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GPS receiving device and its signal transmission method

A technology of signal transmission and reception device, applied in the field of GPS reception device and its signal transmission, can solve problems such as data transmission errors

Inactive Publication Date: 2007-06-13
TRANSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the time when the signal receiving unit 110 actually transmits the data Sd may partly fall in the second half of the power-saving mode cycle, thus causing data transmission errors

Method used

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  • GPS receiving device and its signal transmission method
  • GPS receiving device and its signal transmission method
  • GPS receiving device and its signal transmission method

Examples

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Effect test

no. 1 example

[0022] Please refer to FIG. 4 , which is a timing diagram of the operation mode switching operation of the wireless transmission interface 220 according to the first example of the present invention. Generally, the GPS data signal Sd is transmitted at a fixed cycle, for example, output once a second as mentioned above. FIG. 4 takes a period of a certain second for transmitting the data signal Sd as an example. As shown in FIG. 4 , before the signal receiving unit 210 transmits the GPS data signal Sd, the working mode switching signal Sw has a first level L1 , such as a low level, and the wireless transmission interface 220 is in the power saving mode at this time. And when the signal receiving unit 210 intends to transmit the GPS data signal Sd, the signal receiving unit 210 will first use the working mode switching signal Sw to switch from the first level L1 to the second level L2 (for example, a high level), that is The wireless transmission interface 220 is controlled to e...

no. 2 example

[0025]Please refer to FIG. 5 , which shows a timing diagram of the operation mode switching operation of the wireless transmission interface 220 according to the second example of the present invention. FIG. 5 also takes a period of a certain second for transmitting the data signal Sd as an example. As shown in FIG. 5 , before the signal receiving unit 210 transmits the GPS data signal Sd, the working mode switching signal Sw has a first level L1, such as a low level, and the wireless transmission interface 220 is in the power saving mode at this time. And when the signal receiving unit 210 intends to transmit the GPS data signal Sd, the signal receiving unit 210 will first use the working mode switching signal Sw to switch from the first level L1 to the second level L2 (for example, a high level), that is The rising clock edge is used to control the wireless transmission interface 220 to enter the continuous working mode, and when the wireless transmission interface 220 is in...

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Abstract

The invention relates to a GPS receiving device wireless communication device that includes signal receiving unit and wireless transferring interface. The signal receiving unit is used to receive and output GPS data signal. The wireless transferring interface connects to signal receiving unit and transfers GPS data to wireless communication device. Before wireless communication device connecting to GPS receiving device, the signal receiving unit is in energy saving mode. After signal receiving unit controlling control wireless transferring interface beginning continuously working mode, GPS data would be output..

Description

technical field [0001] The present invention relates to a GPS receiving device and its signal transmission method, and in particular to a GPS receiving device and its signal transmission method which wake up the wireless transmission interface to enter a continuous working mode when GPS data is to be transmitted. Background technique [0002] In recent years, due to the increasing demand for short-distance wireless communication applications, wireless Internet will be an important trend in the future. For example, the Bluetooth technology among them is a brand-new network architecture, which belongs to a small-scale radio communication network. It is not restricted by any direction and can penetrate obstacles for one-to-many short-distance transmission. At present, the most potential application is the combination with a Global Position System (GPS) receiver, such as a Bluetooth GPS receiver, and then cooperate with various corresponding wireless communication devices to tra...

Claims

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Application Information

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IPC IPC(8): G01S1/02G01S5/02G01S5/14G08C17/02G01S19/13
CPCY02B60/50
Inventor 连正霖
Owner TRANSYST