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wireless control device

A technology of wireless control equipment and equipment, applied in radio wave measurement systems, radio wave reflection/reradiation, record carriers used by machines, etc., can solve problems such as weak input signals and limited working distance of remote control equipment

Inactive Publication Date: 2014-10-15
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this keyboard still requires a separate power supply located inside the keyboard, with the attendant problem of
Also, the input signal may be relatively weak, limiting the distance at which the remote control device can work

Method used

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Embodiment Construction

[0034] Many implementations of the invention are possible and a few examples of these are described below. figure 1 A basic arrangement of the invention is shown wherein a wireless control device 1 (such as a computer keyboard, computer mouse, TV remote or wireless game controller) is provided with a power harvesting circuit 2 for generating power for the wireless control device. Power harvesting circuitry 2 converts energy in radio frequency (RF) signals received at antenna 5 of device 1 into power for controlling the device. The RF signal 7 is typically the signal sent from the antenna 3 on a host 9, such as a personal computer in the case of a keyboard or mouse, or a television in the case of a television remote control, but integrated in the host Or a single transmitter separate from the host could be used to cover devices within a certain range (eg in a study, office or home). For convenience, the transmitted signal is usually a microwave signal with a typical frequency ...

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Abstract

The invention relates to a wireless control device comprising an antenna (5) and a power harvester (2) for generating power for the device from radio frequency signals incident on the antenna. The device also includes an up-conversion stage; the up-conversion stage includes a first port (21) and a second port (34), the first port is used to receive a control signal (13) to be up-converted, the first port The two ports are used for receiving incident radio frequency signals (7) and outputting up-converted control signals (8) at upper and lower sideband frequencies. The antenna is coupled to the second port.

Description

technical field [0001] The present invention relates to a wireless control device, in particular for consumer electronics, such as personal computers or entertainment devices. Background technique [0002] Usually all remote control devices require their own power source (typically batteries). However, in addition to the nuisance to the user when the battery dies, there is the environmental concern and attendant expense of the large number of batteries that must be safely disposed of, both for the user and the manufacturer. [0003] Many schemes have been proposed in order to reduce the power consumption of these devices so that the batteries are not replaced as often, but this only reduces the problem rather than avoiding it. An example of this is US6507763 which mentions the use of radio frequency wireless keyboards instead of infrared keyboards because RF keyboards consume less power. It doesn't solve the hassle for the user of having to keep a lot of spare batteries of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C17/02H04B1/40
CPCH04B1/408G08C2201/10G08C17/02H04B1/04H03F7/04H04B2001/0491H02J50/00G06K19/07786G01S13/75G01S13/758
Inventor P.贝斯利O.海德
Owner SIEMENS AG
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