Video communication/monitoring apparatus and method therefor

    公开(公告)号:US06226031B1

    公开(公告)日:2001-05-01

    申请号:US09176994

    申请日:1998-10-22

    IPC分类号: H04N714

    摘要: In one embodiment, a cost-effective videophone device acts as a security monitor and includes a programmable processor circuit capable of communicating over a conventional communications channel, such as a POTS line, and of generating video data for display on a television set. The device includes a video source, an interface circuit, including a modem transmitting and receiving video and audio data over the channel; an EEPROM circuit for storing a program to control the videophone apparatus; and a display driver circuit for generating video data to the display. The programmable processor circuit includes a DSP-type processor for processing video data and a general-purpose processor for executing the stored program and controlling the operation of the videophone apparatus. Further, a code is used to designate one of multiple operations for various interacting processor circuits communicating in the same system.

    METHODS, ALGORITHMS, CIRCUITS, AND SYSTEMS FOR DETERMINING A REFERENCE CLOCK FREQUENCY AND/OR LOCKING A LOOP OSCILLATOR
    2.
    发明申请
    METHODS, ALGORITHMS, CIRCUITS, AND SYSTEMS FOR DETERMINING A REFERENCE CLOCK FREQUENCY AND/OR LOCKING A LOOP OSCILLATOR 有权
    用于确定参考时钟频率和/或锁定环路振荡器的方法,算法,电路和系统

    公开(公告)号:US20120146691A1

    公开(公告)日:2012-06-14

    申请号:US13332833

    申请日:2011-12-21

    IPC分类号: H03L7/08

    CPC分类号: H03L7/06 G06F1/12 H03L7/0807

    摘要: Apparatuses, methods, systems, algorithms, and circuits for reference clock frequency determination are disclosed. In one embodiment, a circuit for detecting a reference clock frequency can include a clock counter configured to count a number of cycles of the reference clock over a predetermined portion of a sleep clock to provide a reference clock cycle count, where the sleep clock has a known frequency and a predetermined accuracy; a frequency estimator configured to estimate the reference clock frequency from the reference clock cycle count and the known frequency of the sleep clock; and a frequency selector configured to select a closest frequency to the estimated reference clock frequency from a plurality of allowed frequencies.

    摘要翻译: 公开了用于参考时钟频率确定的装置,方法,系统,算法和电路。 在一个实施例中,用于检测参考时钟频率的电路可以包括时钟计数器,其被配置为对睡眠时钟的预定部分上的参考时钟的周期数进行计数,以提供参考时钟周期计数,其中睡眠时钟具有 已知频率和预定精度; 频率估计器,被配置为从所述参考时钟周期计数和所述睡眠时钟的已知频率估计所述参考时钟频率; 以及频率选择器,被配置为从多个允许的频率中选择与估计的参考时钟频率最接近的频率。

    Mobile WLAN repeater system
    3.
    发明授权
    Mobile WLAN repeater system 有权
    移动WLAN中继器系统

    公开(公告)号:US08159991B1

    公开(公告)日:2012-04-17

    申请号:US13230194

    申请日:2011-09-12

    IPC分类号: H04W4/00

    CPC分类号: H04W4/027 H04W4/046 H04W4/50

    摘要: A wireless local area network module including an input configured to receive a control signal, wherein the control signal indicates whether a vehicle is in a parked position. The wireless local area network module further includes a wireless local area network transceiver associated with the vehicle. The wireless local area network transceiver is configured to i) receive data packets via a first wireless communication channel, and ii) in response to the control signal indicating that the vehicle is in a parked position, repeat the data packets over the first wireless communication channel.

