Circuit for automatically recognizing and receiving mono and stereo
audio signals
    1.
    发明授权
    Circuit for automatically recognizing and receiving mono and stereo audio signals 失效
    用于自动识别和接收单声道和立体声音频信号的电路

    公开(公告)号:US5655025A

    公开(公告)日:1997-08-05

    申请号:US441296

    申请日:1995-05-15

    IPC分类号: H04R5/04 H04S1/00 H04H5/00

    CPC分类号: H04R5/04

    摘要: In a mono/stereo input circuit for use in an audio equipment, and more particularly in a circuit for automatically recognizing and receiving mono/stereo audio signals, although a mono connector is inserted into a stereo jack, such an insertion of the mono connector is automatically recognized and then a stereo circuit can operate as a form of a mono circuit. The circuit for automatically recognizing and receiving the mono/stereo audio signals utilizes a fact that one connection terminal of the jack is grounded or not according to a type of the connector such as a mono connector and a stereo connector which is inserted into the jack. Accordingly, a resistor used as a voltage generator generates a generation voltage according to such a connector recognition. Also, using a difference between the generated voltage, the analog switches are turned on or off, to obtain a mono or a stereo audio signal processing circuit according to a type of the inserted connector. Accordingly, the present invention has an effect that a type of the inserted connector can be automatically recognized, and an external source or a microphone input circuit can operate without having any inconveniences to change a selector switch each time when a user exchanges a stereo input signal with a mono input signal.

    摘要翻译: 在用于音频设备的单声道/立体声输入电路中,更具体地,在用于自动识别和接收单声道/立体声音频信号的电路中,尽管将单声道连接器插入到立体声插孔中,但单声道连接器的插入 自动识别,然后立体声电路可以作为单声道电路的形式工作。 用于自动识别和接收单声道/立体声音频信号的电路利用这样的事实,即根据插入插孔的单连接器和立体声连接器的连接器的类型,插座的一个连接端子接地。 因此,用作电压发生器的电阻器根据这种连接器识别产生发电电压。 此外,使用所产生的电压之间的差异,模拟开关被接通或关断,以根据插入的连接器的类型获得单声道或立体声音频信号处理电路。 因此,本发明的效果在于,每当用户交换立体声输入信号时,可以自动识别所插入的连接器的类型,并且外部源或麦克风输入电路可以操作,而不会改变选择器开关的任何不便 具有单声道输入信号。

    Computer hibernation system for transmitting data and command words
between host and controller
    2.
    发明授权
    Computer hibernation system for transmitting data and command words between host and controller 失效
    用于在主机和控制器之间传输数据和命令字的计算机休眠系统

    公开(公告)号:US5805910A

    公开(公告)日:1998-09-08

    申请号:US621948

    申请日:1996-03-25

    IPC分类号: G06F3/00 G06F1/32 G06F1/26

    CPC分类号: G06F1/3215 Y10T307/625

    摘要: A computer system includes: a host unit, a power management system, a data backup power supply, a switching mode power supply, an auxiliary storage unit and a memory. The power management system generates a hibernation signal when an event is not generated from peripheral devices for a predetermined time period, a battery driving signal is output from the data backup power supply due to a power-off operation, or a command word is generated in accordance with performing a scheduled program. The host unit backs up the current operational environment and data in the auxiliary memory storage unit according to the hibernation signal, and outputs a powerdown command word so that the power management system interrupts the system power supply by outputting a main power cut-off signal or outputting a battery power cut-off signal according to the powerdown command word. The power management system resumes the power supply by outputting a power supply signal when a WAKE-UP signal in generated while the power is interrupted. When power is resumed, the host unit retrieves the backed up data and the work environment, identifies the source outputting the WAKE-UP signal, and then performs the corresponding operation.

