Abstract:
Disclosed herein are systems and methods for allowing a transmitting facsimile device and a receiving facsimile device to select a preferable communications network or other preferred transmission parameters.
Abstract:
Preprocessing of picture signal communication is carried out on a control channel of a full-duplex modem. In transition of the picture signal communication to a primary channel of a half-duplex modem, when a called party confirms that 40 bits or more of all-'1' signals have been received from a calling party, a transmission carrier is stopped, and receiving of the all-one signals is restarted after the lapse of a predetermined time period. When the end of the all-'1' signals is confirmed, the picture signal communication is switched to the primary channel.
Abstract:
PURPOSE: A facsimile apparatus is provided to perform facsimile communication with a facsimile apparatus connected with a public network by using the existing facsimile element while performing facsimile communication with a facsimile apparatus connected with an IP network by using a voice-regarded facsimile element. CONSTITUTION: A network interface element(26) connects to an IP network through a LAN(Local Area Network) or a public line. A TCP(Transmission Control Protocol)/UDP(User Datagram Protocol)/IP(Internet Protocol) control element(25) is connected with the network interface element for controlling real-time transmission protocol. A voice coding/decoding element(21) codes and decodes voice signals. A facsimile modem(20) modulates and demodulates facsimile signals. A first T30 protocol control element(19A) controls T.30 protocol. A first communication image processing element(18A) performs image processing of communication image data. An image storing element(14) stores image data.
Abstract:
IP 프로토콜, TCP/UDP 프로토콜을 제어하는 TCP/UDP/IP 제어부, 리얼타임 전송 프로토콜을 제어하는 리얼타임 전송 제어부, 음성 신호의 부호화/복호화를 행하는 음성 부호화/복호화부, 팩시밀리 신호를 음성 신호로 간주하여 변조/복조를 행하는 모뎀, T.30 팩시밀리 프로토콜을 제어하는 T30 제어부, 통신 화상 데이터의 화상 처리를 행하는 통신 화상 처리부에 의해서, 간주 음성 방식의 팩시밀리 통신 수단을 형성하고, 네트워크 I/F를 통하여 LAN에 접속한 채로, 기존의 팩시밀리 장치와 IP망 경유로 리얼타임 팩시밀리 통신을 행한다. 팩시밀리 장치, 모뎀, 시스템 제어, 화상 축적
Abstract:
A method for T.38 gateway processing non-standard frames, wherein the T.38 gateway comprises at least a transmitting gateway and a receiving gateway, and the transmitting gateway connects to a transmitting facsimile, and the receiving gateway connects to a receiving facsimile, comprises that: a) the transmitting gateway and the receiving gateway judge the types of all of the received V.21 frame; b) when the receiving gateway or the transmitting gateway receives an NSF non-standard frame, modify the NSF non-standard frame, and proceed to transmit the modified non-standard frame. The method of the present invention modifies the facsimile process in which the facsimile rate is negotiated in private frame by the gateway to a process in which negotiation is implemented in standard frame, which ensures the rate parameter can be extracted by the gateway correctly, and the network facsimile can be processed normally.
Abstract:
Communication systems and methods are provided for selecting a channel for transmission of a facsimile utilizing a wireless communication network which has two different channel types available for wireless communications. In particular, systems and methods are provided which preferentially request one of the service types for a transmission of a facsimile but further provides for use of the alternate service type under conditions where a suitable channel is not available for the preferred facsimile support channel. More particularly, in one embodiment, when digital transmission services are not available, but analog services are available, facsimile transmission is provided over the analog channel rather than denying access to the wireless communication network for transmission of the facsimile.
Abstract:
The invention concerns a data transmission terminal which, through exchange means (110, 120), sets up a communication with a corresponding terminal through the switched telephone network (STN) with transmission from one to the other indicating its accessibility through the INTERNET network, and an access characteristic which can be an INTERNET address, a cryptographic key. The active state of the exchange means is sensed by means (111) activating the means (112) for reading the memory (113). The invention is particularly applicable to telefax.
Abstract:
A Protocol Fax Box (PFB) receives information, determines destinations for the information, and converts the information protocol and data, if necessary, for transmission to the destinations. The PFB has plural interfaces from which it receives and sends data. Upon receiving information on one of its interfaces, the PFB creates a set of objects for handling the transfer of the information from the incoming interface to an outgoing, or destination, interface. A source object handles the incoming communication, a session object handles destination determination, and a destination object handles protocol conversion from the source interface to the destination interface. The session object also logs information regarding each session. The PFB may use a client server model to download information as needed from a network, or have processing be performed on the network.
Abstract:
인터넷 팩스의 호 처리 장치 및 방법이 개시된다. 본 발명에 의한 인터넷 팩스의 호 처리 장치는, 복수의 호설정 방식들을 지원하여 호설정하는 호설정부, 지원되는 호설정 방식들에서 소정의 호설정 방식을 선택하여 호설정하도록 제어하는 제어부 및 선택된 호설정 방식에 의하여 수신처와 연결을 시도하는 연결부를 포함하고, 제어부는 시도된 결과에 따라 반복하여 다른 호설정 방식을 선택하는 것을 특징으로 한다. 본 발명에 의하면, 이렇게 함으로써 인터넷 팩스의 호환성을 높일 수 있어 인터넷 팩스 간에도 용이하게 통신을 할 수 있으며, 사용자에게 편리함을 제공하는 효과를 거둘 수 있다.