公开(公告)号：EP2651071A4

公开(公告)日：2017-11-15

申请号：EP11846113

申请日：2011-12-09

Applicant: TOA CORP

Inventor： EJIMA KEN'ICHI ,  OGURA TAKASHI ,  MORIGUCHI KOJI

IPC: H04R3/00 ,  H04L9/00 ,  H04L29/06 ,  H04R1/08 ,  H04W12/02

CPC classification number: H04R3/00 ,  H04L9/00 ,  H04L63/0428 ,  H04R1/08 ,  H04R2420/07 ,  H04W12/02

Abstract: Provided is a wireless microphone system (1) comprising a microphone (10) and a wireless receiver (30), wherein the wireless microphone system (1) is provided with: a normal communication mode in which communication is performed by using a normal unique word (UWN) preset in both the microphone and the wireless receiver devices; a confidential setting mode in which a confidential unique word (UWX) is transmitted without being set in either of said devices; and a confidential communication mode in which communication is performed by both said devices by using the confidential unique word (UWX) set by the confidential setting mode.

公开(公告)号：CA2662472C

公开(公告)日：2013-09-03

申请号：CA2662472

申请日：2007-09-10

Applicant: TOA CORP

Inventor： NAKASHIMA MITSURU ,  MORIGUCHI KOJI

IPC: H04B1/04 ,  H01Q9/16

Abstract: A wireless microphone device enables a circuit board, which is to be provided with an oscillation circuit, to be decreased in size without deteriorating radiation characteristics. The wireless microphone device includes: a circuit board that is sectioned into circuit areas and makes the respective circuit areas function as antenna elements of a dipole antenna; an oscillation circuit that is arranged in the circuit area and generates a high frequency signal on the basis of a voice signal from a microphone; a feeding path for feeding the high frequency signal to an electrically conductive layer in the circuit area through a feeding point positioned on the circuit area side distant from the oscillation circuit; and a high frequency shield covering at least a part of the feeding path. The high frequency shield is formed by covering the feeding path with a metal case having an opening at a bottom face and conducting the metal case to the electrically conducting layer in the circuit area.

公开(公告)号：CA2662472A1

公开(公告)日：2008-03-20

申请号：CA2662472

申请日：2007-09-10

Applicant: TOA CORP

Inventor： NAKASHIMA MITSURU ,  MORIGUCHI KOJI

IPC: H04B1/04 ,  H01Q9/16

Abstract: [PROBLEMS] To provide a wireless microphone device capable of reducing a circuit substrate where an oscillation circuit is provided without degrading the radiation characteristic. [MEANS FOR SOLVING PROBLEMS] A wireless micro phone device includes: a circuit substrate (5) divided into circuit regions (11a, 11b) so that each of the circuit regions functions as an antenna eleme nt of a dipole antenna; an oscillation circuit (21) arranged in the circuit region (11b) and generating a high-frequency signal according to an audio si gnal from a microphone (2a); a power supply channel for supplying the high-f requency signal to a conductive layer (11) in the circuit region (11b); and a high-frequency shield covering at least a part of the power supply channel . The high-frequency shield is formed by a metal case (12) having an opening at its bottom. The metal case (12) covers the power supply channel and conn ected to the conductive layer (11) in the circuit region (11b).

公开(公告)号：EP2112767A4

公开(公告)日：2010-02-03

申请号：EP07807014

申请日：2007-09-10

Applicant: TOA CORP

Inventor： NAKASHIMA MITSURU ,  MORIGUCHI KOJI

IPC: H04B1/04 ,  H01Q9/16

CPC classification number: H01Q1/50 ,  H01Q9/16

公开(公告)号：JP2012124847A

公开(公告)日：2012-06-28

申请号：JP2010276024

申请日：2010-12-10

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： EJIMA KENICHI ,  OGURA TAKASHI ,  MORIGUCHI KOJI

IPC: H04L9/08 ,  H04R1/06

CPC classification number: H04R3/00 ,  H04L9/00 ,  H04L63/0428 ,  H04R1/08 ,  H04R2420/07 ,  H04W12/02

Abstract: PROBLEM TO BE SOLVED: To provide a wireless microphone system that can suppress interception by a receiver of a third party with simple structure.SOLUTION: A system comprises: a microphone transmitting a transmission signal including a voice signal and additional information for processing the voice signal; and a wireless receiver receiving the transmission signal and processing the voice signal of the transmission signal based on the additional information. The system has: a normal communication mode in which communication is performed by using a normal unique word UWN being set in advance in the microphone and the wireless receiver; a secrecy setting mode in which a secrecy unique word UWX differing from the normal unique word UWN is set in the microphone and is transmitted from the microphone to the wireless receiver; and a secrecy communication mode in which the communication is performed by using the secrecy unique word UWX set in the microphone and the wireless receiver by the secrecy setting mode.

