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1. 发明授权

US3991274A Telephone answering system with one responsive circuit for remote playback control 失效
标题翻译：电话应答系统具有一个响应电路，用于远程播放控制
公开(公告)号：US3991274A
公开(公告)日：1976-11-09
申请号：US562975
申请日：1975-03-28
申请人： James R. Darwood
发明人： James R. Darwood
IPC分类号： H04M1/65 , H04M1/652 , H04M1/656 , H04M1/64
CPC分类号： H04M1/652
摘要： A magnetic tape type of telephone answering system is provided which is capable of being operated from a remote point. A person may achieve remote control of the system by transmitting a tone of a predetermined frequency over the telephone line for a short time interval. In response to the tone, the telephone answering system automatically rewinds the message tape to its origin position, and then plays back all the accumulated messages recorded in the message tape and causes the recorded messages to be transitted to the calling party over the telephone line. The message tape is stopped after the transmission of the last message by the person sending the tone a second time over the telephone line, and the telephone answering system is thereby again set to its normal telephone answering operational mode.
摘要翻译：提供了能够从远程点操作的磁带式电话应答系统。一个人可以通过在短时间间隔内在电话线上发送预定频率的音调来实现对系统的远程控制。响应于该音调，电话应答系统将消息磁带自动倒回其原始位置，然后重放记录在消息磁带中的所有累积消息，并使记录的消息通过电话线路转接到主叫方。在通过电话线再次发送音调的人发送最后一个消息之后，消息磁带被停止，并且电话应答系统由此再次被设置为其正常的电话应答操作模式。

2. 发明授权

US3979560A Telephone answering system with ring detector 失效
标题翻译：带环形探测器的电话应答系统
公开(公告)号：US3979560A
公开(公告)日：1976-09-07
申请号：US556649
申请日：1975-03-10
申请人： James R. Darwood
发明人： James R. Darwood
IPC分类号： H04M1/654 , H04M11/10
CPC分类号： H04M1/654
摘要： A telephone answering system is provided which includes an automatic ring delay circuit which sets the system so that the first call received after the system has been turned on requires four rings, for example, to activate the system, and all subsequent calls require but two rings, for example. The telephone answering system also includes an oscillator circuit which is momentarily energized at the end of an announcement interval so as to generate a beep signal to the calling party to notify the calling party that the system is now in condition to record his message.
摘要翻译：提供了一种电话应答系统，其包括自动振铃延迟电路，其设置系统使得系统接通后接收的第一呼叫需要四个振铃，例如激活该系统，并且所有后续呼叫仅需要两个振铃，例如。电话应答系统还包括在通知间隔结束时瞬间通电的振荡器电路，以便向呼叫方产生一个蜂鸣信号，以通知呼叫方系统现在正在条件地记录他的消息。

3. 发明授权

US3959591A Telephone answering apparatus 失效
标题翻译：电话应答机
公开(公告)号：US3959591A
公开(公告)日：1976-05-25
申请号：US481966
申请日：1974-06-24
申请人： James R. Darwood
发明人： James R. Darwood
IPC分类号： H04M1/65 , H04M1/64 , G11B15/68 , G11B23/04
CPC分类号： H04M1/6515
摘要： A telephone answering apparatus is provided which is simple in its construction as compared with the usual prior art systems, but which is capable of performing all the operations performed by the prior art systems, and more. The apparatus of the invention includes electronic solid state circuitry, and it is simplified materially as compared with the usual prior art mechanisms. The embodiment to be described utilizes but two mechanical relays to perform all the switching operations. A multiple channel announcement tape deck is used with a simplified channel changing mechanism. A cassette-type tape is included to record the messages from the calling party for convenient message storage. The cassette is spring loaded so that it can be pulled back for a "fast forward" tape drive capability. The apparatus involves a simplified mechanical assembly as compared with the prior art units of the same general type in that, iner alia, a single drive motor is used for all the tape drive mechanisms, and an improved progressive inter-lock system is used to assure that only one tape drive mechanism will be activated at any one time.
摘要翻译：提供了一种电话应答设备，其结构简单，与通常的现有技术系统相比，但是能够执行现有技术系统执行的所有操作等。本发明的装置包括电子固态电路，与通常的现有技术机构相比，其被简化了。要描述的实施例利用两个机械继电器来执行所有的开关操作。多通道通道磁带机使用简化的频道切换机制。包括盒式磁带，用于记录来自呼叫方的消息，以方便消息存储。磁带盒是弹簧加载的，因此可以将其拉回以实现“快进”磁带机的功能。该装置涉及与相同通用类型的现有技术单元相比的简化的机械组件，其中特别地，单个驱动马达用于所有带驱动机构，并且改进的逐步锁相系统用于确保任何一个时间只能激活一个磁带机构。

4. 再颁专利

USRE29733E Telephone answering apparatus 失效
标题翻译：电话应答机
公开(公告)号：USRE29733E
公开(公告)日：1978-08-15
申请号：US765546
申请日：1977-02-04
申请人： James R. Darwood
发明人： James R. Darwood
IPC分类号： G11B15/44 , G11B25/06
CPC分类号： G11B25/06 , G11B15/44
摘要： Telephone answering apparatus is provided which is simple in its construction as compared with the usual prior art apparatus, but which is capable of performing all of the operations performed by the more complex prior art apparatus, and also of performing operations beyond the capabilities of the usual prior art apparatus. The apparatus of the invention utilizes a cassette-type tape unit on which announcement messages may be recorded, for transmission to a calling party during an initial time interval (T.sub.1). The apparatus also includes a cassette-type tape unit to record the messages from the calling party during a subsequent message recording interval (T.sub.2). In the apparatus, a single irreversible drive motor is used for both the announcement and message tape units, and a simple mechanical drive is provided for the message tape unit for driving the message tape unit in one direction during a fast forward operation, and for driving the message tape unit in the opposite direction during a rewind operation, without the need for reversing the direction of rotation of the drive motor.

