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51. 发明授权

US4158755A Telephone system open switching interval protection circuit 失效
标题翻译：电话系统开关间隔保护电路
公开(公告)号：US4158755A
公开(公告)日：1979-06-19
申请号：US924695
申请日：1978-07-14
申请人： Phillip P. Daniele
发明人： Phillip P. Daniele
IPC分类号： H04M9/00 , H04Q5/18
CPC分类号： H04M9/006
摘要： A circuit which can be appliqued to external terminals of a prior art key telephone line circuit to protect the circuit from prematurely cancelling a customer-applied holding condition when the central office exhibits an open switching interval (OSI) condition is described. The appliqued circuit monitors a contact of the key system hold relay, and when that relay is released by the appearance of an OSI condition, temporarily reconnects the winding of the hold relay across the line so that the hold relay can respond to the reappearance of central office line current if it appears after a normal OSI interval and which disconnects the hold relay if line current does not appear as during a permanent signal condition.
摘要翻译：描述了当中心局呈现开放的切换间隔（OSI）条件时，可以将现有技术的关键电话线路电路的外部终端贴到电路上以保护电路免于过早消除顾客应用的保持状况的电路。贴片电路监控关键系统保持继电器的触点，当该继电器出现OSI状况时，暂时重新连接保持继电器的绕组，使保持继电器能够响应中央再现办公室线路电流，如果在正常的OSI间隔之后出现，并且如果线路电流在永久信号条件下没有出现则断开保持继电器。

52. 发明授权

US3973085A Key telephone system with directly associated station cards and sets 失效
标题翻译：主要电话系统，具有直接相关的站卡和套
公开(公告)号：US3973085A
公开(公告)日：1976-08-03
申请号：US509398
申请日：1974-09-26
申请人： Milo B. Shiff
发明人： Milo B. Shiff
IPC分类号： H04M9/00 , H04Q5/18
CPC分类号： H04M9/007
摘要： A telephone system comprises a plurality of station sets, each including a plurality of key buttons, and the system includesA. a station circuit for at least one of the station sets, said station circuit including interface means for transferring data to and receiving data from its associated station set, said interface means including between 2 and 3 pairs of wires connected with the station set, one pair of which is a talk pair, and the remainder of which is or are for power transmission and for transmission of data related to line, status and audible signalling and for control information including switch status, andB. a line circuit for at least one line, each line circuit including means for transmitting control, status and talk information to, and receiving control, status and talk information from, at least one station circuit connected therewith.
摘要翻译：电话系统包括多个站组，每个站组包括多个键按钮，并且系统包括A.用于至少一个站台的站台电路，包括用于传送数据和接收数据的接口装置的固定电路其相关站点，具有接口的两个和三对线之间的界面手段，包括与站台相连的一对对方，以及用于功率传输和传输与线路有关的数据的剩余部分，状态和可信信号和包括开关状态的控制信息，以及B.用于至少一条线路的线路电路，每条线路电路，包括用于发送控制，状态和信息信息以及接收控制，状态和信息信息的手段，至少连接一台电路。

53. 发明授权

US07522618B2 Communication apparatus, communication system and communication method 有权
标题翻译：通讯设备，通讯系统及通讯方式
公开(公告)号：US07522618B2
公开(公告)日：2009-04-21
申请号：US11377523
申请日：2006-03-17
申请人： Moe Hamamoto , Takeshi Kokado
发明人： Moe Hamamoto , Takeshi Kokado
IPC分类号： H04Q3/47 , H04Q3/76 , H04Q5/18
CPC分类号： H04L29/12009 , H04L29/12367 , H04L29/12377 , H04L29/12528 , H04L61/2514 , H04L61/2517 , H04L61/2575
摘要： The NAT type of a router can be examined by communicating with one server having one IP address, and a P2P communication path is established efficiently using the NAT type obtained by the examination. A terminal 100 transmits a plurality of port number examination request packets having a plurality of port numbers of a server 001 set as the destination port. The terminal 100 refers to a port number examination response packet received from the server 001 to acquire a plurality of port numbers obtained by address translation by a router 101 for the port number examination request packets respectively. The terminal 100 determines the NAT type of the router 101 based on the acquired translated port numbers. The terminals 100 and 200 establish a P2P communication path efficiently using the determined NAT type.
摘要翻译：可以通过与具有一个IP地址的一个服务器通信来检查路由器的NAT类型，并且使用通过检查获得的NAT类型有效地建立P2P通信路径。终端100发送具有设定为目的地端口的服务器001的多个端口号的多个端口号码检查请求包。终端100是指从服务器001接收到的端口号检查响应包，分别通过路由器101获取通过地址转换而获得的多个端口号，用于端口号检查请求包。终端100基于所获取的翻译的端口号来确定路由器101的NAT类型。终端100和200使用确定的NAT类型有效地建立P2P通信路径。

