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公开(公告)号：US4451858A
公开(公告)日：1984-05-29
申请号：US339987
申请日：1982-01-18
摘要： An arrangement for recording an analog signal onto magnetic tape in which the analog signal modulates a square wave bias field by moving the negative-going transition of the square wave so that the average of the positive portion and negative portion of the square wave, equals the instantaneous value of the analog signal. The period of the total square wave, is maintained constant. The analog signal is compared to a periodic triangular-shaped wave, in a comparator, and the output of the comparator becomes switched in polarity whenever the analog modulating signal is equal in value to the instantaneous value of the triangular wave. The point at which polarity is switched corresponds to an intersection of the analog signal superimposed on the triangular wave. The resultant modulated square wave is applied to a recording head.
摘要翻译： 用于将模拟信号记录到磁带上的装置，其中模拟信号通过移动方波的负向转换来调制方波偏置场，使得方波的正部分和负部分的平均值等于 模拟信号的瞬时值。 总方波的周期保持不变。 在比较器中将模拟信号与周期性三角形波进行比较，只要模拟调制信号的值与三角波的瞬时值相等，比较器的输出就变为极性。 极性切换的点对应于叠加在三角波上的模拟信号的交点。 所得到的调制方波被施加到记录头。
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公开(公告)号：US4107752A
公开(公告)日：1978-08-15
申请号：US732142
申请日：1976-10-13
CPC分类号： G11B5/74
摘要： A magnetic storage disc for storing information comprises a spiral of magnetic tape supported edgewise on a disc having a flat bottom surface, one or both sides of the magnetic tape being available for recording information thereon.
摘要翻译： 用于存储信息的磁存储盘包括在具有平坦底表面的盘上沿边支撑的磁带螺旋，磁带的一侧或两侧可用于在其上记录信息。
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3.发明授权Dial up telephone conferencing system controlled by an online computer network 有权拨打由在线计算机网络控制的电话会议系统公开(公告)号：US08077844B2
公开(公告)日：2011-12-13
申请号：US12410269
申请日：2009-03-24
IPC分类号： H04M11/00
CPC分类号： H04M3/56 , H04M3/563 , H04M3/567 , H04M7/0009 , H04M7/0012 , H04M7/003 , H04M7/06 , H04M7/126 , H04M7/128 , H04M11/00 , H04M2203/5009 , H04M2203/5027 , H04M2203/5054 , H04M2207/12 , H04M2242/16
摘要： In a telephone conferencing system, a digital communication network such as the Internet is used to establish and control the telephone connections between multiple conferees with the telephone network being the means of exchanging verbal information. Each conferee may have a computer connected to the digital network, and each has an independent telephone instrument connected to the public switched telephone network. An in-charge conferee utilizes his computer containing appropriate software to initiate the conference and to control the participation of the conferees. The in-charge conferee sends digital control signals to a switch interface controlling a telephone switch as a gateway to the telephone network using SS7 control signals. These SS7 control signals include the commands by which the conferee telephones are rung up, brought on line, or dropped from the conference. The switch provides telephone status information back over the digital network, and the in-charge conferee, as well as other conferees provided with appropriate software, display this status information on their PC monitors.
摘要翻译： 在电话会议系统中，诸如因特网之类的数字通信网络用于建立和控制多个与会者之间的电话连接，电话网络是交换口头信息的手段。 每个与会者可以具有连接到数字网络的计算机，并且每个都具有连接到公共交换电话网络的独立电话乐器。 负责人的同事利用其包含适当软件的电脑启动会议并控制与会者的参与。 负责与会者将数字控制信号发送到控制电话交换机的交换机接口，作为使用SS7控制信号的电话网关的网关。 这些SS7控制信号包括与会者电话上线，上线或从会议中丢弃的命令。 交换机通过数字网络提供电话状态信息，并且负责人的同事以及与适当软件一起提供的其他与会者在其PC显示器上显示该状态信息。
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公开(公告)号：US06593972B1
公开(公告)日：2003-07-15
申请号：US09076377
申请日：1998-05-12
IPC分类号： H04N708
CPC分类号： H04N21/4223 , H04N5/775 , H04N5/913 , H04N5/9201 , H04N7/083 , H04N7/085 , H04N7/088 , H04N7/16 , H04N21/44008 , H04N21/4758 , H04N21/835 , H04N2005/91342
摘要： An interactive display system is provided for use with (i) a program source having an associated video output signal and a digital data stream, the digital data stream being modulated on the video output signal, and (ii) a monitor in communication with the program source for displaying the output, the display system. The system in a preferred embodiment has a data decoder, for separating the digital data stream and a viewer control box. The control box has a user input for receiving user selections, a data input in communication with the data decoder for receiving the digital data stream, and a program execution module in communication with the user input and the data input. A video cassette for use in such a system is also provided.