    摘要翻译: 计算机系统包括:主机单元,电源管理系统,数据备份电源,切换模式电源,辅助存储单元和存储器。 当在预定时间段内不从外围设备产生事件时,电源管理系统产生休眠信号,由于断电操作而从数据备用电源输出电池驱动信号,或者在 按照执行预定的程序。 主机单元根据休眠信号备份当前的操作环境和辅助存储器存储单元中的数据,并输出掉电命令字,使得电源管理系统通过输出主电源切断信号或中断系统电源 根据powerdown命令字输出电池电源切断信号。 当电源中断时产生的WAKE-UP信号产生的电源管理系统通过输出电源信号来恢复供电。 当电源恢复时,主机检索备份数据和工作环境,识别输出WAKE-UP信号的源,然后进行相应的操作。

    Apparatus and method of displaying power line communication channel information
    3.
    发明申请
    Apparatus and method of displaying power line communication channel information 有权
    显示电力线通信信道信息的装置和方法

    公开(公告)号:US20070159981A1

    公开(公告)日:2007-07-12

    申请号:US11583854

    申请日:2006-10-20

    IPC分类号: H04J1/16

    摘要: Provided is an apparatus and method of displaying power line communication channel information. The apparatus for displaying power line communication (PLC) channel information includes a channel information determining unit which performs PLC channel estimation and determines channel information including a bandwidth which is available for a user in a power line communication network; and a channel information displaying unit which displays the channel information to the user. Since channel information is determined through channel estimation and displayed to a user, it is possible to easily check whether a channel can be used before installing a power line communication (PLC) device. In an application, information on kinds of a service which can be selected by the user or expected quality of the service can be previously checked. Accordingly, the user can know whether the communication can be performed, without installing a communication device or executing a communication application which requires much time and effort. Accordingly, it is possible to reduce time and effort necessary for finding an adequate communication point.

    摘要翻译: 提供一种显示电力线通信信道信息的装置和方法。 用于显示电力线通信(PLC)信道信息的装置包括执行PLC信道估计的信道信息确定单元,并且确定包括在电力线通信网络中可用于用户的带宽的信道信息; 以及向用户显示频道信息的频道信息显示单元。 由于信道信息通过信道估计确定并显示给用户,所以可以容易地检查在安装电力线通信(PLC)装置之前是否可以使用信道。 在应用中,可以预先检查可以由用户选择的服务的种类或服务的预期质量的信息。 因此,用户可以知道是否可以执行通信,而不需要安装通信设备或执行需要很多时间和精力的通信应用。 因此,可以减少找到足够通信点所需的时间和精力。

    Analog/digital signal processor and analog/digital signal processing method
    4.
    发明授权
    Analog/digital signal processor and analog/digital signal processing method 失效
    模拟/数字信号处理器和模拟/数字信号处理方法

    公开(公告)号:US07436457B2

    公开(公告)日:2008-10-14

    申请号:US11025371

    申请日:2004-12-30

    IPC分类号: H04N3/27

    摘要: An analog/digital signal processor outputting analog input signals without eliminating copy protection signals from analog input signals, analog input signals having been subjected to copy protection process such as macrovision without adding complicated processes. The analog/digital signal processor for receiving input signals and outputting received input signals to a predetermined appliance through an analog or a digital communication unit, includes: a control unit determining whether the input signals are digital or analog signals and controlling a processing path and an output path of the input signals in accordance with the determination result; and a switching unit switching the input signals to the analog or the digital communication unit under the control of the control unit. When the input signals are analog signals, the control unit sets the processing path of the input signals to the switching unit and the switching unit switches the input signals to the analog communication unit.

    摘要翻译: 模拟/数字信号处理器输出模拟输入信号,而不消除来自模拟输入信号的复制保护信号,模拟输入信号已经受到诸如宏观监视的复制保护处理,而不需要增加复杂的处理。 用于接收输入信号并通过模拟或数字通信单元将预定设备输出的模拟/数字信号处理器包括:控制单元,确定输入信号是数字信号还是模拟信号,并控制处理路径和 根据确定结果输入信号的输出路径; 以及切换单元,其在所述控制单元的控制下将所述输入信号切换到所述模拟或数字通信单元。 当输入信号是模拟信号时,控制单元将输入信号的处理路径设置到切换单元,切换单元将输入信号切换到模拟通信单元。

    Analog/digital signal processor and analog/digital signal processing method
    5.
    发明申请
    Analog/digital signal processor and analog/digital signal processing method 失效
    模拟/数字信号处理器和模拟/数字信号处理方法

