Balance control system for multichannel audio apparatus
    1.
    发明授权
    Balance control system for multichannel audio apparatus 失效
    多通道音频设备平衡控制系统

    公开(公告)号:US3956709A

    公开(公告)日:1976-05-11

    申请号:US534302

    申请日:1974-12-19

    IPC分类号: H04S1/00 H04S7/00 H03F3/68

    CPC分类号: H04S7/302

    摘要: A balance control system for multichannel audio apparatus wherein stereophonic signals are transmitted through plural audio channels of the audio apparatus. The balance control system includes a balance control network connected to the audio channels for selectively adjusting the relative amplitudes of the respective stereophonic signals transmitted therethrough with respect to each other. The balance control system further includes at least one signal delay circuit included in at least one of the audio channels for establishing relative delays among the transmitted stereophonic signals. The delay circuit is controlled simultaneously with the control of the balance control network.

    摘要翻译: 一种用于多通道音频设备的平衡控制系统,其中立体声信号通过音频设备的多个音频通道传输。 平衡控制系统包括连接到音频通道的平衡控制网络,用于选择性地调节相对于彼此传输的各个立体声信号的相对振幅。 平衡控制系统还包括至少一个信号延迟电路,其包括在至少一个音频通道中,用于建立发送的立体声信号之间的相对延迟。 延时电路与平衡控制网络的控制同步控制。

    Remote control signal receiver and method, and remote control system
    2.
    发明授权
    Remote control signal receiver and method, and remote control system 失效
    遥控信号接收机及遥控系统

    公开(公告)号:US06400280B1

    公开(公告)日:2002-06-04

    申请号:US08985711

    申请日:1997-12-05

    申请人: Yoshio Osakabe

    发明人: Yoshio Osakabe

    IPC分类号: H04Q100

    摘要: A remote control signal for indicating reproduction of DVD 24 which is transmitted from a bi-directional remote commander, is deciphered by a digital TV 21 and then converted to the data format of an IEEE-1394 serial bus 26, and then transmitted to DVD 24. DVD 24 transmits the response to the received remote control signal to the digital TV 21, and also starts the reproduction operation. The reproduced signal is supplied to the digital TV 21 through the IEEE-1394 serial bus 26. The digital TV 21 transmits the signal corresponding to the response from DVD 24 to the bi-directional remote commander 27, and also displays the pictures corresponding to the reproduced signal and output the voices.

    摘要翻译: 用于指示从双向遥控器发送的DVD24的再现的遥控信号由数字TV21解密,然后转换成IEEE-1394串行总线26的数据格式,然后发送到DVD 24 DVD24将对所接收的遥控信号的响应发送到数字TV21,并且还开始再现操作。 再现信号通过IEEE-1394串行总线26提供给数字TV 21.数字电视21将与DVD24的响应相对应的信号发送到双向遥控器27,并且还显示对应于 再现信号并输出​​声音。

    Bi-directional communication system
    3.
    发明授权
    Bi-directional communication system 失效
    双向通信系统

    公开(公告)号:US5608730A

    公开(公告)日:1997-03-04

    申请号:US170077

    申请日:1993-12-17

    摘要: There is disclosed a communication system using a bi-directional bus, which includes a plurality of devices (e.g., TV image receiver or video tape recorder, etc.) connected to each other. Each device includes a transmit signal formation unit having a frame structure including an address field for specifying addresses of devices between which communication is carried out, a control field for specifying whether communication is carried out in the state where device on the receiving side is locked or in the state where that device is unlocked, and a data field for specifying data to be transmitted. For transmitting data having a data quantity greater than data capacity of the data field, the data is divided into a plurality of frames, an indication to lock device on the receiving side is given to control field of a frame transmitted first, and an indication to unlock that device is given to control field of a frame transmitted last. The transmit signal thus indicated is transmitted through the bi-directional bus by a bus output unit. In addition, there are also disclosed a transmitting method, a receiving method and a communication method, which can be applied to such a bi-directional bus system.

    摘要翻译: 公开了使用双向总线的通信系统,其包括彼此连接的多个设备(例如,电视图像接收机或录像机等)。 每个设备包括发送信号形成单元,其具有帧结构,该帧结构包括用于指定在其进行通信的设备的地址的地址字段,用于指定在接收侧的设备被锁定的状态下是否进行通信的控制字段, 在该设备被解锁的状态下,以及用于指定要发送的数据的数据字段。 为了发送数据量大于数据字段的数据量的数据,将数据划分成多个帧,将接收侧的锁定装置的指示给予首先发送的帧的控制字段, 解锁该设备被给予最后发送的帧的控制字段。 如此指示的发射信号通过总线输出单元通过双向总线传输。 此外,还公开了可以应用于这种双向总线系统的发送方法,接收方法和通信方法。