    摘要翻译: 一种无线局域网模块,包括被配置为接收控制信号的输入,其中所述控制信号指示车辆是否处于停放位置。 无线局域网模块还包括与车辆相关联的无线局域网收发器。 无线局域网收发器被配置为i)经由第一无线通信信道接收数据分组,以及ii)响应于指示车辆处于停放位置的控制信号,通过第一无线通信信道重复数据分组 。

    Apparatus, method and computer program product for detection of a security breach in a network
    4.
    发明授权
    Apparatus, method and computer program product for detection of a security breach in a network 有权
    用于检测网络中安全漏洞的装置,方法和计算机程序产品

    公开(公告)号:US07877805B1

    公开(公告)日:2011-01-25

    申请号:US11818104

    申请日:2007-06-13

    IPC分类号: G06F21/00

    摘要: A method for detecting a security breach in a network comprises at one of a plurality of transceivers each having a different media access control address, receiving a signal from an access point, the signal representing one or more packets of data, determining a source media access control address for each of the packets, and alerting the access point when the source media access control address of one of the packets is the media access control address of the transceiver.

    摘要翻译: 用于检测网络中的安全漏洞的方法包括:多个收发器之一,每个收发器具有不同的媒体访问控制地址,从接入点接收信号,表示一个或多个数据分组的信号,确定源媒体访问 每个分组的控制地址,并且当其中一个分组的源媒体访问控制地址是收发器的媒体访问控制地址时,提示接入点。

    Apparatus, method and computer program product for detection of a security breach in a network
    5.
    发明授权
    Apparatus, method and computer program product for detection of a security breach in a network 有权
    用于检测网络中安全漏洞的装置,方法和计算机程序产品

    公开(公告)号:US07293289B1

    公开(公告)日:2007-11-06

    申请号:US10242135

    申请日:2002-09-10

    IPC分类号: G08B23/00

    摘要: A method, apparatus, and computer-readable media for detecting a security breach in a network comprising an access point and a plurality of transceivers each having a different media access control address comprises, at one of the transceivers, receiving a signal from the access point, the signal representing one or more packets of data; determining a source media access control address for each of the packets; and transmitting an alert packet to the access point when the source media access control address of one of the packets is the media access control address of the transceiver.

    摘要翻译: 一种用于检测网络中的安全漏洞的方法,装置和计算机可读介质,包括接入点和每个具有不同媒体访问控制地址的多个收发器,包括在所述收发机之一接收来自所述接入点的信号 ,表示一个或多个数据包的信号; 确定每个分组的源媒体访问控制地址; 以及当所述分组之一的源媒体访问控制地址是所述收发机的媒体访问控制地址时,向所述接入点发送警报包。

    Wearable access point
    6.
    发明授权
    Wearable access point 有权
    穿戴式接入点

    公开(公告)号:US08208975B1

    公开(公告)日:2012-06-26

    申请号:US13269766

    申请日:2011-10-10

    IPC分类号: H04B1/38 H04B1/04

    摘要: A portable access point including a power source having a state of charge, a wireless local area network transceiver configured to communicate with a wireless client device, and a wireless wide area network transceiver configured to i) access the Internet, and ii) provide the wireless client device access to the Internet, a control module configured to activate a sleep mode of the wireless wide area network transceiver in response to packets of data being not being received at the wireless wide area network transceiver for a predetermined period, wherein the predetermined period is based on the state of charge of the power source. The wireless wide area network transceiver is configured to, in response to activation of the sleep mode, halt wireless transmissions of packets of data to the Internet.

    摘要翻译: 包括具有充电状态的电源的便携式接入点,被配置为与无线客户端设备进行通信的无线局域网收发机以及被配置为i)接入因特网的无线广域网收发机,以及ii)提供无线 客户端设备访问因特网,控制模块,被配置为响应于在无线广域网收发器处未被接收的数据分组来激活无线广域网收发信机的睡眠模式,其中预定时段是 基于电源的充电状态。 无线广域网收发器被配置为响应于休眠模式的激活而停止向因特网的数据包的无线传输。

