公开(公告)号：US5243661A

公开(公告)日：1993-09-07

申请号：US680408

申请日：1991-04-04

申请人： Masashi Ohkubo ,  Tooru Sasaki ,  Yasushi Katsumata ,  Akira Kimura

发明人： Masashi Ohkubo ,  Tooru Sasaki ,  Yasushi Katsumata ,  Akira Kimura

IPC分类号： G10K11/178 ,  H04R3/00

CPC分类号： H04R3/005 ,  G10K11/1784 ,  G10K11/1788 ,  G10K2210/1051 ,  G10K2210/108 ,  G10K2210/129 ,  G10K2210/3033 ,  G10K2210/3045

摘要： A microphone apparatus having a microphone for producing a desired audio signal, includes an adaptive signal processing section which is supplied with a reference signal based on a vibration detected signal from a vibration detecting circuit in response to a vibration of a vibration generating source whose vibration is picked up by the microphone and becomes an unnecessary noise signal, or in response to a control signal for controlling a drive source of a driving unit of a recording apparatus for recording an output signal from the microphone and which reduces a noise signal contained in the audio signal.

公开(公告)号：US4438409A

公开(公告)日：1984-03-20

申请号：US350334

申请日：1982-02-19

申请人： Yasushi Katsumata

发明人： Yasushi Katsumata

IPC分类号： H01C10/50 ,  H03G5/02 ,  H03G5/04 ,  H04B3/14 ,  H03F1/34

CPC分类号： H04B3/145 ,  H03G5/04

摘要： In an active equalizer for selectively boosting or attenuating predetermined frequencies of audio or other electrical signals, and which comprises an inverting amplifier having an inverting input which receives the input signal through an input resistance and an output connected with the inverting input through a feedback resistance and at which the equalized output is derived, and an active filter for determining the frequencies to be boosted or attenuated; there is further provided a change-over switch having a boosting position in which the input signal is applied to the active filter, an attenuating position in which the output of the inverting filter is applied to the active filter and a neutral position, and a potentiometer connected between the output of the active filter and the inverting input of the inverting amplifier and being operable in concert with the change-over switch for determining the extent to which the frequencies determined by the active filter are boosted or attenuated.

摘要翻译： 在有源均衡器中，用于选择性地增强或衰减音频或其他电信号的预定频率，并且其包括具有反相输入的反相放大器，反相输入端通过输入电阻接收输入信号，通过反馈电阻与反相输入端相连， 其中导出均衡输出;以及有源滤波器，用于确定要提升或衰减的频率; 还提供一种转换开关，其具有将输入信号施加到有源滤波器的升压位置，将反相滤波器的输出施加到有源滤波器和中性位置的衰减位置，以及电位计 连接在有源滤波器的输出端和反相放大器的反相输入端之间，并可与切换开关一起操作，用于确定由有源滤波器确定的频率被升压或衰减的程度。

公开(公告)号：US07243241B1

公开(公告)日：2007-07-10

申请号：US09462615

申请日：1999-05-10

申请人： Yasushi Katsumata ,  Masayuki Ohbayashi ,  Takashi Nakatsuyama ,  Han Min-Jae

发明人： Yasushi Katsumata ,  Masayuki Ohbayashi ,  Takashi Nakatsuyama ,  Han Min-Jae

IPC分类号： H04L9/32

CPC分类号： G06F21/10 ,  G06F2211/007 ,  G06F2221/0797 ,  G06F2221/2135

摘要： A contents database in which data of contents enciphered by a C key is stored and provided for a contents server, wherein the contents data enciphered by the C key are enciphered by an M key and sent to a user machine. In the user machine, the contents data enciphered by the C key are stored in a storage device. Upon reproduction, the contents data enciphered by the C key from the storage device are sent to an enciphering/decoding processing unit and decoded and charging is performed in accordance with the C key. A dynamic authenticating code which dynamically changes with the elapse of time is added to the C key.

摘要翻译： 存储由C密钥加密的内容的数据存储并提供给内容服务器的内容数据库，其中由C密钥加密的内容数据由M密钥加密并发送给用户机器。 在用户机中，由C键加密的内容数据存储在存储装置中。 在再现时，将来自存储装置的C密钥加密的内容数据发送到加密/解码处理单元，并根据C密钥进行解码和计费。 随着时间的推移动态变化的动态认证码被添加到C键。