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21. 发明授权

US3983497A Phase locked loop 失效
标题翻译：锁相环
公开(公告)号：US3983497A
公开(公告)日：1976-09-28
申请号：US557040
申请日：1975-03-10
申请人： Wilhelm Hegeler
发明人： Wilhelm Hegeler
IPC分类号： G01R23/00 , H03D3/24 , H03L7/099 , H03B3/04
CPC分类号： H03D3/24 , G01R23/00 , H03L7/0992
摘要： A signal frequency, controlled by the output of a phase comparator, is obtained from a constant or reference signal frequency source by means of a frequency divider, the division ratio of which is voltage-controlled and variable, the control signal being obtained from the output of the phase comparator, in digital, or analog form. When in analog form, a monostable multivibrator is interposed so that a voltage-controlled divider having a division ratio of an average, predetermined factor can be used. The signal, the frequency of which is to be identified, is applied as one input to the phase comparator for comparison with the output signal from the frequency divider, the comparison providing the aforementioned division control signal.
摘要翻译：由相位比较器的输出控制的信号频率通过分频器从恒定或参考信号频率源获得，分频比是电压控制和可变的，控制信号从输出端获得的相位比较器，以数字或模拟形式。当以模拟形式插入单稳态多谐振荡器时，可以使用具有平均值，预定因子的分压比的电压控制分压器。将要识别的频率的信号作为一个输入施加到相位比较器，以与来自分频器的输出信号进行比较，比较提供前述的分频控制信号。

22. 发明授权

US3961268A Disturbance pulse detector circuit for radio receiver blanking 失效
标题翻译：用于无线电接收机消隐的扰动脉冲检测器电路
公开(公告)号：US3961268A
公开(公告)日：1976-06-01
申请号：US591318
申请日：1975-06-30
申请人： Jens Hansen
发明人： Jens Hansen
IPC分类号： H04H20/88 , H03G3/34 , H04B1/10
CPC分类号： H03G3/345
摘要： Two disturbance recognition circuits are supplied in parallel with the output of the receiver demodulator, one of them having a threshold characteristic with a sensitivity maximum only slightly above the frequency band of the received signal and a steep sensitivity frequency characteristic between that maximum and the upper edge of the signal band, while the other recognition circuit has its sensitivity well above the main sensitivity range of the first-mentioned recognition circuit. An AND-circuit is provided at the ouputs of the recognition circuits so that a blanking pulse will be produced only when both recognition circuits respond. The output pulse of the recognition circuit with the higher frequency sensitivity is broadened so that it will persist in the AND-circuit long enough to allow for the slower response time of the other recognition circuit. Blanking is disabled by a parallel switch when the rate of operation of the AND-circuit reaches a rate at which audible effects would be produced anyway.
摘要翻译：两个干扰识别电路与接收机解调器的输出并行提供，其中一个具有阈值特性，其灵敏度最大值仅略高于接收信号的频带，并且该最大值与上边缘之间的陡峭的灵敏度频率特性的信号频带，而另一个识别电路的灵敏度远高于首先提到的识别电路的主要灵敏度范围。在识别电路的输出处提供了一个AND电路，使得仅当两个识别电路响应时才产生消隐脉冲。具有较高频率灵敏度的识别电路的输出脉冲变宽，使其在AND电路中持续足够长以允许其他识别电路的响应时间较慢。当AND电路的运行速率达到可能产生声音效果的速率时，并联开关禁止消隐。

