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1. 发明授权

US4670900A Single line telephone call forwarding device 失效
标题翻译：单线电话转接设备
公开(公告)号：US4670900A
公开(公告)日：1987-06-02
申请号：US724065
申请日：1985-04-17
申请人： Herbert H. Waldman
发明人： Herbert H. Waldman
IPC分类号： H04M3/54 , H04M1/272
CPC分类号： H04M3/54
摘要： A device for enabling call forwarding instructions to be given from any telephone in the system or in any connecting system need be connected only to the phone line for which call forwarding service is provided and does not require another phone line to communicate with the device. The device employs a ring detector to detect the short ring that occurs when a call is forwarded and to detect the long ring that occurs when call forwarding is not in effect. Upon the detection of one or more short rings, the device seizes the phone line, transmits a "73" signal that cancels call forwarding, and triggers a timer that starts upon a timing interval of preset duration. If another phone call is received at the device within the preset timing interval and an authorization code is transmitted within that interval, the device enables the call forwarding instructions stored in a recorder to be changed. Thereafter, the device will twice transmit the stored call forwarding instructions to the central station within a two minute period.
摘要翻译：用于使得能够从系统中的任何电话或任何连接系统中给出呼叫转移指令的设备仅需要连接到提供呼叫转移服务的电话线路，并且不需要另一电话线与设备通信。该设备采用环形检测器检测呼叫转移时发生的短环，并检测到呼叫转移无效时发生的长环。当检测到一个或多个短环时，设备占用电话线，发送取消呼叫转移的“73”信号，并触发在预设时间间隔开始的定时器。如果在预设的时间间隔内在设备处接收到另一个电话呼叫，并且在该间隔内发送授权码，则设备使得存储在记录器中的呼叫转移指令被改变。此后，设备将在两分钟的时间内将存储的呼叫转移指令两次发送到中心站。

2. 发明授权

US4243844A Hold circuit for telephone system 失效
标题翻译：电话系统保持电路
公开(公告)号：US4243844A
公开(公告)日：1981-01-06
申请号：US943679
申请日：1978-09-19
申请人： Herbert H. Waldman
发明人： Herbert H. Waldman
IPC分类号： H04M3/428 , H04M1/00
CPC分类号： H04M3/4283
摘要： A single master unit hold circuit which can be utilized for a single or a group of telephone instruments connected to a common telephone line. A single latching circuit is coupled to the telephone line. The establishment of the hold condition may be affected in the off-hook state of the telephone instrument. Each of the telephones of the group has associated signaling capability. Each telephone can generate an actuating signal directly onto the telephone line, which is then detected by the latching circuit, and in response thereto a hold condition is placed on the telephone line. The hold condition is affected via the telephone line, by a momentary actuation of a control circuit common to the hold circuit and the control circuit; the control circuit being a part of the telephone instrument call-out circuit network. The signaling can be accomplished by the rotary dial on a dial phone instrument or by the push button pad on an instrument sold under the trademark Touch-Tone, or by means of other types of frequency generating devices. The hold condition is initiated and established while the phone instrument is in its off-hook state. Moreover, the active telephone instrument continues to remain in its voice communication state, the hold condition having been established, not withstanding, as long as the telephone receiver is not placed on-hook. A key feature of the invention is that the off-hook state and/or voice transmission state of the telephone instrument constitutes the decisive conduit or channel by which the control circuit can activate the hold circuit. The hold circuit cannot readily become activated when the telephone receiver (handset) is in the on-hook state.
摘要翻译：单个主单元保持电路，可用于连接到公共电话线路的单个或一组电话设备。单个锁存电路耦合到电话线路。保持状态的建立可能会受到电话机摘机状态的影响。该组的每个电话具有相关联的信令能力。每个电话机可以直接在电话线路上产生一个启动信号，然后由锁存电路检测，并且响应于此，保持状态被置于电话线路上。保持状态通过电话线受到保持电路和控制电路公用的控制电路的瞬时动作的影响; 控制电路是电话乐器呼出电路网络的一部分。信令可以通过拨号电话乐器上的旋转拨盘或者以商标Touch-Tone出售的乐器上的按钮按钮或其他类型的频率发生装置来完成。在电话乐器处于摘机状态时启动和建立保持状态。此外，只要电话机没有挂机，有源电话仪器继续保持其语音通信状态，保持状态已被建立，不经过理解。本发明的一个关键特征在于，电话机的摘机状态和/或语音传输状态构成控制电路可以通过其启动保持电路的决定性导线或通道。当电话接收机（手机）处于挂机状态时，保持电路不能容易地被激活。