Abstract translation: 要解决的问题：提供一种无线麦克风系统，其能够以简单的结构抑制第三方的接收器的拦截。 解决方案：系统包括：麦克风，发送包括语音信号的传输信号和用于处理语音信号的附加信息; 以及无线接收器，其接收所述发送信号，并且基于所述附加信息来处理所述发送信号的语音信号。 该系统具有：正常通信模式，其中通过使用在麦克风和无线接收机中预先设置的普通唯一字UWN来进行通信; 保密设置模式，其中在麦克风中设置与正常唯一字UWN不同的秘密唯一字UWX，并从麦克风发送到无线接收器; 以及保密通信模式，其中通过使用通过保密设置模式在麦克风和无线接收机中设置的秘密唯一字UWX进行通信。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2008072371A

公开(公告)日：2008-03-27

申请号：JP2006248553

申请日：2006-09-13

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： NAKAJIMA MITSURU ,  MORIGUCHI KOJI

IPC: H04B1/04 ,  H01Q9/16

CPC classification number: H01Q1/50 ,  H01Q9/16

Abstract: PROBLEM TO BE SOLVED: To provide a wireless microphone device such that a circuit board provided with an oscillation circuit can be made compact without deteriorating radiation characteristics. SOLUTION: The wireless microphone device comprises the circuit board 5 which is sectioned into circuit regions 11a and 11b so that the circuit regions function as antenna elements of a dipole antenna, an oscillation circuit 21 which is disposed in the circuit region 11b to generate a high-frequency signal based upon an audio signal from a microphone 2a, a feed path which supplies the high-frequency signal to a conductive layer 11 in the circuit region 11b through a feed point disposed closer to the circuit region 11a than to the oscillation circuit 21, and a high-frequency shield which covers the feed path at least a portion of the feed path. The high-frequency shield is formed by covering the feed path with a metallic case 12 having an opening in the bottom surface and electrically connecting the metal case 12 to the conductive layer 11 in the circuit region 11b. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种无线麦克风装置，使得可以使设置有振荡电路的电路板紧凑，而不会降低辐射特性。 解决方案：无线麦克风装置包括电路板5，其被分成电路区域11a和11b，使得电路区域用作偶极天线的天线元件;振荡电路21，其布置在电路区域11b至 基于来自麦克风2a的音频信号产生高频信号，麦克风2a是通过设置在电路区域11a附近的馈电点将高频信号提供给电路区域11b中的导电层11的馈送路径， 振荡电路21以及覆盖馈送路径的馈送路径的至少一部分的高频屏蔽。 高频屏蔽是通过在底面具有开口的金属壳体12覆盖馈电路径而形成的，并且将金属壳体12与电路区域11b中的导体层11电连接。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006174326A

公开(公告)日：2006-06-29

申请号：JP2004367315

申请日：2004-12-20

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： NAKAJIMA MITSURU ,  MORIGUCHI KOJI

IPC: H04B1/26

Abstract: PROBLEM TO BE SOLVED: To provide an AM receiver wherein out-of-tuning does not occur even if a length of a coaxial cable for antenna connection is not fixed.
SOLUTION: A mixer 10 frequency-converts an output signal of a buffer amplifier 8 into a first intermediate frequency (IF) signal of a frequency higher than a frequency band of AM broadcast based on a first local oscillation signal. The frequency of the first local oscillation signal is selected so that a frequency of an unwanted signal derived in the first IF signal becomes out-of-frequency band of the AM broadcast. The first IF signal extracted from the output signal of the mixer 10 by a band-pass filter 12 is amplified by a first IF amplifier 14. A mixer 18 frequency-converts the amplified first IF signal into a second IF signal of a frequency lower than the first IF signal, out of the frequency band of AM broadcasting, based on a second local oscillation signal. The second IF signal is extracted from the output signal of a second frequency conversion means by a band-pass filter 22, and amplified by a second IF amplifier 24.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供即使天线连接的同轴电缆的长度不固定也不会发生失调的AM接收机。 解决方案：混频器10基于第一本地振荡信号，将缓冲放大器8的输出信号频率转换成高于AM广播频带的频率的第一中频（IF）信号。 选择第一本地振荡信号的频率，使得在第一IF信号中导出的不想要的信号的频率变成AM广播的频带外。 由带通滤波器12从混频器10的输出信号提取的第一IF信号由第一IF放大器14放大。混频器18将放大的第一IF信号频率转换成频率低于 基于第二本地振荡信号，在AM广播的频带之外的第一IF信号。 第二IF信号通过带通滤波器22从第二频率转换装置的输出信号提取，并被第二IF放大器24放大。（C）2006年，JPO和NCIPI

