Power management system for a communication device

Abstract

A power management system for a communication device, including an accessory-signal generating device; the communication device; and a power management device for supplying electric power to the communication device if the accessory-signal generating device is not generating accessory signals and the communication device is in a communication-ready state.

What is claimed is:  
     
         1 . A power management system for a communication device, comprising: 
 an accessory-signal generating device;    the communication device; and    a power management device for supplying electric power to the communication device if the accessory-signal generating device is not generating accessory signals and the communication device is in a communication-ready state.    
     
     
         2 . The power management system according to  claim 1 , wherein the power management device supplies electric power to the communication device if there exists an access point through which communication with the communication device is established.  
     
     
         3 . The power management system according to  claim 2 , wherein the access point authenticates the communication device.  
     
     
         4 . The power management system according to  claim 3 , wherein the power management device supplies electric power to the communication device if a volume of communication traffic between the communication device and the access point is greater than a predetermined volume.  
     
     
         5 . The power management system according to  claim 2 , wherein the power management device supplies electric power to the communication device if a volume of communication traffic between the communication device and the access point is greater than a predetermined volume.  
     
     
         6 . The power management system according to  claim 2 , wherein the power management device determines whether the communication device is in a communication-ready state at substantially the instant that the accessory-signal generating device is turned off.  
     
     
         7 . The power management system according to  claim 2 , wherein the communication device is a wireless LAN.  
     
     
         8 . The power management system according to  claim 1 , wherein the power management device determines whether the communication device is in a communication-ready state at substantially the instant that the accessory-signal generating device is turned off.  
     
     
         9 . A power management system for a communication device, comprising: 
 an accessory-signal generating device;    a first communication device;    a second communication device;    a power management device for supplying electric power to the second communication device if the accessory-signal generating device is not generating accessory signals and the first communication device is in a communication-ready state; and    a startup management device for activating at least the first communication device upon receipt of startup-signals from the second communication device.    
     
     
         10 . The power management system according to  claim 9 , wherein the power management device supplies electric power to the second communication device when there is an access point through which communication with the first communication device is established.  
     
     
         11 . The power management system according to  claim 10 , wherein the access point authenticates the first communication device.  
     
     
         12 . The power management system according to  claim 11 , wherein the power management device supplies electric power to the first communication device if a volume of communication traffic between the first communication device and the access point is greater than a predetermined volume.  
     
     
         13 . The power management system according to  claim 10 , wherein the power management device supplies electric power to the first communication device if a volume of communication traffic between the first communication device and the access point is greater than a predetermined volume.  
     
     
         14 . The power management system according to  claim 10 , wherein the power management device determines whether the first communication device is in a communication-ready state at substantially the instant that the accessory-signal generating device is turned off.  
     
     
         15 . The power management system according to  claim 10 , wherein the first communication device is a wireless LAN.  
     
     
         16 . The power management system according to  claim 10 , wherein the second communication device is a specific low-power radio communication device.  
     
     
         17 . The power management system according to  claim 9 , wherein the power management device determines whether the first communication device is in a communication-ready state at substantially the instant that the accessory-signal generating device is turned off.  
     
     
         18 . The power management system according to  claim 9 , further comprising: 
 a storage device for storing data transmitted from the first communication device, wherein, the startup management device activates the first communication device and the storage device upon receipt of the startup-signals from the second communication device.    
     
     
         19 . The power management system according to  claim 9 , wherein the startup-signals are generated by the second communication device when the second communication device receives a transmission from a remote device.  
     
     
         20 . A method for managing a power supply for communication device, comprising; 
 determining if an accessory-signal generating device is generating accessory signals;    determining if the communication device is in a communication-ready state; and    if the accessory-signal generating device is not generating accessory signals and the communication device is in a communication-ready state, supplying electric power to the communication device.    
     
     
         21 . A method for managing a power supply for a communication device, comprising: 
 determining if an accessory-signal generating device is generating accessory signals;    determining if the first communication device is in a communication-ready state;    sending startup signals from the second communication device to a startup management device; and    if the accessory-signal generating device is not generating accessory signals and the first communication device is in a communication-ready state, activating at least the first communication device upon the startup management device receiving the startup signals.