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    RADIO FREQUENCY SWITCH CIRCUIT
    21.
    发明公开
    RADIO FREQUENCY SWITCH CIRCUIT 审中-公开

    公开(公告)号：EP4429111A1

    公开(公告)日：2024-09-11

    申请号：EP24161675.4

    申请日：2024-03-06

    Applicant: RichWave Technology Corp.

    Inventor： PAI, Ching-Yao

    IPC: H03K17/10 ,  H03K17/693 ,  H03K17/081

    CPC classification number: H03K17/102 ,  H03K17/08104 ,  H03K17/693

    Abstract: A radio frequency switch circuit (100) includes a series circuit (110_1 to 110_4, 210, 310, 410). The series circuit (110_1 to 110_4, 210, 310, 410) includes a first series connection group (211, 311, 411) and a second series connection group (212, 312, 412). The first series connection group (211, 311, 411) includes first transistors (T1_1 to T4_1). The second series connection group (212, 312, 412) includes second transistors (T1_2 to T4_2). When an electrostatic discharge event occurs, a voltage at control terminals of the first transistors (T1_1 to T4_1) are different from a voltage at control terminals of the second transistors (T1_2 to T4_2). In a normal operation state, switch states of the first series connection group (211, 311, 411) and the second series connection group (212, 312, 412) are the same as each other.

    SWITCH DEVICE
    22.
    发明公开
    SWITCH DEVICE 审中-公开

    公开(公告)号：EP4164128A1

    公开(公告)日：2023-04-12

    申请号：EP22199924.6

    申请日：2022-10-06

    Applicant: RichWave Technology Corp.

    Inventor： Chen, Chih-Sheng ,  Lin, Chih-Che ,  Huang, Yu-Siang ,  Yen, Hsuan-Der

    IPC: H03K17/0814 ,  H03F1/56 ,  H03H11/28 ,  H04B1/04

    Abstract: A switch device includes a switch unit (SU1), an adjustment switch (SWA), an impedance element (R1), a node (N2) and a detection unit (DU). A first terminal and a second terminal of the adjustment switch (SWA) are respectively coupled to a second terminal of the switch unit (SU1) and a reference voltage terminal (150). A first terminal and a second terminal of the impedance element (R1) are respectively coupled to the first terminal and the second terminal of the adjustment switch (SWA). The detection unit (DU) is coupled to the node (N2), and a control terminal of the switch unit (SU1) and a control terminal of the adjustment switch (SWA). The detection unit (DU) detects a node signal (SN) at the node (N2) to accordingly control the switch unit (SU1) and the adjustment switch (SWA).

    VOLTAGE CONTROL CIRCUIT FOR REDUCING SIGNAL INTERFERENCE
    23.
    发明公开
    VOLTAGE CONTROL CIRCUIT FOR REDUCING SIGNAL INTERFERENCE 审中-公开

    公开(公告)号：EP3965292A1

    公开(公告)日：2022-03-09

    申请号：EP21187346.8

    申请日：2021-07-23

    Applicant: RichWave Technology Corp.

    Inventor： Yeh, Chia-Jung ,  Peng, Tien-Yun ,  Chen, Chih-Sheng

    IPC: H03F1/02 ,  H03F3/195 ,  H03F3/24 ,  G05F1/46 ,  H02M1/00 ,  H02M3/02

    Abstract: A voltage controlled circuit includes a tracking circuit (10), an operational amplifier (12), a transistor, a feedback circuit (17) and a sample and hold circuit (14). The tracking circuit (10) generates an updated enabling voltage (V'set) according to an enabling voltage (Vset), a sample enabling voltage (Vset max) and a sample reference voltage (Vclamp). The operational amplifier (12) output a control voltage according to an input voltage (V1) and a feedback voltage (V2). The transistor includes a control terminal receiving the control voltage, a first terminal receiving a reference voltage (VBAT), and a second terminal outputting a regulated voltage (Vreg). The feedback circuit (17) generates the feedback voltage (V2) according to the regulated voltage (Vreg). The sample and hold circuit (14) samples the input voltage (V1) to generate the sample enabling voltage (Vset_max), and samples the feedback voltage (V2) to generate the sample reference voltage (Vclamp).

    RADAR APPARATUS AND LEAKAGE CORRECTION METHOD
    26.
    发明公开
    RADAR APPARATUS AND LEAKAGE CORRECTION METHOD 审中-公开

    公开(公告)号：EP3647808A1

    公开(公告)日：2020-05-06

    申请号：EP19205609.1

    申请日：2019-10-28

    Applicant: RichWave Technology Corp.