54. 发明授权

US4572928A Key telephone system 失效
标题翻译：关键电话系统
公开(公告)号：US4572928A
公开(公告)日：1986-02-25
申请号：US550236
申请日：1983-11-08
申请人： Tomio Nishimura , Junzo Kikuchi , Ryuzo Sugiura , Toshiro Yoshida
发明人： Tomio Nishimura , Junzo Kikuchi , Ryuzo Sugiura , Toshiro Yoshida
IPC分类号： H04M9/00 , H04Q5/18
CPC分类号： H04M9/005
摘要： In a key telephone system with a plurality of four-wire key telephone sets wherein a two-wire telephone set is connected to a main control device via a pair of speech lines so that intercom speech and office line speech are possible between the two-wire telephone set and other key telephone sets, the improvement wherein said main control device comprises a call signal generating circuit, first transfer switching means for transfer-connecting said speech lines between a pair of office speech lines and a pair of intercom speech lines, second transfer switching means for transfer-connecting said speech lines between said call signal generating circuit and said first transfer switching means, DC loop supervisory means for supervising a DC loop of said speech lines, and a control circuit inputted with an output of said DC loop supervisory means for controlling said first and second transfer switching means in accordance with the states of said office lines. Under a normal state the speech lines are connected to the intercom speech lines through the first and second transfer switching means. At the time of arrival of an office line call signal the second transfer switching means is switched to send the call signal to the speech lines. Thereafter the second transfer switching means is reset and the first transfer switching means is switched to the office line speech lines in accordance with the output of the loop supervisory means.
摘要翻译：在具有多个四线密钥电话机的密钥电话系统中，其中两线电话机经由一对语音线路连接到主控制装置，使得双线电话机之间可以进行对讲语音和办公线路语音电话机和其他关键电话机，其中所述主控装置包括呼叫信号发生电路，第一传送切换装置，用于在一对办公语音线和一对对讲话音线之间传送连接所述语音线，第二传送用于在所述呼叫信号发生电路和所述第一传送切换装置之间传送连接所述语音线路的切换装置，用于监视所述语音线路的DC环路的DC环路监控装置，以及输入所述DC循环监视装置的输出的控制电路用于根据所述办公用线的状态来控制所述第一和第二传送切换装置。在正常状态下，语音线路通过第一和第二传送切换装置连接到对讲语音线路。在办公室呼叫信号到达时，切换第二传送切换装置以将呼叫信号发送到语音线路。此后，第二传送切换装置被复位，并且第一传送切换装置根据环路监控装置的输出被切换到办公室线路语音线路。

55. 发明授权

US4491693A Key telephone system and method of setting operating data in the key telephone system 失效
标题翻译：关键电话系统和密钥电话系统中操作数据的设置方法
公开(公告)号：US4491693A
公开(公告)日：1985-01-01
申请号：US444529
申请日：1982-11-26
申请人： Yoshikazu Sano , Hideyasu Mori , Yasuji Sato
发明人： Yoshikazu Sano , Hideyasu Mori , Yasuji Sato
IPC分类号： H04Q3/58 , H04M9/00 , H04Q5/18
CPC分类号： H04M9/007
摘要： This system is a key telephone system of a type setting operating data for controlling the operations of respective key telephone sets and the entire system by using the keys of the key telephone sets. This key telephone system has a plurality of key telephone sets and a main unit, and the main unit has first and second memories for storing the operating data. The main unit takes the first mode for operating the system in accordance with the operating data of the first memory and the second mode for setting the operating data. The second memory stores the reference operating data and transfers the data into the first memory as required.
摘要翻译：该系统是用于通过使用密钥电话机的密钥来控制各个密钥电话机和整个系统的操作的类型设置操作数据的关键电话系统。该密钥电话系统具有多个密钥电话机和主单元，主单元具有用于存储操作数据的第一和第二存储器。主单元根据第一存储器的操作数据和用于设置操作数据的第二模式，进行操作系统的第一模式。第二存储器存储参考操作数据，并根据需要将数据传送到第一存储器。

