Pulse modulation type transmitter and pulse modulation type receiver

Abstract

The aim of the present invention is to provide a pulse modulation type transmitter apparatus and a pulse modulation type receiver apparatus, wherein both a fast synchronization establishment and a low power consumption of a synchronizing part can be achieved at the same time and wherein the data transmission / reception can be performed soon after a commencement of communication, and further a fast data transmission and a low power consumption can be achieved. A first template signal (1006), which is generated based on a separately transmitted RF frame synchronization signal (1005), is used to generate a frame synchronization signal (1009), and a second frame synchronization timing adjusting part (150) is used to synchronize the frame synchronization signal (1009) with a received RF data signal (1004). Then, a synchronization detection is performed, whereby a prompt pulse acquisition and a prompt pulse phase acquisition can be achieved. After the establishment of frame synchronization, a template switching part (142) is used to switch from the first template signal (1006) to a second template signal (1007) that has been already synchronized with the first template signal (1006). Then, a synchronization detection is performed, whereby the frame synchronization can be maintained.

Description

technical field [0001] The present invention relates to a wireless communication device using a pulse-shaped modulation signal. Background technique [0002] In addition to the rapid spread of wireless LAN equipment represented by IEEE802.11b, it is expected that a seamless network society will be established through the mutual wireless connection of AV equipment and / or personal computers. The technology of data communication devices becomes an urgent task. [0003] As one of these technologies, pulse wireless communication using a pulse-shaped modulation signal has attracted attention. As a conventional method for synchronizing received data signals in impulse wireless communication devices, a method of synchronizing by correlation between a signal at a reference time and each signal subjected to forward or backward delay processing is known. known (for example, refer to Patent Document 1). [0004] FIG. 12 is a block diagram showing the configuration of a conventional p...

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Problems solved by technology

[0009] On the other hand, in order to solve these problems, the level of the correlation pulse is judged step by step, or as in the prior art (Fig. 12), a configuration is proposed in which a plurality of reception systems are configured to remove interference waves, but there are the following problems : The judgment process is complicated, the equipment structure is large-scale, the power consumption is increased, and the equipment is expensive

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