23. 发明授权

US3949401A Frequency identification circuit for broadcast traffic information reception systems 失效
标题翻译：用于广播交通信息接收系统的频率识别电路
公开(公告)号：US3949401A
公开(公告)日：1976-04-06
申请号：US551689
申请日：1975-02-21
申请人： Wilhelm Hegeler , Lambert Maschmeyer , Hans Rasehorn
发明人： Wilhelm Hegeler , Lambert Maschmeyer , Hans Rasehorn
IPC分类号： G08G1/09 , H04B7/00
CPC分类号： G08G1/094
摘要： Frequencies which respectively identify a particular transmitter, and a particular program content, and which are in a very low frequency range (from between 20 to 125 kHz can be recognized, and ditigal output control signals derived representative of whether one, or both, or none of these frequencies are present by use of a frequency selection input circuit, controlled by a change-over switch to initially select recognition of the transmitter identification which, if positive, is applied through a storage circuit having a storage time substantially longer than the switch-over rate, to provide an output signal if the selected transmitter is recognized, and hold that output signal during switch-over of the program content identification signal which, if present, will be fed back through a logic circuit to hold the output of the transmitter identification circuit as identified, and if not present, permit continued switch-over of the frequency identification circuit to continue to store transmitter identification signals, if present, but permit these signals to disappear, after the storage time, if the transmitter identification signals also cease. The time delay and storage circuit preferably include operational amplifiers, and the frequency identification circuit includes a phase-locked loop.
摘要翻译：可以识别分别识别特定发射机和特定节目内容并且处于非常低的频率范围（从20到125kHz之间的频率）的频率以及代表一个或两个或者两者的二进制输出控制信号这些频率通过使用频率选择输入电路存在，由转换开关控制，以最初选择识别发射机标识，发射机标识如果通过具有比开关转换器的存储时间大得多的存储电路被施加，如果所选择的发射机被识别，则提供输出信号，并且在节目内容识别信号的切换期间保持该输出信号，如果存在的话，将通过逻辑电路反馈以保持发射机的输出识别电路，如果不存在，允许频率识别电路继续切换以继续存储t 发射机识别信号，如果存在，但允许这些信号消失，在存储时间之后，如果发射机识别信号也停止。时间延迟和存储电路优选地包括运算放大器，并且频率识别电路包括锁相环。

24. 发明授权

US3902193A Cassette type tape recorder/reproducer with cassette moving carriage 失效
标题翻译： CASSETTE类型带录音机/复制器与CASSETTE移动运输
公开(公告)号：US3902193A
公开(公告)日：1975-08-26
申请号：US39322473
申请日：1973-08-30
申请人： BLAUPUNKT WERKE GMBH
发明人： HAPKE WALTER
IPC分类号： G11B15/675 , G11B23/10 , G11B15/18
CPC分类号： G11B15/67515
摘要： The carrier plate for the tape drive and magnetic heads is mounted on a scissors mount at each side. When a cassette is inserted all the way to an operating position in a guideway, the carrier plate is unlatched and descends on the scissors mount from a standby position to an operating position, while a catch prevents outward pressure against the cassette. In the meanwhile, the equipment has been switched on and an electromagnet holds a release lever in place. When the end of the tape is reached, or when the device is switched off, the electromagnet is deenergized, releasing a holding catch and setting in motion a mechanism that will raise the operating mechanism on its carrier and scissors mount and release the counter-pressure to eject the cassette, after which the standby position is restored. The various movements and latchings are powered by springs. Loading of the cassette provides energy to the spring system.