56. 发明授权

US4351987A Telephone line circuit hold arrangement 失效
标题翻译：电话线电路保持装置
公开(公告)号：US4351987A
公开(公告)日：1982-09-28
申请号：US249372
申请日：1981-03-31
申请人： Thomas E. Feil
发明人： Thomas E. Feil
IPC分类号： H04M1/80 , H04M3/428 , H04Q5/18
CPC分类号： H04M1/80 , H04M3/4283
摘要： There is disclosed an improved hold circuit arrangement for controlling the hold function in a key telephone line circuit without introducing an undesired series impedance in the longitudinal path of the telephone line during any of the line circuit's normal operating states. The improved circuit arrangement employs a combination of an opto-coupled energizing circuit for detecting and responding to the presence of d.c. current on the telephone line during the hold state and two miniature relays which operate to establish a condition of electrical isolation between the opto-coupled energizing circuit and the longitudinal path of the telephone line in all operating states except during the momentary transition from the line busy to the line hold state. In another embodiment of this invention, logic circuitry is associated with the opto-coupled energizing circuit to provide lamp control indicative of the line state. The invention reduces the overall cost and profile of the line circuit while providing a means for eliminating a common cause of longitudinal imbalance during the hold state characteristic of conventional line circuit technology.
摘要翻译：公开了一种改进的保持电路装置，用于在任何线路电路的正常操作状态期间，在电话线的纵向路径中不引入不期望的串联阻抗，来控制密钥电话线路电路中的保持功能。改进的电路布置采用光耦合激励电路的组合，用于检测和响应直流的存在。在保持状态期间在电话线上的电流和两个微型继电器，其操作以在所有操作状态下在光耦合通电电路和电话线的纵向路径之间建立电隔离状态，除了在从线路忙时到线保持状态。在本发明的另一实施例中，逻辑电路与光耦合激励电路相关联，以提供指示线路状态的灯控制。本发明降低了线路电路的整体成本和轮廓，同时提供了在常规线路电路技术的保持状态特性期间消除纵向不平衡的共同原因的装置。

57. 发明授权

US4334126A Control circuit for concurrently monitoring and controlling functions and frequency modulating status information in a digital data network 失效
标题翻译：用于同时监视和控制数字数据网络中的功能和调频状态信息的控制电路
公开(公告)号：US4334126A
公开(公告)日：1982-06-08
申请号：US120570
申请日：1980-02-11
申请人： Barry Slingsby
发明人： Barry Slingsby
IPC分类号： H04Q3/58 , H04M9/00 , H04Q11/04 , H04Q5/18
CPC分类号： H04M9/008 , H04Q11/04
摘要： A remote unit contains function circuits to be controlled in response to control data from a central location and function circuits to generate information for transfer to the central location. The control data is transferred between the remote unit and the central location as frequency-shift-keyed signals. In the remote unit, a programmed microcomputer contains three blocks of instructions for enabling the microcomputer to perform background operations, to respond to the initial receipt of a message, and to thereafter transmit and decode the message. Further, in response to the decoding block of instructions, that are provided on a fixed time basis, the microcomputer is able to transmit frequency-shift-keyed signals without the need for a separate frequency-shift-keyed transmitter.Table of ContentsCross References to Related Patent ApplicationsBackground of the InventionSummaryBrief Description of the DrawingsDescription of an Illustrative EmbodimentA. General DescriptionB. Specific Description1. Multifunction Telephone Structurea. Voice Signal Path and Telephone Receiver and Transmitter 52b. Power Supply 57 and Local Power Option 60c. Phase Loop Receiver and Transmit Driver 54d. Audio Amplifier 61 and Speaker 62e. Hook Switch Circuitf. Tone Ringer 63 and Transducer 642. Common Equipmenta. Control Circuit 47b. Line Card 413. Operationa. Microport Control Unit 40 to Line Card 41b. Line Card 41 to Multifunction Telephone 16Ac. Multifunction Telephoned. Multifunction Telephone 16A to Line Card 414. Detailed Operation of the Multifunction Telephonea. Background Stateb. External Event Statec. Timer Interrupt StateC. Summary of the Description
摘要翻译：远程单元包含响应于来自中央位置的控制数据而被控制的功能电路和功能电路以产生用于传送到中央位置的信息。控制数据在远程单元和中心位置之间传输，作为频移键控信号。在远程单元中，编程的微型计算机包含三个指令块，用于使微型计算机执行后台操作，以响应初始接收到的消息，然后发送和解码消息。此外，响应于在固定时间基础上提供的指令解码块，微型计算机能够发送频移键控信号，而不需要单独的频移键控发送器。