    Bi-directional bus system and transmitting, receiving, and communication
methods for same
    5.
    发明授权
    Bi-directional bus system and transmitting, receiving, and communication methods for same 失效
    双向总线系统和发送,接收和通信方法相同

    公开(公告)号:US5448562A

    公开(公告)日:1995-09-05

    申请号:US169452

    申请日:1993-12-17

    摘要: There is a communication system using a bi-directional bus, which includes a plurality of devices (e.g., TV image receiver or video tape recorder, etc.) connected to each other. Each device comprises a transmit signal formation unit adapted to form a transmit signal having a frame structure consisting of an address field for specifying addresses of devices between which communication is carried out, a control field for specifying a data communication command indicating communication of data or a control command communication command indicating communication of control command, whereby, in transmitting data, the device specifies the content of the control field of the leading frame as the data communication command to form the transmit signal; a bus output unit for outputting the transmit signal formed by the transmit signal formation unit to the bi-directional bus; a bus input unit adapted to receive the bi-directional bus; and a control unit for detecting on the basis of the content of the control field of the leading frame of the transmit signal received by the bus input unit whether current communication is communication of data or communication of control command, whereby when communication of data is detected, the control unit recognizes that the content of the data field of this frame is specified as data to carry out a control to receive data.

    摘要翻译: 存在使用双向总线的通信系统,其包括彼此连接的多个设备(例如,电视图像接收机或录像机等)。 每个设备包括发送信号形成单元,适于形成具有由用于指定进行通信的设备的地址的地址字段的帧结构的发送信号,指定指示数据通信的数据通信命令的控制字段 指示控制命令的通信的控制命令通信命令,由此,在发送数据时,设备将前导帧的控制字段的内容指定为数据通信命令以形成发送信号; 总线输出单元,用于将由发送信号形成单元形成的发送信号输出到双向总线; 适于接收所述双向总线的总线输入单元; 以及控制单元,用于基于总线输入单元接收的发送信号的前导帧的控制字段的内容来检测当前通信是否是数据的通信或控制命令的通信,由此当检测到数据的通信时 ,则控制单元识别出该帧的数据字段的内容被指定为数据以执行接收数据的控制。

    Transmitting method, receiving method, and communication method for
bi-directional bus system, and bi-directional bus system
    6.
    发明授权
    Transmitting method, receiving method, and communication method for bi-directional bus system, and bi-directional bus system 失效
    双向总线系统的发送方法,接收方法和通信方法以及双向总线系统

    公开(公告)号:US5402419A

    公开(公告)日:1995-03-28

    申请号:US169451

    申请日:1993-12-17

    摘要: A communication system using a bi-directional bus, comprises a plurality of devices (e.g., TV Image Receiver, Video Tape Recorder, etc. ) respectively including sub-devices (e.g., Monitor Image Receiver, TV tuner, Video Deck, etc.) adapted for executing the operation for a received control command. Each device comprises a transmit signal formation unit for forming a transmit signal having a frame structure consisting of an address field for specifying addresses of devices between which communication is carried out, and a data field for specifying a control command for a device or a sub-device, and including a channel select code of a fixed length, inserted at a predetermined position of the data field, indicating communication from a sub-device included in a device to any other device, communication from a device to a sub-device included in any other device, or communication from a device to a device; and a bus output unit for outputting, to the bi-directional bus, the transmit signal formed by the transmit signal formation unit.

    摘要翻译: 使用双向总线的通信系统包括分别包括子设备(例如,监视图像接收器,TV调谐器,视频甲板等)的多个设备(例如,TV Image Receiver,录像带录像机等) 适于执行所接收的控制命令的操作。 每个设备包括发送信号形成单元,用于形成发送信号,该发送信号具有帧结构,该帧结构包括用于指定进行通信的设备的地址的地址字段和用于指定用于设备或子载波的控制命令的数据字段, 设备,并且包括固定长度的通道选择代码,其插入在数据字段的预定位置,指示从设备中包括的子设备到任何其他设备的通信,从设备到包括在设备中的子设备的通信 任何其他设备,或从设备到设备的通信; 以及总线输出单元,用于向双向总线输出由发送信号形成单元形成的发送信号。

    Information processing apparatus, information processing method, information processing system and recording medium
    7.
    发明授权
    Information processing apparatus, information processing method, information processing system and recording medium 有权
    信息处理装置,信息处理方法,信息处理系统和记录介质

    公开(公告)号:US07065214B2

    公开(公告)日:2006-06-20

    申请号:US10195022

    申请日:2002-07-12

    IPC分类号: H04L9/00

    摘要: An information processing apparatus and an information processing method capable of preventing information from being copied illegally. where a hash function and a service key are stored in advance in an EEPROM of a DVD player serving as a source. In an BEPROM of a personal computer (PC) serving as a sink, on the other hand, its ID and a license key are stored beforehand. The DVD player requests the PC to transmit the ID. The DVD player then applies the hash function to data resulting from concatenation of the lID with the service key to generate a license key (=hash (ID ∥service_key)). Subsequently, the DVD player generates a source side common session key and encrypts the session key by using the generated license key. Then, the DVD player transmits the encrypted source side common session key to the PC. The PC decrypts the encrypted source side common session key by using the license key stored in its EEPROM to produce a sink side common session key which has a value equal to that of the source side common session key.

