Patents Assigned to Leltek Inc.
  • Patent number: 11777552
    Abstract: A method for transceiving signals and a transceiver using the same are provided. The method includes: configuring a transmitting circuit to transmit a transmitting signal via a first transmitting channel of the transmitting circuit during a transmitting period of the transmitting signal; configuring a switch module to connect the first transmitting channel to a first transducer element of a probe during the transmitting period; and configuring the switch module to disconnect the first transmitting channel form the first transducer element and to connect the first transmitting channel to a second transducer element of the probe during the transmitting period.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 3, 2023
    Assignee: Leltek Inc.
    Inventors: Biyun Yeh, Sheng-Chang Peng, Kuo-Ping Liu
  • Patent number: 11090030
    Abstract: An ultrasound apparatus and a method of emitting plane wave are provided. The ultrasound apparatus includes an ultrasound probe, a transceiver circuit, a switch module and a processor. The ultrasound probe has a 1st to a Mth transducer elements for respectively emitting ultrasound beams to form the plane wave, and the transceiver circuit has a 1st to a Nth transceiving channels. M, N are positive integers, and M is a multiple of N. During a scanning period, the processor controls the switch module to initially and respectively connect the 1st-Nth transceiving channels to the 1st-Nth transducer elements, such that the 1st-Nth transducer elements successively emit the ultrasound beams. After the ultrasound beam is emitted by the Nth transducer element, the processor controls the switch module to respectively connect the 1st-Nth transceiving channels to the (N+1)th-(2N)th transducer elements, such that the (N+1)th-(2N)th transducer elements successively emit the ultrasound beams.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: August 17, 2021
    Assignee: Leltek Inc.
    Inventors: Ying-Yi Liu, Sheng-Chang Peng, Kuo-Ping Liu
  • Publication number: 20210044317
    Abstract: A method for transceiving signals and a transceiver using the same are provided. The method includes: configuring a transmitting circuit to transmit a transmitting signal via a first transmitting channel of the transmitting circuit during a transmitting period of the transmitting signal; configuring a switch module to connect the first transmitting channel to a first transducer element of a probe during the transmitting period; and configuring the switch module to disconnect the first transmitting channel form the first transducer element and to connect the first transmitting channel to a second transducer element of the probe during the transmitting period.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Applicant: Leltek Inc.
    Inventors: Biyun Yeh, Sheng-Chang Peng, Kuo-Ping Liu
  • Publication number: 20180338746
    Abstract: The disclosure is directed to a power management method and an ultrasound apparatus using the same. The ultrasound apparatus includes an ultrasound probe, an TRX circuit, a position sensor, and a processor. In the disclosure, power is supplied to the ultrasound apparatus, and an ultrasound scanning is performed. During the ultrasound scanning, position information of the ultrasound probe is being continuously detected by the position sensor. Whether the ultrasound probe is in a static state during the ultrasound scanning is determined. When determined that the ultrasound probe is in the static state during the ultrasound scanning, a power saving mode is entered, such that the ultrasound scanning is stopped. Within the power saving mode, the position information is continuously detected. Whether the ultrasound probe is still in the static state under the power saving mode is determined.
    Type: Application
    Filed: May 24, 2017
    Publication date: November 29, 2018
    Applicant: Leltek Inc.
    Inventors: Chien-Hsin Wu, Ying-Yi Liu, Sheng-Chang Peng, Kuo-Ping Liu
  • Publication number: 20180125454
    Abstract: An ultrasound apparatus and a method of emitting plane wave are provided. The ultrasound apparatus includes an ultrasound probe, a transceiver circuit, a switch module and a processor. The ultrasound probe has a 1st to a Mth transducer elements for respectively emitting ultrasound beams to form the plane wave, and the transceiver circuit has a 1st to a Nth transceiving channels. M, N are positive integers, and M is a multiple of N. During a scanning period, the processor controls the switch module to initially and respectively connect the 1st-Nth transceiving channels to the 1st-Nth transducer elements, such that the 1st-Nth transducer elements successively emit the ultrasound beams. After the ultrasound beam is emitted by the Nth transducer element, the processor controls the switch module to respectively connect the 1st-Nth transceiving channels to the (N+1)th-(2N)th transducer elements, such that the (N+1)th-(2N)th transducer elements successively emit the ultrasound beams.
    Type: Application
    Filed: November 10, 2016
    Publication date: May 10, 2018
    Applicant: Leltek Inc.
    Inventors: Ying-Yi Liu, Sheng-Chang Peng, Kuo-Ping Liu