摘要翻译： 提供交互式显示系统，用于（i）具有相关联的视频输出信号和数字数据流的节目源，数字数据流被调制在视频输出信号上，以及（ii）与节目通信的监视器 用于显示输出的源，显示系统。 优选实施例中的系统具有用于分离数字数据流的数据解码器和观看者控制盒。 控制箱具有用于接收用户选择的用户输入，与用于接收数字数据流的数据解码器通信的数据，以及与用户输入和数据输入通信的程序执行模块。 还提供了一种用于这种系统的录像带。
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公开(公告)号：US4818119A
公开(公告)日：1989-04-04
申请号：US80979
申请日：1987-08-03
IPC分类号： B61K9/04 , B61K9/06 , F16B31/02 , G01K20060101 , G01K5/48 , G01K11/00 , G01K11/06 , G01K1/14
CPC分类号： G01K5/483 , F16C19/525 , G01K11/00 , G01K11/06 , F16C35/063
摘要： A temperature warning device for monitoring the temperature of an article and for providing a dependable signal that a preselected temperature has been reached. The device includes an axially extending bore into which a heat responsive element, a driver, and a sensing indicator are arranged. The bore is normally sealed by a closure plug to prevent failure due to contaminants. Upon reaching a preselected temperature the element exerts force against the driver which in turn forcibly removes the closure plug, exposing the indicator.
摘要翻译： 一种温度警告装置，用于监测制品的温度并提供已达到预选温度的可靠信号。 该装置包括轴向延伸的孔，热响应元件，驱动器和感测指示器布置在该孔中。 孔通常由封闭塞密封，以防止由于污染物而导致的故障。 当达到预选温度时，元件对驱动器施加力，这又强制地移除封闭塞，暴露指示器。
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公开(公告)号：US4183028A
公开(公告)日：1980-01-08
申请号：US946849
申请日：1978-09-29
CPC分类号： G01D15/005 , G06K15/10
摘要： An arrangement for high speed recorders to reduce the time for recording information, comprising data storage means for storing elements of information to be recorded, recording means for recording information on a recording medium, means for transmitting said elements to said recording means, said recording means being operable to record within a predetermined time duration said elements of information transmitted from said data storage means, and means for reducing the recording time operatively associated with said data transmission means and comprising means for detecting the value of an element of information transmitted from said data storage means and means for shipping said recording step when said information has a predetermined value.
摘要翻译： 一种用于高速记录器减少用于记录信息的时间的装置，包括用于存储要被记录的信息元素的数据存储装置，用于在记录介质上记录信息的记录装置，用于将所述元件发送到所述记录装置的装置，所述记录装置 可操作以在预定时间内记录从所述数据存储装置发送的所述信息元素，以及用于减少与所述数据传输装置可操作地相关联的记录时间的装置，并且包括用于检测从所述数据发送的信息的元素的值的装置 当所述信息具有预定值时，用于运送所述记录步骤的存储装置和装置。
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7.发明授权公开(公告)号：US06480474B2
公开(公告)日：2002-11-12
申请号：US09819079
申请日：2001-04-30
IPC分类号： H04L1216
CPC分类号： H04M3/56 , H04M3/563 , H04M3/567 , H04M7/0021 , H04M7/003 , H04M7/06 , H04M7/126 , H04M7/128 , H04M11/00 , H04M2203/5009 , H04M2203/5027 , H04M2203/5054 , H04M2207/12
摘要： A digital communication network such as the Internet is used to establish and control the telephone connections between two conferees with the telephone network being the means of exchanging verbal information. Each of the two conferees has a computer connected to the digital network, and each has an independent telephone instrument connected to the public switched telephone network. One of the conferees utilizes his computer containing appropriate software to initiate the call to the other conferee. The initiating conferee sends digital control information to a switch interface controlling a telephone switch as a gateway to the telephone network using SS7 control signals which implements the telephone connection between the conferees. The switch also provides telephone status information transmitted back over the digital network, and the status information is displayed on the computer monitors of the conferees.