25. 发明授权

US3872420A Rotary potentiometer 失效
标题翻译：旋转电位计
公开(公告)号：US3872420A
公开(公告)日：1975-03-18
申请号：US43620974
申请日：1974-01-24
申请人： BLAUPUNKT WERKE GMBH
发明人： KOCH DIETER , GRAF PETER-JOSEF
IPC分类号： H01C10/00 , H01C10/14 , H01L9/02
CPC分类号： H01C10/14 , Y10S338/01
摘要： The resistance element of a potentiometer is a flat semicircular strip with ends having outward extensions providing jutting contact tabs that may be slipped into spring clips and inward extensions fitting into notches in a centering boss of the carrier plate of the device so that the resistance element can be accurately positioned without affixation. The rotating wiper is mounted on the inside surface of a drive wheel that has one contact that slides along the resistance element and a pair of spring contacts that engage an annular surface of a contact lug that passes under the resistance element in a channel in the carrier plate. The outer surface of the drive wheel has a spiral groove that guides a pointer. The axis of the drive wheel and of the potentiometer is skewed relative to the position of the thumb wheel by which the drive wheel is propelled, so that the spiral ridge on the thumb wheel will engage the crown teeth of the drive wheel at only one location. If the thumb wheel is made to project through a slot in a panel, the pointer will move essentially across the slot along or near the thumb wheel.
摘要翻译：电位计的电阻元件是一个扁平的半圆形条带，其端部具有向外的延伸部，其提供突出的接触片，其可以滑入弹簧夹中，并且向内延伸部配合到装置的承载板的定心凸起中的凹口中，使得电阻元件准确定位，无需固定。旋转的刮水器安装在驱动轮的内表面上，该驱动轮具有沿着阻力元件滑动的一个触点，以及一对弹簧触点，其接合在载体的通道内通过电阻元件下方的接触片的环形表面盘子。驱动轮的外表面具有引导指针的螺旋槽。驱动轮和电位器的轴线相对于驱动轮被推进的指轮的位置偏斜，使得拇指轮上的螺旋脊将仅在一个位置处接合驱动轮的冠齿。如果拇指轮通过面板上的槽突出，则指针将基本上沿着或靠近拇指轮的狭槽移动。

26. 发明授权

US3859480A Loudspeaker and attachment fitting 失效
标题翻译：扬声器和附件配件
公开(公告)号：US3859480A
公开(公告)日：1975-01-07
申请号：US36739273
申请日：1973-06-06
申请人： BLAUPUNKT WERKE GMBH
发明人： BIRKNER UDO , FRITSCH GUNTER
IPC分类号： H04R1/02
CPC分类号： H04R1/02 , H04R1/025
摘要： To secure a loudspeaker in the sound opening of a sound board, particularly when the loudspeaker must be mounted from locations accessible only with difficulty, for example in automobile receivers, a bowed thin springy sheet metal diaphragm is formed with projecting clips, projecting from the rearwardly bowed, that is, convexly bowed surface to be engaged by the loudspeaker, and with hook-like projections, projecting from the concavely bowed surface, to permit slipping one hook into the edge of the sound opening of the sound board, hooking the speaker into the clip, and then flattening the bowed diaphragm against spring pressure until the second hook engages around another side of the sound opening, of the sound board, the loudspeaker being then snapped in holding position on the diaphragm strip by another clip; the first clip can be replaced by deformable holding flaps or the like.
摘要翻译：为了将扬声器固定在声板的声音开口中，特别是当扬声器必须从难以接近的位置安装在例如汽车接收器中时，弯曲的薄弹簧片金属隔膜形成有突出的夹子，从后方突出鞠躬，即凸起的表面被扬声器接合，并且具有从凹形弯曲表面突出的钩状突起，以允许将一个钩子滑入声板的声音开口的边缘，将扬声器挂在夹子，然后使弓形隔膜抵抗弹簧压力平坦化，直到第二钩接合声板的声音的另一侧，然后扬声器通过另一个夹子卡在隔膜条上的保持位置; 可以用可变形的保持翼片等替换第一夹子。

