초록 ▼

A transceiver which keeps circuitry associated with a receiver in a powered down state during periods when a Received Signal Strength Indicator (RSSI) indicates that a signal being received is below a pre-determined threshold level, and which begins to power up the transmitter as soon as it is deter

A transceiver which keeps circuitry associated with a receiver in a powered down state during periods when a Received Signal Strength Indicator (RSSI) indicates that a signal being received is below a pre-determined threshold level, and which begins to power up the transmitter as soon as it is determined that a packet being received requires a response. The RSSI signal represents the strength of any signal current being received, and if the RSSI signal falls below a given threshold level, digital circuitry associated with the back-end circuitry of the receiver system is disabled. If the RSSI signal rises above the threshold level, the digital circuitry of the receiver is enabled. A control circuit within the transceiver processes the packet as it is received to determine whether the packet requires a response. If it is determined that a response is necessary, the control circuit provides a control signal to the transmitter to power up the transmitter from a sleep mode even before the entire packet has been received and processed. The control circuit then continues to process the remainder of the packet as it is received while the transmitter powers up from the sleep mode. In this manner, the transmitter will become stabilized much earlier. Accordingly, the transceiver is able to respond more quickly than conventional devices and is thus able to increase response times and overall data exchange rates. Moreover, battery power of the transceiver is utilized more efficiently compared to devices which must continuously maintain the receiver and transmitter in fully powered modes.

대표청구항 ▼

[ What is claimed is:] [1.]1. A transceiver apparatus, comprising:a transmitter portion for transmitting information;a receiver portion for receiving information, the receiver portion being switchable between a low power consumption mode and an active mode; anda control circuit coupled to the receiv

[ What is claimed is:] [1.]1. A transceiver apparatus, comprising:a transmitter portion for transmitting information;a receiver portion for receiving information, the receiver portion being switchable between a low power consumption mode and an active mode; anda control circuit coupled to the receiver portion for selectively switching the receiver portion from the low power consumption mode to the active mode in response to detecting an information signal to be received by the receiver while in the low power consumption mode, whereby the receiver portion receives the information signal in the active mode;wherein the receiver portion includes power-consuming components that are selectively activated in the active mode but not activated in the low power consumption mode and power-consuming components that are activated in both the low power consumption mode and the active mode;wherein the supply of power to the power-consuming components that are not activated in the low sower consumption mode is reduced during the low sower consumption mode and increased during the active mode; andwherein the supply of power is maintained to the power-consuming components that are activated in both the low power consumption mode and the active mode during the low power consumption mode and in the active mode.