摘要翻译： 诸如因特网之类的数字通信网络用于建立和控制两个与会者之间的电话连接，电话网络是交换口头信息的手段。 两位与会者中的每一位都有连接到数字网络的计算机，并且每个都具有连接到公共交换电话网络的独立电话乐器。 其中一位与会者利用其包含适当软件的电脑，向另一位与会人员发起呼叫。 发起会议者使用实施与会者之间的电话连接的SS7控制信号，向控制电话交换机的交换机接口发送数字控制信息作为到电话网络的网关。 交换机还提供通过数字网络传回的电话状态信息，并且状态信息显示在与会者的计算机监视器上。
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8.发明授权Dial up telephone conferencing system controlled by an online computer network 失效拨打由在线计算机网络控制的电话会议系统公开(公告)号：US06266328B1
公开(公告)日：2001-07-24
申请号：US09587080
申请日：2000-06-03
IPC分类号： H04L1216
CPC分类号： H04M3/56 , H04M3/563 , H04M3/567 , H04M7/0009 , H04M7/0012 , H04M7/003 , H04M7/06 , H04M7/126 , H04M7/128 , H04M11/00 , H04M2203/5009 , H04M2203/5027 , H04M2203/5054 , H04M2207/12 , H04M2242/16
摘要： In a telephone conferencing system, a digital communication network such as the Internet is used to establish and control the telephone connections between multiple conferees with the telephone network being the means of exchanging verbal information. Each conferee may have a computer connected to the digital network, and each has an independent telephone instrument connected to the public switched telephone network. An in-charge conferee utilizes his computer containing appropriate software to initiate the conference and to control the participation of the conferees. The in-charge conferee sends digital control signals to a switch interface controlling a telephone switch as a gateway to the telephone network using SS7 control signals. These SS7 control signals include the commands by which the conferee telephones are rung up, brought on line, or dropped from the conference. The switch provides telephone status information back over the digital network, and the in-charge conferee, as well as other conferees provided with appropriate software, display this status information on their PC monitors.
摘要翻译： 在电话会议系统中，诸如因特网之类的数字通信网络用于建立和控制多个与会者之间的电话连接，电话网络是交换口头信息的手段。 每个与会者可以具有连接到数字网络的计算机，并且每个都具有连接到公共交换电话网络的独立电话乐器。 负责人的同事利用其包含适当软件的电脑启动会议并控制与会者的参与。 负责与会者将数字控制信号发送到控制电话交换机的交换机接口，作为使用SS7控制信号的电话网关的网关。 这些SS7控制信号包括与会者电话上线，上线或从会议中丢弃的命令。 交换机通过数字网络提供电话状态信息，并且负责人的同事以及与适当软件一起提供的其他与会者在其PC显示器上显示该状态信息。
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公开(公告)号：US4492990A
公开(公告)日：1985-01-08
申请号：US470435
申请日：1983-02-28
CPC分类号： G11B20/24 , G11B20/10527 , G11B5/09
摘要： A system for recording audio and video signals on magnetic and other media including a generator of a time-reference square-wave signal, a circuit for combining the dc level with an input audio or video signal, and a sampling circuit wherein the sum of the input signal and the dc level are sampled in synchronism with the square-wave signal. The time-reference signal and a second signal, delayed therefrom, are then recorded by saturation of the magnetic medium in both positive and negative directions. The amount of delay between the two recorded signals is proportional to the amplitudes of the successive samples of the sampling circuit. After playback, the original input signal is retrieved from the recorded signals by comparing successive samples with a succession of ramp waveforms and filtering out the sampling spectrum and the dc level.
摘要翻译： 一种用于在包括时基参考方波信号的发生器的磁性和其它介质上记录音频和视频信号的系统，用于将直流电平与输入音频或视频信号组合的电路以及采样电路， 输入信号和直流电平与方波信号同步采样。 然后通过磁介质在正向和负向的饱和度来记录时间参考信号和从其延迟的第二信号。 两个记录信号之间的延迟量与采样电路的连续采样的振幅成比例。 播放后，通过将连续样本与一系列斜坡波形进行比较，滤除出采样频谱和直流电平，从记录信号中检索原始输入信号。
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10.发明授权Magnetic tape recorder/reproducer for ratio recording with synchronized internal and external clock rates 失效具有同步内部和外部时钟速率的比率记录的磁带录音机/再现器
公开(公告)号：US4127878A
公开(公告)日：1978-11-28
申请号：US700521
申请日：1976-06-28
CPC分类号： G11B20/1411 , H04L25/4904
摘要： A data processing system which synchronizes an internal clock with an external clock. The system can be incorporated as part of a magnetic reproducer apparatus or magnetic recorder apparatus. The recorder/reproducer apparatus utilizes ratio encoding schemes to convert conventional data into encoded data to be recorded onto a magnetic medium. It can also read the encoded data from a magnetic medium and convert it back into conventional data. In either case, the synchronized internal clock is utilized as the time base for the ratio encoding.
摘要翻译： 内部时钟与外部时钟同步的数据处理系统。 该系统可以作为磁性再现装置或磁记录装置的一部分而被并入。 记录器/再现装置利用比率编码方案将常规数据转换为要记录在磁介质上的编码数据。 它还可以从磁介质读取编码数据并将其转换成常规数据。 在任一情况下，同步的内部时钟被用作比率编码的时基。
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