3. 发明授权

US4251692A Telephone call restricting apparatus 失效
标题翻译：电话限制装置
公开(公告)号：US4251692A
公开(公告)日：1981-02-17
申请号：US949014
申请日：1978-10-06
申请人： Herbert H. Waldman
发明人： Herbert H. Waldman
IPC分类号： H04M1/677 , H04M3/38
CPC分类号： H04M1/677 , H04M3/38 , Y10S379/909
摘要： An apparatus for restricting telephone calls placed onto a telephone line by a telephone set, wherein an off-hook condition begins operation of the apparatus and energizes a control circuit which provides a condition in which a call can be placed onto the telephone line. A disabling circuit responds to the control circuit and establishes a disabling condition on the telephone line which defeats a telephone call when it is of a restricted type. In one embodiment, the off-hook condition starts a time delay at the end of which a predetermined frequency is placed onto the line. The occurrence of this frequency signal onto the telephone line disconnects all long distance telephone calls beyond a specified local zone. In a second embodiment, each number entered onto the telephone line is counted, and when a predetermined count is reached the disabling circuit is operated to prevent further calling. In a third embodiment, the telephone remains disabled after being placed in an off-hook condition, and all calling is prevented. However, at predetermined intervals, the telephone is enabled so that during each interval a respective number can be called. The apparatus can include an override circuit for use by special preselected individuals for overriding the disabling condition, thereby permitting such special individuals to avoid the restrictions of the telephone calls.
摘要翻译：一种用于限制通过电话机放置在电话线上的电话呼叫的装置，其中摘机状态开始该装置的操作，并激励一个控制电路，该控制电路提供呼叫可以放在电话线上的状况。禁用电路响应控制电路，并在电话线路上建立禁用状态，当电话线路处于限制类型时，电话呼叫失败。在一个实施例中，摘机状态在其结束时开始时间延迟，其中预定频率被放置在线路上。将该频率信号发生到电话线路上将所有长途电话呼叫都断开，超出指定的本地区域。在第二实施例中，对输入到电话线路上的每个号码进行计数，并且当达到预定计数时，操作禁用电路以防止进一步的呼叫。在第三实施例中，电话在被置于摘机状态后保持禁用，并且防止所有呼叫。然而，以预定间隔，电话被启用，使得在每个间隔期间可以调用相应的号码。该装置可以包括用于由特殊预先选择的个人使用以覆盖禁用条件的超控电路，从而允许这些特殊个人避免电话呼叫的限制。

4. 发明授权

US4001520A Hold circuit for telephones 失效
标题翻译：保持电话电路
公开(公告)号：US4001520A
公开(公告)日：1977-01-04
申请号：US551285
申请日：1975-02-20
申请人： Herbert H. Waldman , Kalju Meri
发明人： Herbert H. Waldman , Kalju Meri
IPC分类号： H04M3/428 , H04M1/00
CPC分类号： H04M3/4283
摘要： A hold circuit for telephones which includes a relay having a coil and normally open contacts. A normally open momentary contact switch is connected in series with the relay coil, the series combination being connected across the telephone lines. The contact switch is connected in parallel to the normally open contacts of the relay. The hold circuit captures or holds the telephone lines when the contact switch is closed and permits the telephone lines to be released upon removing the telephone handset "off the hook." In one embodiment, a parallel connection of a lamp and a capacitor is connected in series between the relay contacts and the relay coil to form a voltage divider when the relay contacts are closed.

5. 发明授权

US4768224A Single telephone line call forwarding device 失效
标题翻译：单电话线路呼叫转接设备
公开(公告)号：US4768224A
公开(公告)日：1988-08-30
申请号：US56457
申请日：1987-06-01
申请人： Herbert H. Waldman
发明人： Herbert H. Waldman
IPC分类号： H04M3/54
CPC分类号： H04M3/54
摘要： A device for enabling call forwarding instructions to be given from any telephone need be connected only to the phone line for which call forwarding service has been procured and does not require another phone line to communicate with the device. The device stores the call forwarding instructions in a recorder. The device detects the short ring that occurs on the procured service phone line when a call is forwarded and detects the long ring that occurs when call forwarding is not in effect. Upon detection of a short ring, the device seizes the procured service phone line and places a phone call to the phone line to which the previous call was forwarded. In an alternate embodiment, the device places the phone call to its own procured service phone line. In both embodiments, the device is reset to its stand-by state upon detection of a busy signal. Where a busy signal is not detected, the device transmits a signal that cancels call forwarding and triggers a timer. If another phone call is received at the device within the timing cycle of the timer and an authorization code is received, the device enables the call forwarding instructions in the recorder to be changed. If those conditions are not met the instructions in the recorder remain unchanged. Thereafter, the device twice transmits the stored call forwarding instructions to the central station and thereby reestablishes call forwarding.
摘要翻译：用于使得能够从任何电话给出呼叫转移指令的设备仅需要连接到已经购买了呼叫转移服务的电话线路，并且不需要另一电话线路与设备通信。该设备将呼叫转移指令存储在记录器中。当转接呼叫时，设备会检测到采购服务电话线上发生的短路，并检测到呼叫转移无效时发生的长时间振铃。在检测到短环时，设备抓住采购的服务电话线路，并将电话呼叫到先前呼叫转接到的电话线路。在替代实施例中，设备将电话呼叫到其自己的采购服务电话线。在两个实施例中，在检测到忙信号时，该设备被重置为其待机状态。在没有检测到忙信号的情况下，设备发送取消呼叫转移的信号并触发定时器。如果在定时器的定时周期内在设备处接收到另一个电话呼叫并且接收到授权码，则设备使得能够改变录音机中的呼叫转移指令。如果这些条件不符合，录音机中的说明书保持不变。此后，设备将存储的呼叫转移指令两次发送到中心站，从而重新建立呼叫转移。

