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Antenna arrangement apparatus, reception apparatus and method reducing a common mode signal

A technology for equipment and antennas, applied in the field of reducing common-mode signals, can solve the problems that the device has not yet calculated any route, design and implementation costs lack reusability, and navigation is not performed, so as to achieve economic benefits and simple structure manufacturing , the effect of reducing troubles

Inactive Publication Date: 2010-03-31
TOMTOM INT BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the design and implementation cost and lack of reusability of electromagnetic radiation shielding solutions make electromagnetic shielding of external sources of electromagnetic radiation unsatisfactory
[0022] It should also be mentioned that while route calculation and navigation functions are important to the overall utility of a PND, it is possible to use an information-only or "free drive" device where only maps and traffic information relevant to the current device are displayed , where the device has not calculated any routes and is not currently performing any navigation

Method used

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  • Antenna arrangement apparatus, reception apparatus and method reducing a common mode signal
  • Antenna arrangement apparatus, reception apparatus and method reducing a common mode signal
  • Antenna arrangement apparatus, reception apparatus and method reducing a common mode signal

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Embodiment Construction

[0049] Throughout the following description, the same reference numbers will be used to identify similar parts.

[0050] Embodiments of the invention will now be described with specific reference to PNDs. However, it should be kept in mind that the teachings of the present invention are not limited to PNDs, but are generally applicable to any type of processing device, for example but not limited to, configured to execute navigation software in a portable or mobile manner in order to provide route planning and navigation Functional those processing means. Thus, hereinafter in the context of this application, a navigation device is intended to include (without limitation) any type of route planning and navigation device, whether embodied as a PND, a vehicle (such as a car), or indeed a portable computing resource (such as A portable personal computer (PC), mobile phone or personal digital assistant (PDA) running route planning and navigation software.

[0051] As should be ap...

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Abstract

An antenna arrangement apparatus comprises a resonant feed-line dipole reception antenna (172) having a first pole portion (174) and a length of coaxial cable (176). The length of coaxial cable (176)comprises a second pole portion (178). The apparatus also comprises a common-mode filter (170). The length of coaxial cable (176) has a distal end with respect to the first pole portion (174), the distal end being coupled to the common-mode filter (170).

Description

technical field [0001] The invention relates to an antenna arrangement device of the type for example for receiving radio frequency signals for an electronic device, such as a navigation device or a communication device. The invention also relates to a receiver device of the type, for example, for receiving radio frequency signals for electronic devices, such as navigation devices or communication devices. The invention further relates to a method of reducing common-mode signals, said method being eg of the type used for receiving radio-frequency signals in the presence of common-mode currents generated by external sources. Background technique [0002] Portable computing devices, such as portable navigation devices (PNDs), including GPS (Global Positioning System) signal reception and processing functionality, are well known and widely used as in-car or other vehicle navigation systems. [0003] In summary, a modern PND includes a processor, memory, and map data stored wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q9/16
CPCH01Q9/16
Inventor 扬·范登埃尔森
Owner TOMTOM INT BV