and generating object classification data corresponding to the second frequency domain signal according to the second frequency domain signal and the at least one parameter (Wil to Win, Whl to Whp) of the primary classifier (160). The object classification data is associated with presence of a second object.

公开(公告)号：EP3451014A1

公开(公告)日：2019-03-06

申请号：EP18175441.7

申请日：2018-06-01

Applicant: RichWave Technology Corp.

Inventor： Chi, Hsiang-Feng

IPC: G01S7/02 ,  G01S13/00 ,  G01S13/02 ,  G01S13/34 ,  H04B1/707

Abstract: A signal processing system (100) includes a transmission module (Tm1) and a receiving module (Rm1). The transmission module (Tm1) generates and transmits a transmitted radio frequency signal (Stx1) according to a data signal (Sdata1) and a first spread vector (v11). The transmission module includes a spread spectrum unit (Usf1), a digital-to-analog converter (Udac1) and a mixer (Umx11). The spread spectrum unit (Usf1) generates a spread spectrum signal according to the data signal and the first spread vector. The digital-to-analog converter (Udac1) generates an analog signal according to the spread spectrum signal. The mixer (Umx11) mixes the analog signal and a carrier signal so as to generate the transmitted radio frequency signal. The receiving module (Rm1)receives a received radio frequency signal (Srx1) and a second spread vector (v12) so as to generate a spectrum despread signal (Sdf1) and generate object detection information data accordingly. The received radio frequency signal is generated by having the transmitted radio frequency signal reflected by a measured object (Od).

公开(公告)号：EP2403134A3

公开(公告)日：2015-07-01

申请号：EP10189160.4

申请日：2010-10-28

Applicant: RichWave Technology Corp.

Inventor： Chen, Tse-Peng

IPC: H03B5/12 ,  H03K17/693 ,  H03J5/02

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1265 ,  H03B2201/0266 ,  H03J3/20 ,  H03J2200/10

Abstract: An oscillator circuit having a source of an oscillating signal, a tank circuit including an inductor (18, 420, 421) and a capacitor (18, 420, 421), and a discretely switchable capacitance module (14, 314) configured to control an amount of capacitance in the oscillator circuit. The discretely switchable capacitance module (14, 314) includes, a capacitor (22, 322) coupled between a first node (41, 341) and a second node (42, 342), a switch (24, 320) coupled between the second node (42, 322) and a third node (43, 343); and a DC feed circuit (28, 328, 329), having a first end (28a, 328a, 329a) coupled to the second node (42) and a second end (28b, 328b, 329b) configured to receive a first or second control signal (30, 330). The control node (25, 325) of the switch (24, 320) is tied to a predetermined bias voltage (26, 326). When the first control signal (30, 330) is applied, the capacitor (22) is coupled between the first node (41, 341) and the third node (43, 343) via the switch (24, 320), and when the second control signal (30, 330) is applied the capacitor (22) is decoupled from the inductor (18, 420, 421).

公开(公告)号：EP2416358A2

公开(公告)日：2012-02-08

申请号：EP11167603.7

申请日：2011-05-26

Applicant: RichWave Technology Corp.

Inventor： Chen, Ja-Hao

IPC: H01L23/522

CPC classification number: H01L23/5227 ,  H01L23/528 ,  H01L2924/0002 ,  H01L2924/00

Abstract: The invention provides an electronic device and method for fabricating the same, and a spiral inductor device and method for fabricating the same. The electronic device includes a substrate and a conductive trace pattern formed on the substrate, wherein the conductive trace pattern has an opening to expose the substrate.

Abstract translation: 本发明提供电子器件及其制造方法相同的方法，以及用于制造该一个螺旋电感器装置和方法的。 该电子装置包括一个基片和形成在基片的导电迹线图案，所述worin导电迹线图案具有开口以暴露所述衬底。

公开(公告)号：EP2096874A1

公开(公告)日：2009-09-02

申请号：EP09002773.1

申请日：2009-02-26

Applicant: Richwave Technology Corp.

Inventor： Steinbach, Eckehard Goetz ,  Deng, Wei-Kung ,  Wong, Shyh-Chvi

IPC: H04N7/68 ,  H04N7/26

CPC classification number: H04N19/895 ,  H04N19/124 ,  H04N19/132 ,  H04N19/166 ,  H04N19/176

Abstract: Systems and methods for delivering real-time video imagery to a receiver (110) over a channel (108). A current video frame is captured and digitized. The digitized frame is divided into a plurality of macroblocks. For each macroblock an intra, inter or skip mode coding mode is determined. Based on instantaneous feedback received from a receiver regarding successfully received video packets for a prior video frame, a quantization parameter is set and the macroblocks are encoded in accordance with their respective selected coding mode. Synchronized error concealment is performed at both encoder (104) and decoder (112) sides of the system and retransmission of lost video packets, using an adaptive retransmission scheme, is performed in accordance with the instantaneous feedback from the receiver (110).

Abstract translation: 系统和用于在信道（108）提供实时视频图像至接收器（110）的方法。 当前视频帧被捕获并且数字化。 数字化帧被划分成宏块的复数。 对于帧内，帧间或跳过模式的编码模式中的每个宏块被确定开采。 基于从接收器关于用于前一视频帧成功接收视频分组接收瞬时反馈，量化参数被设置并与他们的选择respectivement编码模式的宏块在雅舞蹈编码。 同步错误隐藏在这两个编码器（104）和解码器（112）的系统的侧面和丢失的视频分组的重传进行的，使用自适应重传方案的，执行雅舞蹈与来自所述接收器（110）的瞬时反馈。

公开(公告)号：EP4550676A2

公开(公告)日：2025-05-07

申请号：EP24207672.7

申请日：2024-10-20

Applicant: RichWave Technology Corp.

Inventor： Chou, Chien-Chang ,  Chang, Jyun-Wei

IPC: H04B1/401 ,  H01Q3/24 ,  H01Q25/00

Abstract: A beam switching system (10) includes a selection circuit (12) and a branch line coupler (11). The selection circuit (12) includes an input port (SIP1) for receiving the input radio frequency signal (IRF1), and two output ports (SOP11, SOP12). The selection circuit (12) selects at least one of its two output ports (SOP11, SOP12) to output an output radio frequency signal (ORF1). The branch line coupler (11) includes two input ports (DIP11, DIP12) respectively coupled to two output ports (SOP11, SOP12) of the selection circuit (12) and used to receive the output radio frequency signal (ORF1), and two output ports (DOP11, DOP12) respectively used to couple two antennas (20, 25).