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1.发明授权
公开(公告)号：US3916294A
公开(公告)日：1975-10-28
申请号：US45322174
申请日：1974-03-21
申请人： MAGNAVOX CO
发明人： KENNEDY KENNETH E
CPC分类号： G05F1/565
摘要： A voltage regulating circuit in which the suppression of the ripple component of the output voltage is maintained at input voltage levels insufficient to support the regulation of the steady output voltage component. The ripple suppression is achieved at low input voltage levels without additional active devices. Through incorporation of a resistor in a circuit location not normally including a resistor, and by appropriate selection of component values, the ripple suppression at low input voltage levels is achieved without appreciable deterioration of the output voltage regulation under normal operating conditions.
摘要翻译： 一种电压调节电路，其中抑制输出电压的纹波分量保持在不足以支持稳定输出电压分量调节的输入电压电平。 在低输入电压电平下实现纹波抑制，无需其他有源器件。 通过在通常不包括电阻器的电路位置并入电阻器，并且通过适当选择元件值，在正常工作条件下实现低输入电压电平下的纹波抑制，而不会明显降低输出电压调节。
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公开(公告)号：US3913029A
公开(公告)日：1975-10-14
申请号：US47648474
申请日：1974-06-05
申请人： MAGNAVOX CO
发明人： CASPARI FRED W , JOHNSON WAYNE C
CPC分类号： H03J7/28
摘要： Apparatus and method for providing an automatic frequency tuning system capable of supplying a local oscillator signal with a preselected frequency. The frequency of an output signal of the local oscillator is electronically varied across a frequency region which includes the preselected frequency. The output signal of the local oscillator is combined with the output signal of a reference signal generator. After the combination of the local oscillator signal with the reference oscillator signal produces a preestablished condition which is the result of the local oscillator signal attaining the preselected frequency, the frequency of the local oscillator signal is held constant. The local oscillator signal is thereafter compared to the reference oscillation signal and a change in the local oscillator signal frequency is corrected by means of an automatic frequency control feedback loop containing a discrimintor circuit.
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公开(公告)号：US3882280A
公开(公告)日：1975-05-06
申请号：US42617673
申请日：1973-12-19
申请人： MAGNAVOX CO
发明人： GOUTMANN MICHEL M
摘要： Apparatus and method for combining digitized information, especially digitally encoded audio information, received from a plurality of input data channels for distribution in a digital communication system. Upon identification of a preselected digital sequence in one of the input channels, the apparatus couples the channel displaying the preselected condition to the communication system until identification is made of the preselected digital sequence in a different channel. At that time, the data channel, most recently displaying the preselected data sequence, is coupled to the communication system, replacing the channel previously coupled to the communication system. When the information in the input channels is comprised of digitalencoded vocal data, the preselected condition identifies the initiation of information in the channel. A plurality of channels bearing digitally encoded vocal information can be coupled to the communication system in this manner, the communication system receiving sampled data from each active channel. An audio reconstruction of the decoded information from the communication system resembles the simultaneous or conferenced reception of a plurality of channels of vocal information.
摘要翻译： 用于组合从多个输入数据信道接收的用于分发在数字通信系统中的数字化信息，特别是数字编码音频信息的装置和方法。 在识别输入通道之一中的预选数字序列之后，装置将显示预选状态的通道耦合到通信系统，直到在不同信道中对预先选择的数字序列进行识别。 此时，最近显示预选数据序列的数据信道被耦合到通信系统，替换先前耦合到通信系统的信道。 当输入通道中的信息由数字编码的声音数据组成时，预先选择的条件识别信道中的信息的启动。 具有数字编码的声音信息的多个频道可以以这种方式耦合到通信系统，通信系统从每个活动信道接收采样数据。 来自通信系统的解码信息的音频重建类似于多个声道信息的同时或会议的接收。
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公开(公告)号：US3851191A
公开(公告)日：1974-11-26
申请号：US24415472
申请日：1972-04-14
申请人： MAGNAVOX CO
摘要： A portable battery operated telemetry transmitter is disclosed which senses temperature and provides a modulation signal the frequency of which is a linear function of the sensed temperature. A carrier is frequency modulated with this linear function to transmit the temperature information to a remote location. Means are also provided to time multiplex and transmit a signal representive of the transmitter battery conditions and a standard check signal indicative of satisfactory operation of the overall telemetry system.
