Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Reception apparatus and antenna switch circuit of same and tuner module

A receiving device and tuner technology, which is applied in diversity/multi-antenna systems, televisions, electrical components, etc., can solve the problems of miniaturization and simplification, unfavorable large-scale devices, high prices, etc., and achieve the effect of improving the convenience of use

Inactive Publication Date: 2011-04-27
TKR
View PDF10 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned antenna switching IC, it is necessary to incorporate a large-sized MOSFET (semiconductor field effect transistor: metal oxide semiconductor field effect transistor) switch, and there are problems of large size and high cost.
In addition, a control signal for switching and controlling the switch is required, which is not preferable in terms of downsizing and simplifying the device.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reception apparatus and antenna switch circuit of same and tuner module
  • Reception apparatus and antenna switch circuit of same and tuner module
  • Reception apparatus and antenna switch circuit of same and tuner module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0031] figure 1 is a block diagram of a broadcast receiving unit of a conventional receiving device, figure 2 is a block diagram of a broadcast receiving unit of a receiving device according to an embodiment of the present invention. First, the present embodiment will be described in detail based on the description of the conventional example.

[0032] figure 1 Among them, 1 is a film antenna built in the receiving device or a whip antenna mounted on the receiving device, and 2 is an external antenna with a built-in LNA mounted on a mobile body (vehicle body, etc.) on which the receiving device is mounted. The external antenna 2 mostly protrudes from the outside of the vehicle body. 1A is an input terminal for a reception signal received by the antenna 1 , and 2A is an input terminal for a reception signal received by the antenna 2 . As described above, the antenn...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a reception apparatus and an antenna switch circuit of same and a tuner module. PND and portable TV which are employed for receiving digital TV broadcasting used for switching onboard external connected antenna and built-in antenna do not require large antenna switching IC and antenna switching control signal. A diode switch in replacement of the antenna switch IC is disposed and configured to perform switch with the on / off of a power source which is provided with LNA for provision for the external connected antenna. Therefore, the selection of any of the two antennae can realize simplification of components in usage and control signals and minimization of apparatus.

Description

technical field [0001] The present invention relates to a receiving device, an antenna switching circuit of the receiving device, and a tuner module of the receiving device, and particularly relates to a receiving device having a simplified antenna switching unit, an antenna switching circuit of the receiving device, and a tuner module of the receiving device. Background technique [0002] In a PND (Personal Navigation Device: Personal Navigation Device) and a portable television (TV / Television), many of them receive terrestrial digital broadcasting while mounted on a vehicle. Therefore, good reception sensitivity is an important condition even if the reception area is expanded. In current mobile devices such as mobile phones, there is a device that receives single-frequency broadcasting, one of terrestrial digital broadcasting, using a ceramic chip antenna built in the device or a whip antenna mounted on the device. On the other hand, among the above-mentioned PNDs and por...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N5/44H04N5/50
CPCH04B7/10H04N5/44H04N5/46H04N21/4263
Inventor 田水一秀山本悦美岩村真澄
Owner TKR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com