58. 发明授权

US4315110A Multiple line telephone instrument 失效
标题翻译：多线电话乐器
公开(公告)号：US4315110A
公开(公告)日：1982-02-09
申请号：US144780
申请日：1980-04-28
申请人： James M. Davis
发明人： James M. Davis
IPC分类号： H04Q3/58 , H04M9/00 , H04Q5/18
CPC分类号： H04M9/007
摘要： The present invention is directed to a multiple line telephone instrument operative over a pair of data conductors and a pair of speech conductors using time division principles. The data pair transmits line condition signaling and control using an asynchronous sixteen bit binary code while the speech and dialing information is sent over the speech pair of conductors in standard analog format for translation to PCM code within the system (not shown herein). Line condition signaling between an instrument and its group logic circuit or group processor is in parallel over the data pair. Incoming line condition signaling information is used to generate an audible signal and to illuminate a selected lamp representing the desired line. Outgoing line condition signaling is encoded in diphase code using a square wave of a second frequency to represent a binary zero. The outgoing encoding ensures that only one or the other binary signal is sent and to ensure that the signals are sent in diphase mode.
摘要翻译：本发明涉及一种使用时分原理在一对数据导体和一对语音导体上操作的多线电话设备。数据对使用异步十六位二进制码传输线路状态信令和控制，同时语音和拨号信息以标准模拟格式在导体的语音对上发送，以转换为系统内的PCM码（本文未显示）。仪器与其组逻辑电路或组处理器之间的线路状态信号在数据对上并行。来电线路状态信号信息用于产生可听信号并照亮所选择的指示所需线路的灯。输出线路状态信令用双向码编码，使用第二频率的方波来表示二进制零。输出编码确保仅发送一个或另一个二进制信号，并确保信号以双相模式发送。

59. 发明授权

US4220827A Telephone signaling circuit 失效
标题翻译：电话信令电路
公开(公告)号：US4220827A
公开(公告)日：1980-09-02
申请号：US13566
申请日：1979-02-21
申请人： Edmund T. Burke , David F. Jones
发明人： Edmund T. Burke , David F. Jones
IPC分类号： H04M9/00 , H04Q5/18
CPC分类号： H04M9/002
摘要： A telephone signaling interface (I1) enables compatible communications between a modified telephone station set (S1) and a key telephone system (KTS1). Separate alternating voltage control signals from the key telephone system (KTS1) are amplitude and polarity modulated and combined by the interface (I1) to provide ringing, switchhook supervision and visual signaling to station set (S1) over a single signaling wire pair (C1). Current flow on the signaling pair (C1) in one direction provides visual signaling while distinguishable amounts of current flow in the opposite direction provide the supervision and ringing signals. Interruption of the supervision current is converted by interface (I1) into an A lead supervision signal for the key telephone system (KTS1). Voice communication between the modified station set (S1) and the key telephone system (KTS1) occurs over a separate voice communication pair (V1).
摘要翻译：电话信令接口（I1）使得能够在修改的电话机组（S1）和密钥电话系统（KTS1）之间进行兼容的通信。来自关键电话系统（KTS1）的单独的交流电压控制信号通过接口（I1）进行幅度和极性调制和组合，通过单个信号线对（C1）向站组（S1）提供振铃，切换监视和视觉信号，。信号对（C1）上的一个方向上的电流流动提供视觉信号，而在相反方向上的可分辨电流量提供监视和振铃信号。监控电流的中断由接口（I1）转换为关键电话系统（KTS1）的A引导监控信号。修改站组（S1）和密钥电话系统（KTS1）之间的语音通信发生在单独的语音通信对（V1）上。

60. 发明授权

US4194093A Key system protective apparatus 失效
标题翻译：钥匙系统保护装置
公开(公告)号：US4194093A
公开(公告)日：1980-03-18
申请号：US964620
申请日：1978-11-29
申请人： Orland L. Davis, Jr. , Charles E. Moore, Jr.
发明人： Orland L. Davis, Jr. , Charles E. Moore, Jr.
IPC分类号： H04M9/00 , H04M1/00 , H04Q5/18
CPC分类号： H04M9/006
摘要： A circuit for apparatus to be used with a key system line card for providing electrical isolation between the line circuit and the central office. The adapter responds to ring current from the central office to close a path to the line circuit to cause the line circuit to respond. The circuit provides two-way supervision responding to change of conditions either at the station or at the central office, and also provides a time delay to prevent the circuit from entering the hold condition improperly.
摘要翻译：一种用于与线路电路和中心局之间提供电隔离的钥匙系统线卡使用的装置的电路。适配器响应来自中心局的环形电流，以闭合线路电路的路径，使线路电路响应。该电路提供对车站或中心局条件变化的双向监控，并且还提供时间延迟以防止电路进入保持状态不正确。

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