公开(公告)号：JP2008072373A

公开(公告)日：2008-03-27

申请号：JP2006248555

申请日：2006-09-13

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： NAKAJIMA MITSURU ,  MORIGUCHI KOJI

IPC: H01Q9/28 ,  H01Q1/24 ,  H01Q1/38 ,  H04R3/00

CPC classification number: H01Q9/28 ,  H01Q1/243 ,  H01Q1/38 ,  H04R2410/00 ,  H04R2420/07

Abstract: PROBLEM TO BE SOLVED: To provide a wireless microphone device for inhibiting currents from electromagnetically negating each other between circuit boards when making circuit boards multistage.
SOLUTION: The wireless microphone device comprises: a circuit board 65 divided into a first circuit area and a second circuit area to make the first circuit area and the second circuit area function as an antenna element of a dipole antenna; an oscillation circuit 71 arranged within the first circuit area to generate a high frequency signal on the basis of a sound signal from a microphone 63; a circuit board 68 arranged opposedly from the circuit board 65 and divided into a third circuit area and a fourth circuit area; and connectors 74 and 75 for electrically connecting the circuit board 65 and the circuit board 68 and making at least one of a third circuit area and the fourth circuit area function as an antenna element.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种无线麦克风装置，用于在使电路板多级时抑制电路板之间的电磁相互抵消的电流。 解决方案：无线麦克风装置包括：划分为第一电路区域和第二电路区域的电路板65，以使第一电路区域和第二电路区域用作偶极天线的天线元件; 布置在第一电路区域内的振荡电路71，用于根据来自麦克风63的声音信号产生高频信号; 电路板68，与电路板65相对设置，分为第三电路区域和第四电路区域; 以及用于电连接电路板65和电路板68并且使第三电路区域和第四电路区域中的至少一个用作天线元件的连接器74和75。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2012119939A

公开(公告)日：2012-06-21

申请号：JP2010267893

申请日：2010-11-30

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： EJIMA KENICHI ,  MORIGUCHI KOJI

IPC: H04B1/16 ,  H04R1/06 ,  H04W72/08

Abstract: PROBLEM TO BE SOLVED: To provide a wireless receiver and a wireless microphone system capable of setting a channel with less interference automatically.SOLUTION: The wireless receiver extracts an external use channel to be used by an external device, and an interference channel which may interfere with at least one of the external use channels being used by the wireless receiver. Then, the wireless receiver extracts all reception channels except the external use channels and interference channels within reception channels as settable channels.

Abstract translation: 要解决的问题：提供能够自动设置较少干扰的信道的无线接收机和无线麦克风系统。 解决方案：无线接收器提取外部设备使用的外部使用信道，以及可能干扰无线接收机使用的至少一个外部使用信道的干扰信道。 然后，无线接收机将除接收通道外的外部使用信道和干扰信道之外的所有接收信道提取为可设置的信道。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010010604A

公开(公告)日：2010-01-14

申请号：JP2008171130

申请日：2008-06-30

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： MORIMOTO YUKITOSHI ,  MORIGUCHI KOJI ,  TOKUDA MICHIHIKO

IPC: H01L31/02

Abstract: PROBLEM TO BE SOLVED: To provide a light receiver capable of suppressing noise due to electromagnetic wave while suppressing a shield member from interfering reception of an optical signal. SOLUTION: The light receiver 2 is formed by covering an approximately hemispherical light receiving element 21 with an electrostatic shielding coil 22. The electrostatic shielding coil 22 is a coil-shaped member formed of a metal winding wire, and is a shield member for electrostatically shielding the light receiving element 21 from the electromagnetic wave which generates the noise. The electrostatic shielding coil 22 has a coil shape, and thus has opening parts at both end parts, and one of the opening parts 23 faces to a cover side. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够抑制由屏蔽部件干扰光信号的接收而能够抑制由电磁波引起的噪声的光接收器。 解决方案：光接收器2通过用静电屏蔽线圈22覆盖近似半球形的光接收元件21而形成。静电屏蔽线圈22是由金属绕组线形成的线圈状构件，并且是屏蔽构件 用于将光接收元件21与产生噪声的电磁波静电屏蔽。 静电屏蔽线圈22具有线圈形状，因此在两端部具有开口部，并且一个开口部23面向盖侧。 版权所有（C）2010，JPO＆INPIT