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    • 1. 发明授权
    • Secure fax adapter method and apparatus
    • 安全传真适配器方法和设备
    • US6008909A
    • 1999-12-28
    • US56896
    • 1998-04-06
    • James S. Hui
    • James S. Hui
    • H04N1/00H04N1/327
    • H04N1/00302H04N1/00127H04N1/327H04N1/32704H04N1/32713H04N1/32728H04N1/32741H04N1/32797H04N1/00204H04N1/00281H04N2201/0034H04N2201/0049
    • An secured fax adapter apparatus uses a relay circuit to selectively couple a G3 fax to a secured line via a secured telephone unit (STU). The G3 fax can alternatively be coupled to a public switched telephone network (PSTN) via a PSTN port. The secured fax adapter has an enhanced DAA having a controller, a fax communication circuit, a current limited off hook detection circuit, a relay circuit for selectively coupling the external device ports, and a ring generation circuit for producing a square wave for ring generation. In one embodiment, the current-limited off-hook detection circuit uses a symmetrical network of transistors coupled to diodes to limit the current drawn by a load. In another embodiment, the relay circuit has four relays for selectively coupling the G3 fax to the fax communication circuit, the STU to the PSTN, the G3 fax to the PSTN, or the STU to the fax communication circuit. The relay circuit has an additional relay for coupling the off-hook detection circuit to the fax communication circuit.
    • 安全传真适配器装置使用中继电路,经由安全电话单元(STU)选择性地将G3传真机耦合到安全线路。 G3传真机可以通过PSTN端口耦合到公共交换电话网络(PSTN)。 安全传真适配器具有增强的DAA,其具有控制器,传真通信电路,限流摘机检测电路,用于选择性地耦合外部设备端口的继电器电路,以及用于产生环形产生方波的环形电路。 在一个实施例中,电流限制的摘机检测电路使用耦合到二极管的晶体管的对称网络来限制由负载引起的电流。 在另一个实施例中,继电器电路具有四个继电器,用于将G3传真选择性地耦合到传真通信电路,STU到PSTN,G3传真到PSTN或STU到传真通信电路。 继电器电路具有用于将摘机检测电路耦合到传真通信电路的附加继电器。
    • 3. 发明授权
    • Telephone set capable of initiating facsimile communication without
distinctive ringing upon reception of facsimile call signal
    • 电话机能够在接收到传真呼叫信号时启动传真通信而没有特殊振铃
    • US5901218A
    • 1999-05-04
    • US843662
    • 1997-04-09
    • Tokunori Kato
    • Tokunori Kato
    • H04N1/327H04M3/02
    • H04N1/32708H04N1/32704H04N1/32717H04N1/32719H04N1/32736H04N1/32741
    • A telephone set incorporated in a facsimile system using two or more telephone numbers called by respective call signals having different patterns, which are stored in a pattern data memory when the call signals are received and detected in a registering mode and with which the pattern of a call signal received when the telephone set is not in the registering mode is compared to determine the telephone number being called. The registering mode is established by an operator-controlled mode setting device. The patterns of the call signals are detected by a pattern detector in the registering mode, and the detected patterns are registered in the pattern data memory, so that the telephone number called by each call signal is determined by a pattern determining device as a result of comparison of the pattern of each call signal with the registered patterns in the pattern data memory. A selective call signal processing device is operated upon reception of a facsimile call signal in a distinctive ringing ON mode also established by the data input device, so that facsimile communication is initiated without distinctive ringing based on the facsimile call signal.