    Inventor： YEH, Chiang-Hua ,  CHI, Hsiang-Feng

    IPC: G01S7/35 ,  G01S13/32 ,  G01S7/40

    Abstract: A radar apparatus (1, 1', 1") and a leakage correction method thereof are provided. The radar apparatus (1, 1', 1") includes a transmitter (100, 100') and a receiver (200, 200', 200'-1, 200", 200"-1). The receiver (200, 200', 200'-1, 200", 200"-1) receives transmitting signals (TS) including a sinewave signal (SS1) from the transmitter (100, 100'). The sinewave signal generator (210, 210') of the receiver (200, 200', 200'-1, 200", 200"-1) generates another sinewave signal (SS2) according to the amplitude of the transmitting signals (TS) or received transmitting signals (RTS). The correcting circuit (250) corrects leakage situation (LS) on the received transmitting signals (RTS) according to another sinewave signal (SS2). The phasor of sinewave form corresponding to the leakage situation (LS) relates to the phasor of another sinewave signal (SS2). Accordingly, the performance of receiver (200, 200', 200'-1, 200", 200"-1) may be improved effectively.

    VOLTAGE GENERATOR WHICH CAN SUPPORT ASSOCIATED CIRCUITRY
    27.
    发明公开
    VOLTAGE GENERATOR WHICH CAN SUPPORT ASSOCIATED CIRCUITRY 审中-公开
    SPANNUNGSGENERATOR，DER EINE VERBUNDENE SCHALTUNGSBAUGRUPPEUNTERSTÜTZENKANN

    公开(公告)号：EP3032730A1

    公开(公告)日：2016-06-15

    申请号：EP15198594.2

    申请日：2015-12-09

    Applicant: RichWave Technology Corp.

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

    IPC: H02M3/07 ,  H02M1/00

    CPC classification number: H02M3/24 ,  H02M1/36 ,  H02M3/07 ,  H02M7/103 ,  H02M2003/075

    Abstract: A voltage generator (100) includes an oscillator (130), a charge pump (140) having an input and an output, the input of the charge pump (140) being coupled to the output of the oscillator (130), a first resistor (R1) connected to the output of the charge pump (140), a second resistor (R2) connected to the first resistor (R1), a smoothing capacitor (C1) connected to the second resistor (R2), and a shorting element (150) connected in parallel with the second resistor (R2). When the shorting element is turned on, the second resistor (R2) is bypassed. By including an adjustable regulated voltage regulator (160), an adjustable bias current generator (160) and a size-adjustable inverter module (170), the voltage generator (100) is able to manipulate the speed of voltage generation.

    Abstract translation: 电压发生器（100）包括振荡器（130），具有输入和输出的电荷泵（140），电荷泵（140）的输入耦合到振荡器（130）的输出端，第一电阻器 （R1）连接到电荷泵（140）的输出端，连接到第一电阻器（R1）的第二电阻器（R2），连接到第二电阻器（R2）的平滑电容器（C1）和短路元件 150）与第二电阻器（R2）并联连接。 当短路元件接通时，旁路第二电阻器（R2）。 通过包括可调节调节电压调节器（160），可调偏置电流发生器（160）和尺寸可调的逆变器模块（170），电压发生器（100）能够操纵电压产生的速度。

    Method for providing error-resilient digital video content
    29.
    发明公开
    Method for providing error-resilient digital video content 审中-公开
    用于提供错误恢复数字视频内容的方法

    公开(公告)号：EP2582141A2

    公开(公告)日：2013-04-17

    申请号：EP12188339.1

    申请日：2012-10-12

    Applicant: RichWave Technology Corp.

    Inventor： Steinbach, Eckehard Goetz ,  Zhang, Fan ,  Peng, Yang ,  Deng, Wei-Kung

    IPC: H04N7/68 ,  H04N7/26

    CPC classification number: H04N19/423 ,  H04N19/107 ,  H04N19/124 ,  H04N19/132 ,  H04N19/149 ,  H04N19/15 ,  H04N19/152 ,  H04N19/166 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61 ,  H04N19/65 ,  H04N19/895

    Abstract: A method for providing error-resilient video content may include receiving video data reflective of multiple video frames; encoding the video data to generate a plurality of packets representing a video frame; transmitting the first group of packets to at least two receivers (110); receiving feedback information regarding receiving status of respective ones of the plurality of packets; examining error indications regarding the at least two receivers (110) based on the feedback information and implementing a first error-correction policy if a variation in the error indications among the at least two receivers (110) is below a first error threshold and a second error-correction policy if the variation is above the first error threshold. At least one of the first and second error-correction policies includes transmitting or retransmitting at least one packet using a coding scheme different from a scheme in encoding the plurality of packets already.

    Abstract translation: 用于提供错误恢复视频内容的方法可以包括：接收反映多个视频帧的视频数据; 编码视频数据以生成表示视频帧的多个分组; 将第一组分组传送到至少两个接收器（110）; 接收关于所述多个分组中的相应分组的接收状态的反馈信息; 基于所述反馈信息检查关于所述至少两个接收器（110）的错误指示，并且如果所述至少两个接收器（110）之间的所述错误指示的变化低于第一错误阈值，则执行第一错误校正策略， 纠错策略，如果变化高于第一个错误阈值。 第一纠错策略和第二纠错策略中的至少一个包括使用与已编码多个分组中的方案不同的编码方案来传送或重传至少一个分组。

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