27. 发明授权

US3795764A Television receiver with an audio section constructed to automatically receive two channel and stereophonic signals 失效
标题翻译：具有自动接收两声道和立体声信号的音频部分的电视接收机
公开(公告)号：US3795764A
公开(公告)日：1974-03-05
申请号：US3795764D
申请日：1972-09-13
申请人： BLAUPUNKT WERKE GMBH
发明人： ALTMANN A
IPC分类号： H04N7/08 , H04H20/88 , H04N5/60 , H04N7/06 , H04N7/081
CPC分类号： H04H20/88 , H04N5/607 , H04N7/06
摘要： A first audio channel is generated at a predetermined frequency; a second audio channel is generated at a first frequency which is the predetermined frequency plus a first odd multiple of half the line frequency of the television signal; a second audio channel is generated at a second frequency which is the predetermined frequency plus a second odd multiple of half of the line frequency, the difference between the first and second frequency being summed with respect to the predetermined frequency; in the receiver the predetermined frequency and the mean between the first and second frequencies are discriminated and decoded in a third discriminator tuned to the difference frequency between the predetermined frequency and substantially the mean between the first and second frequencies, and a characteristic voltage is derived from the third discriminator representative of whether the first or second, or first or third frequencies are received by the receiver to energize audio circuits accordingly.
摘要翻译：以预定频率产生第一音频频道; 在作为预定频率加上电视信号的一半频率的第一奇数倍的第一频率产生第二音频频道; 在作为预定频率加上线路频率的一半的第二奇数倍的第二频率产生第二音频频道，第一和第二频率之间的差相对于预定频率相加; 在接收机中，将预定频率和第一和第二频率之间的平均值以调整到预定频率之间的差频的第三鉴别器进行鉴别和解码，并且基本上是第一和第二频率之间的平均值，并且从代表第一或第二或第一或第三频率是否由接收机接收以相应地激励音频电路的第三鉴别器。

28. 发明授权

US3670113A Video transducer head alignment apparatus 失效
标题翻译：视频传感器头对齐设备
公开(公告)号：US3670113A
公开(公告)日：1972-06-13
申请号：US3670113D
申请日：1970-10-08
申请人： BLAUPUNKT WERKE GMBH
发明人： BRAGAS PETER
IPC分类号： G11B5/53 , H04N17/06 , G11B5/42 , G11B5/56
CPC分类号： H04N17/06 , G11B5/53 , Y10T29/4903 , Y10T29/49036
摘要： To align transducer heads on a rotating carrier, so that the gap extends exactly radially and is properly placed on the carrier, a drum-shaped support is provided with magnetic transducer heads (preferably similar to the video heads) facing inwardly and accurately located to define the orientation of the video transducers on their carrier. One of the heads is energized and the signal read from the other. The head on the carrier is then adjusted until the observed signal is a maximum, which will occur only upon accurate alignment. The heads are then fixed in place on the carrier by means of an adhesive, for example introduced in grooves between the carrier and the head.
摘要翻译：为了将传感器头对准旋转载体，使得间隙精确地径向延伸并且被适当地放置在载体上，鼓形支撑件设置有面向内且准确定位的磁性换能器头（优选类似于视频头），以定义视频传感器在其载体上的方向。其中一个头被激励，并从另一个读取信号。然后调整载波上的磁头，直到观察到的信号为最大值，这将仅在精确对准时才会发生。然后通过粘合剂将头固定在载体上，例如引入载体和头部之间的凹槽中。

29. 发明授权

US3429987A Matrix circuit for a color television receiver 失效
标题翻译：彩色电视接收机的矩阵电路
公开(公告)号：US3429987A
公开(公告)日：1969-02-25
申请号：US3429987D
申请日：1965-09-16
申请人： BLAUPUNKT WERKE GMBH
发明人： ALTMANN ALBRECHT
IPC分类号： H04N9/66 , H04N9/67 , H04N9/32 , H04N9/54
CPC分类号： H04N9/67 , H04N9/66

30. 发明授权

US2863043A Push button radio tuning mechanism with band switching contacts 失效
标题翻译：按钮无线电调谐机构带有频带切换触点
公开(公告)号：US2863043A
公开(公告)日：1958-12-02
申请号：US41715254
申请日：1954-03-18
申请人： BLAUPUNKT WERKE GMBH
发明人： OMMO SCHMIDT , JOSEF THRIEN , RUDOLF KLIMKE
IPC分类号： H03J5/12
CPC分类号： H03J5/12

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