    Apparatus, method and computer program product for detection of a security breach in a network
    7.
    发明授权
    Apparatus, method and computer program product for detection of a security breach in a network 有权
    用于检测网络中安全漏洞的装置,方法和计算机程序产品

    公开(公告)号:US08151351B1

    公开(公告)日:2012-04-03

    申请号:US13013294

    申请日:2011-01-25

    IPC分类号: H04L29/06

    摘要: A method for detecting a security breach in a network comprises at one of a plurality of transceivers each having a different media access control address, receiving a signal from an access point, the signal representing one or more packets of data, determining a source media access control address for each of the packets, and alerting the access point when the source media access control address of one of the packets is the media access control address of the transceiver.

    摘要翻译: 用于检测网络中的安全漏洞的方法包括:多个收发器之一,每个收发器具有不同的媒体访问控制地址,从接入点接收信号,表示一个或多个数据分组的信号,确定源媒体访问 每个分组的控制地址,并且当其中一个分组的源媒体访问控制地址是收发器的媒体访问控制地址时,提示接入点。

    Vehicle for recording and reproducing digital data
    9.
    发明授权
    Vehicle for recording and reproducing digital data 有权
    用于记录和再现数字数据的车辆

    公开(公告)号:US07457676B1

    公开(公告)日:2008-11-25

    申请号:US10184302

    申请日:2002-06-26

    IPC分类号: G06F17/00

    CPC分类号: G11B27/11

    摘要: An apparatus comprising a vehicle and a media player/recorder physically connected with the vehicle, the media player/recorder comprising a wireless receiver to receive a signal representing encoded media data; a storage device to store the encoded media data; a processor comprising a storage controller to retrieve the encoded media data from the storage device, and a digital signal processor to decode the encoded media data retrieved by the storage controller; and an output circuit to output the decoded media data from the processor.

    摘要翻译: 一种包括车辆和与车辆物理连接的媒体播放器/记录器的装置,所述媒体播放器/记录器包括:无线接收器,用于接收表示编码的媒体数据的信号; 存储装置,用于存储编码的媒体数据; 处理器,包括存储控制器,用于从存储设备检索编码的媒体数据;以及数字信号处理器,用于对由存储控制器检索的编码媒体数据进行解码; 以及输出电路,用于从处理器输出解码的媒体数据。

    Integrated circuit, method, and computer program product for recording and reproducing digital data
    10.
    发明授权
    Integrated circuit, method, and computer program product for recording and reproducing digital data 有权
    用于记录和再现数字数据的集成电路,方法和计算机程序产品

    公开(公告)号:US07315764B1

    公开(公告)日:2008-01-01

    申请号:US10184299

    申请日:2002-06-26

    IPC分类号: G06F17/00

    摘要: An integrated circuit to control a media player/recorder having a wireless receiver, a storage device, and an output circuit, wherein the wireless receiver receives a signal representing encoded media data, and a method and computer program product for same. It comprises a processor comprising a digital signal processor, and a storage controller responsive to the digital signal processor to store the encoded media data in the storage device; a read channel responsive to the storage controller to read the encoded media data from the storage device; wherein the digital signal processor comprises a decoder to decode the retrieved encoded media data; and a digital-to-analog converter to convert the media data decoded by the decoder to an analog signal, wherein the analog signal is output to the output circuit.

    摘要翻译: 一种用于控制具有无线接收器,存储装置和输出电路的媒体播放器/记录器的集成电路,其中所述无线接收器接收表示编码的媒体数据的信号,以及用于其的方法和计算机程序产品。 它包括一个包括一个数字信号处理器的处理器和一个响应数字信号处理器将编码的媒体数据存储在存储装置中的存储控制器; 读取通道,响应于存储控制器从存储设备读取编码的媒体数据; 其中所述数字信号处理器包括用于解码所检索的编码媒体数据的解码器; 以及数模转换器,用于将由解码器解码的媒体数据转换为模拟信号,其中模拟信号被输出到输出电路。