Portable listening device with wireless charging case

Abstract

An earbud includes a housing that includes a driver assembly positioned within the housing forming a front volume in front of the driver and a back volume behind the driver. An acoustic insert is positioned behind the driver assembly and attached to an interior surface of the housing such that it forms a bass channel that is routed from the back volume to a vent in the housing.

What is claimed is: 
     
         1 . A case for a portable listening device, the case comprising:
 a housing having one or more cavities configured to receive the portable listening device;   a lid attached to the housing and operable between a closed position where the lid is aligned over the one or more cavities and an open position where the lid is displaced from the one or more cavities; and   a wireless power transmitter arranged to wirelessly transfer power to a wireless receiver of the portable listening device when the portable listening device is positioned in the one or more cavities.   
     
     
         2 . The case of  claim 1 , wherein the wireless power transmitter includes a coil. 
     
     
         3 . The case of  claim 1 , wherein the wireless power transmitter is arranged to wirelessly transfer data to the wireless receiver of the portable listening device. 
     
     
         4 . The case of  claim 1 , wherein the portable listening device includes a first earbud arranged to be received by a user’s first ear and a second earbud arranged to be received by a user’s second ear. 
     
     
         5 . The case of  claim 4 , wherein the first earbud includes a first wireless receiver and the second earbud includes a second wireless receiver. 
     
     
         6 . The case of  claim 1 , wherein the case includes a case battery that is coupled to a case charging circuit. 
     
     
         7 . The case of  claim 6 , wherein the case charging circuit is arranged to receive power from a wireless power source. 
     
     
         8 . The case of  claim 1 , further comprising a logic circuit that initiates turning on a wireless radio of the portable listening device by transmitting a signal to the portable listening device. 
     
     
         9 . The case of  claim 8 , wherein the signal is transmitted to the portable listening device through the wireless power transmitter. 
     
     
         10 . A portable listening device system comprising:
 an earbud comprising:
 an earbud housing having a speaker portion and a stem portion extending from the speaker portion; 
 a battery positioned within the earbud housing; 
 a speaker positioned within the speaker portion of the earbud housing and configured to direct sound into a user’s ear; and 
 a wireless radio coupled to the battery and configured to be communicatively coupled to an electronic device via a wireless communications channel a wireless power receiver arranged to receive power; and 
   a case for the earbud, the case comprising:
 a case housing defining an interior space sized and shaped to receive the earbud; 
 a case battery positioned within the case housing; 
 a logic circuit that initiates turning on the wireless radio; and 
 a wireless power transmitter arranged to transmit power to the wireless power receiver. 
   
     
     
         11 . The system of  claim 10 , wherein the wireless power transmitter includes a coil. 
     
     
         12 . The system of  claim 10 , wherein the wireless power transmitter is arranged to wirelessly transfer data to the wireless power receiver. 
     
     
         13 . The system of  claim 10 , wherein the case includes a case battery that is coupled to a case charging circuit. 
     
     
         14 . The system of  claim 13 , wherein the case charging circuit is arranged to receive power from a wireless power source. 
     
     
         15 . The system of  claim 10 , wherein the logic circuit initiates the turning on the wireless radio by transmitting a signal to the earbud. 
     
     
         16 . The system of  claim 15 , wherein the signal is transmitted to the earbud through the wireless power transmitter. 
     
     
         17 . A portable listening device system comprising:
 a portable listening device comprising:
 a device housing; 
 a battery positioned within the device housing; 
 a wireless power receiver arranged to receive power; 
 a speaker positioned within the device housing and configured to generate sound; and 
 a wireless radio coupled to the battery and configured to be communicatively coupled to an electronic device via a wireless communications channel; and 
   a case for the portable listening device, the case comprising:
 a case housing defining a cavity for storing the portable listening device; 
 a case battery positioned within the case; 
 a wireless power transmitter arranged to transmit power to the wireless power receiver; and 
 a processor that initiates turning on the wireless radio. 
   
     
     
         18 . The system of  claim 17 , wherein the wireless power transmitter is arranged to wirelessly transfer data to the wireless power receiver. 
     
     
         19 . The system of  claim 17 , wherein the processor initiates turning on the wireless radio by transmitting a signal to the portable listening device. 
     
     
         20 . The system of  claim 19 , wherein the signal is transmitted to the portable listening device via the wireless power transmitter.