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

Antenna drive apparatus

A driving device and antenna technology, which is applied in transportation and packaging, components and instruments that generate electric pulse circuits, etc., can solve the problems of false detection of the driving ECU95 and the reliability of the detection signal, and achieve the effect of reducing the number of components.

Inactive Publication Date: 2014-01-29
AISIN SEIKI KK
View PDF12 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for example, if a detection signal is output while the antenna 91 is being driven, the drive ECU 95 may erroneously detect the signal due to an AC signal superimposed on the detection signal.
In addition, when the detection performance of the detection member 92 itself deteriorates due to the influence of the electromagnetic field when the antenna 91 is driven, the reliability of the detection signal will naturally decrease.

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
  • Antenna drive apparatus
  • Antenna drive apparatus
  • Antenna drive apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] An embodiment of the present invention is embodied as an antenna driving device of a smart entry system (registered trademark), wherein the smart entry system utilizes wireless communication with a mobile phone carried by a vehicle user to The doors are locked and unlocked.

[0056] As shown in FIG. 1, an outer door handle 2 is provided on a door outer panel 1 constituting a vehicle door. The outer door handle 2 extends in the front-rear direction of the vehicle, and is attached to the front and rear of the door outer panel 1 at two places. Further, a recessed portion 1 a facing the outer door handle 2 and dented inward is formed in the door outer panel 1 . This is to enable a person to easily grasp the vicinity of the center of the outside door handle 2 .

[0057] The outer door handle 2 is, for example, formed of a resin material into a hollow shape having an internal space. Then, a detection area capable of detecting the approach or contact of a person is provided...

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 provides an antenna drive apparatus, which will not damage the reliability of a detecting element used for detecting the approaching or contacting of human beings, and can reduce the number of connecting lines between the apparatus and the drive control part. An antenna drive apparatus (2) having a drive control unit (50) and an antenna (21) connected to the drive control unit via first and second connecting lines (W1, W2), and driven by an AC signal at a first resonant frequency (f1), includes a first driven member (22) connected to the drive control unit via the connecting lines and driven by an AC signal at a second resonant frequency (f2); a sensing member (30) connected to the drive control unit via the connecting lines and driven by a DC signal, capable of sensing approach or contact of a person, and outputting a sensing signal indicating the fact that the approach or the contact has been sensed to the drive control unit via the first connecting line; and a stop means (30c) for stopping a function of the sensing member when an AC signal supplied to the antenna or the first driven member is sensed.

Description

technical field [0001] The present invention relates to an antenna driving device for driving an antenna for transmission. Background technique [0002] Conventionally, as an antenna driving device, for example, a device described in Patent Document 1 is known. This antenna drive device is a device that switches four switching elements constituting a full-bridge circuit (H-bridge circuit) by a drive circuit of a drive control unit (drive ECU) to generate an AC signal having a predetermined frequency. The AC signal is supplied to an antenna having a resonant frequency corresponding to the frequency. In addition, in order to suppress leakage of electromagnetic waves etc. from the harness electrically connecting the drive control unit and the antenna, it has also been proposed to make the impedance values ​​of the two analog circuit units arranged between the two wires of the harness equal. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B60R25/24H04B1/04
CPCG07C2009/00793G07C9/00309H03K3/01G07C2209/65
Inventor 田端恒博萩本将弘
Owner AISIN SEIKI KK
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