公开(公告)号：US10595110B2

公开(公告)日：2020-03-17

申请号：US16205978

申请日：2018-11-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hisayuki Sasaki ,  Haruyuki Yoshida ,  Kenta Kondou

IPC: H04R1/08 ,  H04R3/00 ,  H04W52/24 ,  H04M19/00

Abstract: There is provided a microphone device for transmitting a collected audio signal to a receiving device wirelessly. The microphone device includes a battery, a current suppresser that is connected in series with the battery and suppresses a current from the battery and a plurality of transformers each of which is connected in series between the current suppresser and each of a plurality of loads and outputs a voltage in response to a corresponding load of the plurality of loads connected thereto based on an output of the current suppresser.

公开(公告)号：US10382873B2

公开(公告)日：2019-08-13

申请号：US16204516

申请日：2018-11-29

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Katsuya Abe ,  Katsumi Nakagawa ,  Hisayuki Sasaki ,  Ryosuke Kitago

IPC: H04R29/00 ,  H04R1/40 ,  H04R3/00

Abstract: In a wireless microphone system, a master device includes a master device control unit that generates a communication table in which a pair of a carrier wave and a slot which are used for communication with m microphone slave devices are set for one frame period, based on a total number of six carrier waves in a DECT system and n slots constituting one frame period of the DECT system, and k wireless processing units that perform communication using the DECT system with corresponding individual microphone slave devices among m microphone slave devices, based on the generated communication table. The k wireless processing units respectively operate synchronously based on the same clock signal.

公开(公告)号：US10791387B2

公开(公告)日：2020-09-29

申请号：US16247929

申请日：2019-01-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi Miyahara ,  Katsumi Nakagawa ,  Ryosuke Kitago ,  Hisayuki Sasaki

IPC: H04W4/80 ,  H04W56/00 ,  H04R1/04 ,  H04R1/08 ,  H04J3/06

Abstract: One of the plurality of first slave receiving apparatuses which serves as a reference first slave receiving apparatus repeatedly transmits a wireless control signal for controlling synchronization between a first receiving apparatus segment and a second receiving apparatus segment. One of the plurality of second slave receiving apparatuses which serves as a reference second slave receiving apparatus transmits a reference timing signal for performing synchronization in the second receiving apparatus segment including the reference second slave receiving apparatus to the second master receiving apparatus in synchronization with the wireless control signal. The second master receiving apparatus transmits a synchronization timing signal for performing synchronization in the second receiving apparatus segment including the second master receiving apparatus to another one of the plurality of second slave receiving apparatuses in the second receiving apparatus segment including the second master receiving apparatus, in response to the reference timing signal.