6. 发明授权

US4726048A Telephone privacy circuit 失效
标题翻译：电话隐私电路
公开(公告)号：US4726048A
公开(公告)日：1988-02-16
申请号：US596357
申请日：1984-04-03
申请人： Herbert H. Waldman , Kalman Drebin
发明人： Herbert H. Waldman , Kalman Drebin
IPC分类号： H04M1/68 , H04M1/70
CPC分类号： H04M1/68 , H04M1/70
摘要： A telephone privacy circuit is disclosed. The privacy circuit preferably includes a voltage breakdown device which passes current only when the voltage across the device is greater than a predetermined value. The voltage breakdown device is connected in series with a telephone to be protected. The predetermined value is chosen to be lower than the line voltage across the tip and ring terminals of a telephone line when every telephone connected to that line is in the on-hook position. In one embodiment of the invention, the predetermined value is selected to be higher than the line voltage across the tip and ring terminals of the telephone line when a telephone connected to that line is placed on the off-hook condition. In another embodiment of the invention, a voltage breakdown device is connected to the gating element of an electronic latching device.
摘要翻译：公开了一种电话保密电路。隐私电路优选地包括仅当器件上的电压大于预定值时才传递电流的电压击穿器件。电压击穿装置与要保护的电话串联连接。当连接到该线的每个电话处于挂机位置时，预定值被选择为低于电话线的尖端和环形端子上的线路电压。在本发明的一个实施例中，当连接到该线路的电话处于摘机状态时，预定值被选择为高于电话线的尖端和环形端子上的线路电压。在本发明的另一实施例中，电压击穿装置连接到电子锁定装置的门控元件。

7. 再颁专利

USRE31643E Hold circuit for telephone system 失效
标题翻译：电话系统保持电路
公开(公告)号：USRE31643E
公开(公告)日：1984-08-07
申请号：US456257
申请日：1983-01-06
申请人： Herbert H. Waldman
发明人： Herbert H. Waldman
IPC分类号： H04M3/428 , H04M3/523
CPC分类号： H04M3/523 , H04M3/4283
摘要： A single master unit hold circuit which can be utilized for a single or a group of telephone instruments connected to a common telephone line. A single latching circuit is coupled to the telephone line. The establishment of the hold condition may be .[.affected.]. .Iadd.effected .Iaddend.in the off-hook state of the telephone instrument. Each of the telephones of the group has associated signaling capability. Each telephone can generate an actuating signal directly onto the telephone line, which is then detected by the latching circuit, and in response thereto a hold condition is placed on the telephone line. The hold condition is .[.affected.]. .Iadd.effected .Iaddend.via the telephone line, by a momentary actuation of a control circuit common to the hold circuit and the control circuit; the control circuit being a part of the telephone instrument call-out circuit network. The signaling can be accomplished by the rotary dial on a dial phone instrument or by the push button pad on an instrument sold under the trademark Touch-Tone, or by means of other types of frequency generating devices. The hold condition is initiated and established while the phone instrument is in its off-hook state. Moreover, the active telephone instrument continues to remain in its voice communication state, the hold condition having been established, not withstanding, as long as the telephone receiver is not placed on-hook. A key feature of the invention is that the off-hook state and/or voice transmission state of the telephone instrument constitutes the decisive conduit or channel by which the control circuit can activate the hold circuit. The hold circuit cannot readily become activated when the telephone receiver (handset) is in the on-hook state.