    摘要翻译: 一种能够防止信息被非法复制的信息处理装置和信息处理方法。 其中散列函数和服务密钥预先存储在用作源的DVD播放器的EEPROM中。 另一方面,在用作接收器的个人计算机(PC)的BEPROM中,其ID和许可证密钥被预先存储。 DVD播放器请求PC传送ID。 然后,DVD播放器将散列函数应用于由ID连接到服务密钥产生的数据,以生成许可密钥(= hash(ID∥service_key))。 随后,DVD播放器生成源侧公共对话密钥,并通过使用所生成的许可证密钥来加密会话密钥。 然后,DVD播放器将加密的源侧公共会话密钥发送到PC。 PC通过使用存储在其EEPROM中的许可证密钥来解密加密的源侧公共会话密钥,以产生具有等于源侧公共会话密钥的值的宿侧公共会话密钥。

    Data transmission apparatus and method, data receiving apparatus and method, and data transmitting/receiving system and method
    8.
    发明授权
    Data transmission apparatus and method, data receiving apparatus and method, and data transmitting/receiving system and method 失效
    数据传输装置和方法,数据接收装置和方法以及数据发送/接收系统和方法

    公开(公告)号:US06539094B1

    公开(公告)日:2003-03-25

    申请号:US09059762

    申请日:1998-04-14

    IPC分类号: H04L900

    摘要: Data to be transmitted via a serial bus in conformity with the IEEE 1394 protocol are ciphered by a ciphering/deciphering circuit, and headers are attached thereto by a header sync detecting/generating circuit. And after further attachment of CRC code by a CRC detector/generator, the data are packetized into isochronous packets of an isochronous mode by a transmission/reception switching circuit, whereby transmission of the data can be performed with enhanced security. Out of cipher keys employed, a session key invariable in each session of the data is transmitted in each packet of an asynchronous mode, and a time variable updated in each session is transmitted in each packet of an isochronous mode. And the ciphered data obtained by depacketizing the packets of the isochronous mode are deciphered, so that the data transmitted with security can be deciphered exactly, and thus illegal use of the data can be prevented with certainty.

    摘要翻译: 通过符合IEEE 1394协议的串行总线发送的数据由加密/解密电路加密,并通过报头同步检测/生成电路附加标题。 并且在通过CRC检测器/发生器进一步附加CRC码之后,通过发送/接收切换电路将数据分组成同步模式的等时分组,从而可以以更高的安全性进行数据的传输。 在采用的密码密钥之外,在每个异步模式的数据包中发送数据的每个会话中不变的会话密钥,并且在每个会话中更新的时间变量在等时模式的每个分组中被发送。 并且通过对同步模式的分组进行解包获得的加密数据被解密,从而可以准确地解密传输的数据,从而可以确定地防止数据的非法使用。

    Apparatus for scanning an addressable memory
    10.
    发明授权
    Apparatus for scanning an addressable memory 失效
    用于扫描可寻址存储器的装置

    公开(公告)号:US4280199A

    公开(公告)日:1981-07-21

    申请号:US63383

    申请日:1979-08-03

    CPC分类号: G11C8/04 H03J5/0281

    摘要: Apparatus for scanning an addressable memory includes a clock pulse generator and an address counter for counting the clock pulses so as to produce an address for the addressable memory and thereby designate a corresponding storage location from which stored data is read. The clock pulse generator is selectively enabled to supply clock pulses to the address counter. A scan advance circuit is selectively operable to change the count of the address counter by a predetermined amount in response to each operation thereof, and thereby change the designated storage location in the addressable memory. Successive operations of the scan advance circuit result in a step-wise change in the address.

    摘要翻译: 用于扫描可寻址存储器的装置包括时钟脉冲发生器和用于对时钟脉冲进行计数的地址计数器,以产生可寻址存储器的地址,从而指定从其读取存储数据的相应存储位置。 时钟脉冲发生器被选择性地使能以向地址计数器提供时钟脉冲。 扫描提前电路有选择地可操作地响应于其每次操作而将地址计数器的计数改变预定量,从而改变可寻址存储器中的指定存储位置。 扫描提前电路的连续操作导致地址的逐步改变。