摘要翻译： 公开了一种便携式电池操作的遥测发射器，其感测温度并提供其频率为感测温度的线性函数的调制信号。 使用该线性函数对载波进行频率调制，以将温度信息传送到远程位置。 还提供了时间复用和传输代表发射机电池条件的信号的装置以及指示整个遥测系统的令人满意的操作的标准检查信号。
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5.发明授权
公开(公告)号：US3843929A
公开(公告)日：1974-10-22
申请号：US6609370
申请日：1970-08-21
申请人： MAGNAVOX CO
发明人： MAYLE L
CPC分类号： H04N5/63 , H04W52/0241 , Y02D70/00
摘要： Apparatus for automatically turning off any device, as for example a television receiver, upon the discontinuance of a certain signal component for a preselected period of time. The automatic shut-off feature is incorporated into a conventional television receiver without in any way affecting the normal operation of the television receiver until the station to which the set is tuned, leaves the air. When a station leaves the air, this will be sensed as a loss of a signal component, as for example, the synchronizing signal and automatically thereafter there will be energized a timer mechanism which is effective after a preselected period of time to shut off the television set; but, without in any way interfering with a subsequent turning on of the set by a viewer to a selected television broadcast when the station has resumed broadcasting. The invention is particularly useful where television sets are installed in bedrooms and the televiewer falls asleep, allowing the television set to stay on after the television station has ceased broadcasting.
摘要翻译： 用于在特定信号分量中断预定时间段时自动关闭任何设备的设备，例如电视接收机。 自动关闭功能被并入传统的电视接收机中，而不影响电视接收机的正常操作，直到该组被调谐的站离开空气。 当站离开空气时，这将被感测为信号分量的损失，例如同步信号，并且此后自动通过定时器机构，其在预选的时间段之后有效以关闭电视 组; 但是，在本台已经恢复广播的情况下，不会以任何方式妨碍观众对所选择的电视广播的后续打开。 本发明在电视机安装在卧室中并且电视观众入睡时特别有用，允许电视机在电视台停止广播之后继续进行。
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公开(公告)号：US3772456A
公开(公告)日：1973-11-13
申请号：US3772456D
申请日：1970-03-26
申请人： MAGNAVOX CO
发明人： RICHESON W , ROACH J
CPC分类号： H04N1/327 , H04W52/0238 , H04W52/0241 , Y02D70/00
摘要： An improved scheme for effecting the selective energization of a fascimile or other receiver is disclosed in the form of a bisstable trigger circuit which is responsive to predetermined signals indicative of the fact that transmission of information has begun or has ended to switch between its enable and disable states. The change of state of the trigger circuit is then effective to enable or partially disable the receiver. Provision is made whereby the turn-on time may be made substantially less than the turn-off time so that the receiver will not turn-off due to noise, momentary line drop outs or other temporary interruptions in transmission.
摘要翻译： 以双稳态触发电路的形式公开了一种用于实现一个fascimile或其他接收机的选择性通电的改进方案，该双稳态触发电路响应于指示信息传输已经开始或已经结束以在其使能之间切换 并禁用状态。 触发电路的状态改变然后有效地启用或部分禁用接收器。 作出这样的准备，使得接通时间可以显着地小于关断时间，使得接收器不会由于噪声，瞬时线路丢失或传输中的其他暂时中断而关闭。
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7.发明授权E signal averaging to eliminate vertical scene modulation single tube color camera with crossed grid gratings with adjacent lin 失效E信号平直消除垂直场景调制单管彩色摄像机与交叉网格相匹配的LIN
公开(公告)号：US3758709A
公开(公告)日：1973-09-11
申请号：US3758709D
申请日：1970-06-08
申请人： MAGNAVOX CO
发明人： NELSON A
摘要： This invention relates to a system for, and method of, reproducing a color image from a composite black-and-white image. The composite black-and-white image is formed either on an exposure or is formed from a live image. In either case, modulations are provided in a first particular line pattern to obtain a representation of a first particular color. Modulations are also provided in a second particular line pattern different from the first particular line pattern to obtain a representation of a second particular color. The third color may be unmodulated. The three colors add optically to form the image luminance. To reproduce the color image, signals are provided by scanning the composite image. Means are provided for operating upon such signals in accordance with the modulations in the first particular line pattern to produce signals representating the first particular color. Means are also provided for operating upon the signals representing the composite image in accordance with the modulations in the second particular line pattern to produce signals representing the second particular color. The signals representing the first and second particular colors are then used in conjunction with the luminance to reproduce the color image.