8. 发明授权

US4941166A Muting circuit for telephone answering machine 失效
标题翻译：电话应答机静音电路
公开(公告)号：US4941166A
公开(公告)日：1990-07-10
申请号：US140386
申请日：1988-01-04
申请人： Herbert H. Waldman , Kalman Drebin
发明人： Herbert H. Waldman , Kalman Drebin
IPC分类号： H04M1/68 , H04M1/70
CPC分类号： H04M1/70 , H04M1/68
摘要： A voltage breakdown circuit is connected in series between telephone answering machine circuitry and a telephone line. The voltage breakdown device becomes conductive only when the voltage across its terminals exceeds a predetermined level. If a telephone connected to the same telephone line as the answering machine circuitry is placed in the off hook condition, the voltage across the voltage breakdown device falls below the threshold level and the answering machine circuitry is effectively cut off from the telephone line. The voltage breakdown circuit is also useful in defeating automatic recording equipment placed in parallel with a telephone. Such automatic recording equipment is automatically disabled whenever the voltage across the tip in ring terminals of a telephone line is above a predetermined level. By placing the voltage breakdown circuit in series with a telephone which is to be protected from such taping, an automatic recording device connected in parallel with the telephone will automatically be disabled when the telephone is placed in the off hook condition.
摘要翻译：电压故障电路串联在电话应答机电路和电话线之间。只有当其端子两端的电压超过预定电平时，电压击穿器才会导通。如果连接到与应答机电路相同的电话线的电话处于摘机状态，则电压击穿装置两端的电压下降到阈值以下，并且应答机电路被有效地切断电话线。电压击穿电路也可用于击败与电话并联放置的自动记录设备。当电话线的环形终端中的尖端上的电压高于预定水平时，这种自动记录设备被自动禁用。通过将电压击穿电路与要被保护的电话串联在一起，当电话处于脱机状态时，将自动与电话并联连接的自动记录装置被禁用。

9. 发明授权

US4626630A Telephone call forwarding device 失效
标题翻译：电话转接设备
公开(公告)号：US4626630A
公开(公告)日：1986-12-02
申请号：US684021
申请日：1984-12-20
申请人： Herbert H. Waldman
发明人： Herbert H. Waldman
IPC分类号： H04M3/54
CPC分类号： H04M3/54
摘要： A telephone call forwarding device enables call forwarding instructions to be given over the telephone for which call forwarding service has been procured from a second telephone line connected to the device. A ring signal detector, in response to a preselected number of rings on the second phone line, causes the second phone line to be seized for a short cycle period in which an authorization signal can be received by the device. If an authorization signal is received during that period, a long cycle timer is activated which maintains seizure of the second phone line for a long cycle period. During that long cycle period, a repeat timer repetitively and alternatingly causes the procured service phone line to be seized for an interval in which call forwarding instructions can be relayed from the second phone line and to release the procured service phone line for an interval whose duration enables a new dial tone to be obtained on the procured service phone line at the beginning of the next interval for giving call forwarding instructions.
摘要翻译：电话呼叫转移装置使得能够通过已经从连接到该设备的第二电话线获取了呼叫转移服务的电话给予呼叫转移指令。环形信号检测器响应于第二电话线上的预选数量的响铃使得第二电话线被占用短周期，在该周期内可以由设备接收授权信号。如果在该期间内接收到授权信号，则激活长周期定时器，其在长周期期间维持第二电话线路的捕获。在该长周期期间，重复定时器重复地且交替地使得采购的服务电话线被占用一段间隔，其中呼叫转移指令可以从第二电话线路中继，并且释放采购的服务电话线路的持续时间使得在下一个间隔开始时在采购的服务电话线上获得新的拨号音，以提供呼叫转移指令。

10. 发明授权

US4540984A Energy saving control circuit for a light switch and a method therefor 失效
标题翻译：一种灯开关节能控制电路及其方法
公开(公告)号：US4540984A
公开(公告)日：1985-09-10
申请号：US439650
申请日：1982-11-05
申请人： Herbert H. Waldman
发明人： Herbert H. Waldman
IPC分类号： H05B37/02 , H05B39/08 , H04Q1/00 , H01H43/04
CPC分类号： H05B39/088 , H05B37/0227 , Y02B20/40 , Y10T307/878 , Y10T307/951
摘要： An energy saving light switch is disclosed. The light switch includes a human actuable switch and a control circuit responsive thereto. The control circuit operates a light in a first timed mode in which the light is turned on for a predetermined period of time responsive to an initial actuation of the switch and operates the light in a second untimed mode in which the light is turned on for an indefinite period of time responsive to the actuation of the switch during a predetermined time window forming part of the predetermined time period.
摘要翻译：公开了一种节能灯开关。光开关包括一个可人工致动的开关和一个响应于此的开关控制电路。控制电路以第一定时模式操作光，其中响应于开关的初始致动，光被接通预定的时间段，并且以第二未定型模式操作光，其中光被导通以用于在形成预定时间段的一部分的预定时间窗口期间响应于开关的致动而无限期的时间段。

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