    • 一种使用由具有不同图案的相应呼叫信号调用的两个或多个电话号码组合在一起的电话机,当登记模式接收和检测呼叫信号时,电话机被存储在模式数据存储器中, 当电话机未处于注册模式时接收到的呼叫信号进行比较,以确定所呼叫的电话号码。 注册模式由操作者控制模式设定装置建立。 呼叫信号的模式在注册模式下由模式检测器检测,并且检测到的模式被登记在模式数据存储器中,使得由每个呼叫信号调用的电话号码由模式确定装置作为结果确定 将每个呼叫信号的模式与模式数据存储器中的注册模式进行比较。 选择呼叫信号处理装置在接收到由数据输入装置也建立的区别振铃导通模式下的传真呼叫信号时进行操作,从而基于传真呼叫信号启动传真通信而没有特定振铃。
    • 7. 发明授权
    • Apparatus for communication by telephone set and facsimile set through
order wires
    • 用于通过电话机和传真机通过订单电线进行通信的装置
    • US5323449A
    • 1994-06-21
    • US749208
    • 1991-08-23
    • Masahiko MoriTadaharu Kato
    • Masahiko MoriTadaharu Kato
    • H04M11/06H04N1/327H04M11/00
    • H04N1/32708H04M11/06H04N1/32704H04N1/3273H04N1/32741
    • Apparatus for use in receiving input signals through order wires; at least one of the input signals is a specific signal including an input control signal indicative of supply of the specific signal to either a telephone set (6) or a facsimile set (15). A processing circuit processes (2) the input signals into an input single signal; an input detecting circuit (3) detects the input control signal in the input single signal; a judging circuit (14) judges whether the input control signal indicates supply of the input single signal to the telephone set, or to the facsimile set and produces an input connection signal; and a connection unit (20) connects the processing circuit to the telephone set and to the facsimile set when the input connection signal indicates the telephone set and the facsimile set, respectively. It is also possible to use the apparatus to transmit output signals produced by the telephone set and the facsimile set through the order wires.
    • 用于通过订单线接收输入信号的装置; 输入信号中的至少一个是包括指示向电话机(6)或传真机(15)提供特定信号的输入控制信号的特定信号。 处理电路处理(2)输入信号为输入单信号; 输入检测电路(3)检测输入单信号中的输入控制信号; 判断电路(14)判断输入控制信号是否指示输入单个信号到电话机或传真机的输出,并产生输入连接信号; 并且当输入连接信号分别指示电话机和传真机时,连接单元(20)将处理电路连接到电话机和传真机。 还可以使用该装置通过订单线传输由电话机和传真机产生的输出信号。
    • 8. 发明授权
    • Communication apparatus capable of data communication and speech
communication
    • 能够进行数据通信和语音通信的通信装置
    • US5280519A
    • 1994-01-18
    • US821195
    • 1992-01-16
    • Masato NakajimaOsamu Suzuki
    • Masato NakajimaOsamu Suzuki
    • H04M11/00H04N1/32H04N1/327
    • H04N1/32708H04N1/32704H04N1/32719H04N1/32728H04N1/32732H04N1/32741H04N1/32743
    • A communication apparatus which can carry out a facsimile communication with a calling station and a speech communication with the calling station. The communication apparatus includes, a monitoring block for monitoring received signals, a first determining block for determining, based on a result obtained by the monitoring block, whether or not a first signal transmitted from the calling station is received, a transmission block for transmitting a second signal to the calling station, a first control block for activating the transmission block in a case where the first determining block determines that the first signal is not received within a first time after the communication apparatus becomes capable of communicating to the calling station, a ringing unit for outputting a ringing tone, a second control block for activating the ringing unit when a second time elapses from a time at which the transmission block starts to transmit the second signal, and a third control block for performing the facsimile communication when the first determining block determines that the first signal is received.
    • 一种能够与呼叫站进行传真通信和与呼叫站的语音通信的通信装置。 通信装置包括:用于监视接收到的信号的监视块;第一确定块,用于基于由监视块获得的结果,确定是否接收到从主叫站发送的第一信号;发送块,用于发送 第二信号到主叫站,第一控制块,用于在第一确定块在通信装置能够通信到呼叫站之后的第一时间内确定第一信号未被接收的情况下激活传输块; 振铃单元,用于输出振铃音;第二控制块,用于当从发送块开始发送第二信号的时间起经过第二时间时激活振铃单元;以及第三控制块,用于当第一个 确定块确定接收到第一信号。