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公开(公告)号：US3755886A
公开(公告)日：1973-09-04
申请号：US3755886D
申请日：1971-10-22
申请人： MAGNAVOX CO
发明人： HERMANN P
CPC分类号： B23K1/085 , H05K3/26 , H05K3/3468 , H05K2203/0776 , H05K2203/0786
摘要： In the process of soldering electrical connections in printed circuits, the printed circuit is passed through the crest of a fountain of solder which includes a water soluble hydrocarbon, polyethylene glycol, which wets the surfaces to be soldered. After soldering, a water wash is used to remove the polyethylene glycol and dross from the printed circuit work piece which may then be air dried with a dip in isopropyl alcohol if desired. The use of a water soluble additive provides the soldering advantages which are obtained with presently used non-water soluble materials, such as Shell Oil Company''s Peblum Oil (or equivalent) for example, and additionally provides the advantage of the use of an effective yet simple and inexpensive cleaning operation of the board after soldering by washing with water. This eliminates the necessity of using solvents which are relatively expensive and sometimes toxic and detrimental to the printed circuit component parts, their protective coatings, and identification markings.
摘要翻译： 在印刷电路中焊接电气连接的过程中，印刷电路通过焊料喷泉的顶部，其中包括水溶性烃，聚乙二醇，其润湿要焊接的表面。 在焊接之后，使用水洗从印刷电路工件中除去聚乙二醇和渣滓，然后如果需要，可以将其浸入异丙醇中进行空气干燥。
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公开(公告)号：US3753119A
公开(公告)日：1973-08-14
申请号：US3753119D
申请日：1971-04-07
申请人： MAGNAVOX CO
发明人： CLOSE E
CPC分类号： H03J1/048
摘要： A digital tuning indicator for a multiple band heterodyne type receiving device is disclosed which is capable of displaying the frequency to which the receiving device is tuned for AM and FM reception in kilohertz to the nearest kilohertz and in megahertz to the nearest one-tenth megahertz respectively, and of displaying the channel to which the device is tuned when receiving UHF television. The indicating system comprises a counter, the contents of which are periodically displayed. The counter contents are preset to a value which reflects the intermediate frequency of the particular band and a submultiple of the corresponding local oscillator frequency is gated into the counter for a prescribed time interval whereby the resultant sum in the counter at the end of the prescribed time interval reflects the actual received frequency or the corresponding channel number.
摘要翻译： 公开了一种用于多频带外差型接收装置的数字调谐指示器，其能够将接收装置调谐的频率以千赫兹为单位的AM和FM接收分别显示在最接近的千赫兹和兆赫兹到最接近的十分之一兆赫兹 并且在接收UHF电视时显示设备被调谐的频道。 指示系统包括计数器，其内容被周期性地显示。 将计数器内容预设为反映特定频带的中频的值，并将相应的本地振荡器频率的一个微分门控在计数器中规定的时间间隔，由此在规定时间结束时在计数器中产生的和 间隔反映实际接收频率或相应的频道号。
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公开(公告)号：US3701465A
公开(公告)日：1972-10-31
申请号：US3701465D
申请日：1970-12-28
申请人： MAGNAVOX CO
发明人： RICHTER ROBERT H
CPC分类号： B65D81/056 , B65D2581/055
摘要： A resilient member having three round projections on each outer side for use in a packaging container for receiving and carrying articles to be protected against shock as may be experienced in loading, transporting, and storing. In ordinary application, a cardboard tray is supported at each corner with a resilient member with the projections of such member being in registration with openings in each corner of the tray to position the resilient members, hold the tray sides together, and to form a resilient cushion at each corner for supporting an article transported in the container. In the usual circumstance, there are two trays per container, one at the bottom of the article and one at the top.
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