    公开(公告)号:US20050193423A1

    公开(公告)日:2005-09-01

    申请号:US11025371

    申请日:2004-12-30

    摘要: An analog/digital signal processor outputting analog input signals without eliminating copy protection signals from analog input signals, analog input signals having been subjected to copy protection process such as macrovision without adding complicated processes. The analog/digital signal processor for receiving input signals and outputting received input signals to a predetermined appliance through an analog or a digital communication unit, includes: a control unit determining whether the input signals are digital or analog signals and controlling a processing path and an output path of the input signals in accordance with the determination result; and a switching unit switching the input signals to the analog or the digital communication unit under the control of the control unit. When the input signals are analog signals, the control unit sets the processing path of the input signals to the switching unit and the switching unit switches the input signals to the analog communication unit.

    摘要翻译: 模拟/数字信号处理器输出模拟输入信号,而不消除来自模拟输入信号的复制保护信号,模拟输入信号已经受到诸如宏观监视的复制保护处理,而不需要增加复杂的处理。 用于接收输入信号并通过模拟或数字通信单元将预定设备输出的模拟/数字信号处理器包括:控制单元,确定输入信号是数字信号还是模拟信号,并控制处理路径和 根据确定结果输入信号的输出路径; 以及切换单元,其在所述控制单元的控制下将所述输入信号切换到所述模拟或数字通信单元。 当输入信号是模拟信号时,控制单元将输入信号的处理路径设置到切换单元,切换单元将输入信号切换到模拟通信单元。

    Surge voltage preventing D-sub connector
    7.
    发明授权
    Surge voltage preventing D-sub connector 失效
    浪涌电压防止D-sub连接器

    公开(公告)号:US5662483A

    公开(公告)日:1997-09-02

    申请号:US572723

    申请日:1995-12-14

    CPC分类号: H01R13/6485 H01R13/10

    摘要: An electrical coupling configured to prevent voltage surges during coupling and uncoupling. A plurality of ground terminals and a plurality of signal terminals are arrayed to open onto an exterior mating surface of an electrical coupling such as a D-sub type electrical connector, with the distal ends of the ground terminals protruding outwardly farther from their corresponding pinholes towards the exterior mating surface than the distal ends of the signal terminals. These configurations prevent the input and output controlling circuit stages from being disabled by the occurrence of noise superimposed upon the power lines or momentary surges of voltage generated while the system is temporarily ungrounded during coupling, with an assurrance that during coupling, the ground terminals establish electrically conducting paths before the signal terminals. These configurations are suitable for printer cables, repeater cables and connector cables of other devices.

    摘要翻译: 电耦合,其被配置为在耦合和解耦期间防止电压浪涌。 排列多个接地端子和多个信号端子以打开到诸如D型子电连接器的电耦合器的外部配合表面上,其中接地端子的远端向外远离其相应的针孔向外突出,朝向 外部配合表面比信号端子的远端。 这些配置防止输入和输出控制电路级被叠加在电源线上的噪声的发生或耦合期间系统暂时不接地时产生的电压的瞬时浪涌而被禁用,同时保证在耦合过程中接地端子电气 在信号端子之前传导路径。 这些配置适用于其他设备的打印机电缆,中继器电缆和连接器电缆。

    PORTABLE SPEAKER OF PORTABLE MULTIMEDIA DEVICE
    8.
    发明申请
    PORTABLE SPEAKER OF PORTABLE MULTIMEDIA DEVICE 审中-公开
    便携式多媒体设备便携式扬声器

    公开(公告)号:US20070121981A1

    公开(公告)日:2007-05-31

    申请号:US11468047

    申请日:2006-08-29

    IPC分类号: H04R1/02 H04R9/06

    CPC分类号: H04R5/02

    摘要: A portable speaker of a portable multimedia device includes a digital amplifier to receive a digital audio signal from the portable multimedia device and to digitally process and output the received digital audio signal to a speaker unit, and a battery to supply electric power to at least one of the digital amplifier and the portable multimedia device.

    摘要翻译: 一种便携式多媒体装置的便携式扬声器包括:数字放大器,用于从便携式多媒体装置接收数字音频信号,并将所接收的数字音频信号数字处理并输出到扬声器单元;以及电池,用于向至少一个 的数字放大器和便携式多媒体设备。