5. 发明授权

US3968329A Telephone answering apparatus 失效
标题翻译：电话应答机
公开(公告)号：US3968329A
公开(公告)日：1976-07-06
申请号：US548413
申请日：1975-02-10
申请人： James R. Darwood
发明人： James R. Darwood
IPC分类号： G11B15/44 , G11B25/06 , G11B15/68 , G11B5/54
CPC分类号： G11B25/06 , G11B15/44
摘要： Telephone answering apparatus is provided which is simple in its construction as compared with the usual prior art apparatus, but which is capable of performing all of the operations performed by the more complex prior art apparatus, and also of performing operations beyond the capabilities of the usual prior art apparatus. The apparatus of the invention utilizes a cassette-type tape unit on which announcement messages may be recorded, for transmission to a calling party during an initial time interval (T.sub.1). The apparatus also includes a cassette-type tape unit to record the messages from the calling party during a subsequent message recording interval (T.sub.2). In the apparatus, a single irreversible drive motor is used for both the announcement and message tape units, and a simple mechanical drive is provided for the message tape unit for driving the message tape unit in one direction during a fast forward operation, and for driving the message tape unit in the opposite direction during a rewind operation, without the need for reversing the direction of rotation of the drive motor.
摘要翻译：提供了与通常的现有技术装置相比其结构简单但能够执行由更复杂的现有技术装置执行的所有操作的电话应答装置，并且还执行超出常规的能力的操作现有技术装置。本发明的装置利用可以在其上记录通告消息的盒式磁带单元，用于在初始时间间隔（T1）期间传送给主叫方。该装置还包括盒式磁带单元，用于在随后的消息记录间隔（T2）期间记录来自主叫方的消息。在该装置中，单个不可逆驱动电动机用于通知和消息带单元，并且为快速向前操作期间向消息带单元提供用于在一个方向上驱动消息带单元的简单机械驱动，并用于驱动消息带单元在倒带操作期间处于相反方向，而不需要反转驱动电机的旋转方向。

6. 发明授权

US4066848A Telephone ring detector circuit 失效
标题翻译：电话环检测电路
公开(公告)号：US4066848A
公开(公告)日：1978-01-03
申请号：US720682
申请日：1976-09-07
申请人： James R. Darwood
发明人： James R. Darwood
IPC分类号： H04M1/64 , H04M1/654 , H04M1/00
CPC分类号： H04M1/654
摘要： A telephone ring detector circuit is provided which finds particular utility in telephone answering systems. The detector circuit responds only to ring signals on the telephone line to activate the system, and it is unresponsive to dialing pulses, or other signals, that may be present on the telephone line. The detector circuit of the invention distinguishes the ring signals from the other signals on the telephone line by counting the number of pulses present on the telephone line for the various signals and providing a ring detect output only when the number of pulses is in excess, for example, of the pulses which form the trains of the dialing signal.
摘要翻译：提供了一种电话铃声检测器电路，其在电话应答系统中具有特定的用途。检测器电路仅响应电话线上的振铃信号以激活系统，并且对于可能存在于电话线路上的拨号脉冲或其他信号无响应。本发明的检测器电路通过对各种信号的电话线上存在的脉冲数进行计数来区分振铃信号与电话线上的其它信号，并且仅当脉冲数量过多时提供振铃检测输出，对于例如，形成拨号信号列的脉冲。

7. 发明授权

US4005270A Remote control for operating a telephone answering system from a remote point over the telephone line 失效
标题翻译：远程控制，用于通过电话线从远程点操作电话应答系统
公开(公告)号：US4005270A
公开(公告)日：1977-01-25
申请号：US581842
申请日：1975-05-29
申请人： James R. Darwood
发明人： James R. Darwood
IPC分类号： H04M1/64 , H04M1/652 , H04M1/656
CPC分类号： H04M1/652
摘要： A solid state telephone answering system is provided which includes replaceable magnetic tape cassettes, one of which contains a recorded announcement to be sent to the calling party when the system first answers the telephone, and a second of which serves to record the message from the calling party. A person may achieve remote control of the system by transmitting a tone of a predetermined frequency over the telephone line for a short time interval. In response to such a tone, the telephone answering system conditions itself to permit the caller to record a new announcement on a loop magnetic tape in the announcement cassette.
摘要翻译：提供了一种固态电话应答系统，其包括可替换的磁带盒，其中一个包含当系统首先应答电话时要发送到主叫方的记录通知，其中一个用于从呼叫记录消息派对。一个人可以通过在短时间间隔内在电话线上发送预定频率的音调来实现对系统的远程控制。响应于这样的音调，电话应答系统使其自身能够允许呼叫者在公告盒中的环形磁带上记录新的通知。

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