Wireless communications apparatus made operative in dependent upon a received signal strength
First Claim
1. An apparatus for wireless communications, comprising:
- a wireless receiver for receiving a wireless signal; and
a controller connected to said wireless receiver for processing the received signal;
said wireless receiver comprising;
a timer for defining time at which operation of said controller is started or stopped;
a received strength signal generator for detecting received wave strength of the wireless signal received by said wireless receiver periodically at a time set in said timer, and for producing a strength signal indicating the received wave strength;
a determination circuit for comparing the strength signal with a predetermined value, and for determining whether or not the strength signal indicates that the received wave strength is higher than the predetermined value; and
a connecting circuit for making said controller operative when a result of determination of said determination circuit indicates that the received wave strength is higher than the predetermined value, and for sending received data demodulated from the received signal by said wireless receiver to said controller, said controller being operated when the predetermined value is set in said wireless receiver and when the received wave strength exceeds the predetermined value to process the received data.
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Accused Products
Abstract
Wireless communications apparatus is provided by which power consumption is much more reduced in a wireless system composed of a base station and wireless terminal stations. The apparatus installed in the base station includes a transmitter/receiver and a controller. The transmitter/receiver compares an RSSI value indicating the received wave strength of a received wireless signal with a preset value periodically at time intervals set in a timer for defining a time to start and stop the controller. When the RSSI value indicates that the received wave strength is higher than the preset value, the controller is made operative, and then the demodulated received data of the received signal are sent to the controller. The controller operates when the preset value is set in the transmitter/receiver, and analyzes the received data when the received wave strength has exceeded the preset value.
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Citations
11 Claims
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1. An apparatus for wireless communications, comprising:
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a wireless receiver for receiving a wireless signal; and
a controller connected to said wireless receiver for processing the received signal;
said wireless receiver comprising;
a timer for defining time at which operation of said controller is started or stopped;
a received strength signal generator for detecting received wave strength of the wireless signal received by said wireless receiver periodically at a time set in said timer, and for producing a strength signal indicating the received wave strength;
a determination circuit for comparing the strength signal with a predetermined value, and for determining whether or not the strength signal indicates that the received wave strength is higher than the predetermined value; and
a connecting circuit for making said controller operative when a result of determination of said determination circuit indicates that the received wave strength is higher than the predetermined value, and for sending received data demodulated from the received signal by said wireless receiver to said controller, said controller being operated when the predetermined value is set in said wireless receiver and when the received wave strength exceeds the predetermined value to process the received data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for wireless communications comprising the steps of:
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preparing a wireless communication apparatus including a wireless receiver for receiving a wireless signal, and a controller connected to the wireless receiver for processing the received signal;
defining time at which operation of the controller is started or stopped;
detecting received wave strength of the wireless signal received by the wireless receiver periodically at a time set in said step of defining time to produce a strength signal indicating the received wave strength;
comparing the strength signal with a predetermined value to determine whether or not the strength signal indicates that the received wave strength is higher than the predetermined value;
making the controller operative when a result of determination of said step of comparing indicates that the received wave strength is higher than the predetermined value to send received data demodulated from the received signal by the wireless receiver to the controller; and
operating the controller when the predetermined value is set in the wireless receiver and when the received wave strength exceeds the predetermined value to process the received data. - View Dependent Claims (9, 10, 11)
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Specification