Data control cable for connecting a mobile device to a host device
A master device and mobile technology, applied in the direction of connection, conductive connection, electrical component connection, etc., can solve problems such as damage, the speed of receiving and processing data cannot keep up with the master device, and the mobile device 42 cannot be loaded, so as to prevent The effect of data overload
Inactive Publication Date: 2005-02-02
BENQ CORP
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Problems solved by technology
The RTS signal is also in the state of logic "1" in the entire data signal 46, but under high-speed data transmission, the speed of receiving and processing data by the mobile device 42 cannot keep up with the master device 30.
Because the control signal RTS cannot be used to inform the main device 30 about whether the mobile device 42 can receive data, this will cause the mobile device 42 to be unloaded or even damaged.
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[0029] see Figure 5 , Figure 5 It is a schematic diagram of connecting the main device 100 to the mobile device 130 of the present invention. For example, the main device 100 can be a computer, and the mobile device 130 can be a mobile phone. The host device 100 is connected to the mobile device 130 through a cable 120 . The cable 120 has a serial connector 122 that can be plugged into a corresponding serial port 112 on the host device 100 . The cable 120 also has an earphone connector 126 that can be plugged into a corresponding earphone hole 132 on the mobile device 130 . Unlike the conventional cable 36, the cable 120 of the present invention has a clock generator 124, the function of which will be described in detail later. Serial connector 122 is a typical RS-232 serial connector, although other serial connectors are also suitable within the scope of the present invention. The headphone connector 126 can only transmit two data signals between the main device 100 an...
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A data control cable connects to a mobile device and a host device for establishing data communication between the mobile device and the host device. The data control cable contains a first data input port for receiving a first data sent from the host device, a second data input port for receiving a second data sent from the mobile device, a first data output port for outputting the first data received from the host device to the mobile device, a second data output port for outputting the second data received from the mobile device to the host device, a clock generator for generating a data control signal used to control when the host device is capable of sending the first data, and a control output port for outputting the data control signal generated by the clock generator to the host device.
Description
technical field [0001] The invention provides a cable for connecting a mobile device and a host device, especially a cable for controlling the data transmission rate between a mobile device and a host device. Background technique [0002] Nowadays, mobile devices such as mobile phones have the packet switching technology of General Packet Radio Service (GPRS), so they can be connected to the network through host devices such as notebook computers. The method used to connect the mobile device to the host device is the same as the method used to connect a computer to a modem through a data bus interface. [0003] see figure 1 , figure 1 is a block diagram of a conventional master device 10 connected to a modem 14. The host device 10 and the modem 14 use data signals 16 , 18 and control signals 20 , 22 to exchange information with each other. The data signal 16 from the host device 10 is defined as transmitted data Tx (transmitted data), and the data signal 16 received by t...
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IPC IPC(8): H04N7/16
CPCH04N21/4143H04N7/16H04N21/43632H04N21/4126
Inventor 郑集明
Owner BENQ CORP