Power Conservation System for 3D Glasses

Abstract

A viewing system for viewing video displays having the appearance of a three dimensional image.

1 . A system for providing a three dimensional video image to a user of 3D glasses, the system comprising:
 a power supply,   first and a second liquid crystal shutters operably coupled to the power supply, and   a control circuit operably coupled to the power supply and the liquid crystal shutters adapted to   open the first liquid crystal shutter for a first period of time,   close the first liquid crystal shutter for a second period of time,   open the second liquid crystal shutter for the second period of time,   close the second liquid crystal shutter for the first period of time, and   transfer charge between the first and second liquid crystal shutters during portions of at least one of the first and second periods of time,   wherein the first period of time corresponds to the presentation of an image for a first eye of the user and the second period of time corresponds to the presentation of an image for a second eye of the user.   
     
     
         2 . The system of  claim 1 , wherein the control circuit is adapted to use a synchronization signal to determine the first and second periods of time. 
     
     
         3 . The system of  claim 1 , further comprising an emitter that provides a synchronization signal and wherein the synchronization signal causes the control circuit to open one of the liquid crystal shutters. 
     
     
         4 . The system of  claim 3 , wherein the synchronization signal comprises an encrypted signal. 
     
     
         5 . The system of  claim 4 , wherein the control circuit will only operate after validating the encrypted signal. 
     
     
         6 . The system of  claim 1 , wherein the control circuit is adapted to detect a synchronization signal and begin operating the liquid crystal shutters after detecting the synchronization signal. 
     
     
         7 . The system of  claim 4 , wherein the encrypted signal will only operate a pair of liquid crystal glasses having a control circuit adapted to receive the encrypted signal. 
     
     
         8 . The system of  claim 3 , wherein the synchronization signal comprises one or more data bits that are each preceded by one or more clock pulses. 
     
     
         9 . The system of  claim 3 , wherein the synchronization signal comprises a synchronous serial data signal. 
     
     
         10 . A system for providing three dimensional video images, comprising:
 a pair of glasses comprising a first lens having a first liquid crystal shutter and a second lens having a second liquid crystal shutter, the liquid crystal shutters each having a liquid crystal, and   a control circuit that alternately opens the first and second liquid crystal shutters and transfers charge between the liquid crystal shutters.   
     
     
         11 . The system of  claim 10 , further comprising an emitter that provides a synchronization signal and wherein the synchronization signal causes the control circuit to open one of the liquid crystal shutters. 
     
     
         12 . The system of  claim 11 , wherein the synchronization signal comprises an encrypted signal. 
     
     
         13 . The system of  claim 12 , wherein the control circuit will only operate after validating the encrypted signal. 
     
     
         14 . The system of  claim 10 , wherein the control circuit is adapted to detect a synchronization signal and begin operating the liquid crystal shutters after detecting the synchronization signal. 
     
     
         15 . The system of claim  290 , wherein the encrypted signal will only operate a pair of liquid crystal glasses having a control circuit adapted to receive the encrypted signal. 
     
     
         16 . The system of  claim 11 , wherein the synchronization signal comprises one or more data bits that are each preceded by one or more clock pulses. 
     
     
         17 . The system of  claim 11 , wherein the synchronization signal comprises a synchronous serial data signal. 
     
     
         18 . A method for providing a three dimensional video image using first and second liquid crystal shutters, the method comprising:
 closing the first liquid crystal shutter and opening the second liquid crystal shutter,   then closing the second liquid crystal shutter and opening the first liquid crystal shutter, and   transferring charge between the first and second liquid crystal shutters.   
     
     
         19 . The method of  claim 18 , further comprising providing a synchronization signal, and opening one of the liquid crystal shutters in response to the synchronization signal. 
     
     
         20 . The method of  claim 19 , wherein the synchronization signal comprises an encrypted signal. 
     
     
         21 . The method of  claim 20 , further comprising operating only after validating the encrypted signal. 
     
     
         22 . The method of  claim 18 , further comprising detecting a synchronization signal, and begin operating the liquid crystal shutters after detecting the synchronization signal. 
     
     
         23 . The method of  claim 19 , wherein the synchronization signal comprises one or more data bits that are each preceded by one or more clock pulses. 
     
     
         24 . The method of  claim 19 , wherein the synchronization signal comprises a synchronous serial data signal. 
     
     
         25 . A computer program installed on a machine readable medium in a housing for 3D glasses having first and second liquid crystal shutters for providing a three dimensional video image to a user of the 3D glasses, the computer program comprising:
 closing the first liquid crystal shutter and opening the second liquid crystal shutter,   then closing the second liquid crystal shutter and opening the first liquid crystal shutter, and   transferring charge between the first and second liquid crystal shutters.   
     
     
         26 . The computer program of  claim 25 , further comprising:
 providing a synchronization signal, and   opening one of the liquid crystal shutters in response to the synchronization signal.   
     
     
         27 . The computer program of  claim 26 , wherein the synchronization signal comprises an encrypted signal. 
     
     
         28 . The computer program of  claim 27 , further comprising validating the encrypted signal. 
     
     
         29 . The computer program of  claim 25 , further comprising detecting a synchronization signal, and operating the liquid crystal shutters after detecting the synchronization signal. 
     
     
         30 . The computer program of  claim 26 , wherein the synchronization signal comprises one or more data bits that are each preceded by one or more clock pulses. 
     
     
         31 . The computer program of  claim 26 , wherein the synchronization signal comprises a synchronous serial data signal. 
     
     
         32 . A system for providing a three dimensional video image using first and second liquid crystal shutters, the method comprising:
 means for closing the first liquid crystal shutter and opening the second liquid crystal shutter,   means for then closing the second liquid crystal shutter and opening the first liquid crystal shutter, and   means for transferring charge between the first and second liquid crystal shutters.   
     
     
         33 . The system according to  claim 32 , further comprising means for providing a synchronization signal, and means for the synchronization signal causing opening one of the liquid crystal shutters. 
     
     
         34 . The system of  claim 33 , wherein the synchronization signal comprises an encrypted signal. 
     
     
         35 . The system of  claim 34 , further comprising means for only operating after validating the encrypted signal. 
     
     
         36 . The system of  claim 33 , wherein the synchronization signal comprises one or more data bits that are each preceded by one or more clock pulses. 
     
     
         37 . The system of claim.  33 , wherein the synchronization signal comprises a synchronous serial data signal. 
     
     
         38 . The system of  claim 32 , further comprising means for detecting a synchronization signal, and means for operating the liquid crystal shutters after detecting the synchronization signal. 
     
     
         39 . A system for providing electrical power to 3D glasses including left and right liquid crystal shutters, comprising:
 a controller operably coupled to the left and right liquid crystal shutters;   a battery operably coupled to the controller; and   a charge pump operably coupled to the controller;   wherein the controller is adapted to transfer electrical charge between the left and right liquid crystal shutters when changing the operational state of either of the left or right liquid crystal shutter; and   wherein the charge pump is adapted to accumulate electrical potential when the controller changes the operational state of either the left or right liquid crystal shutter.   
     
     
         40 . The system of  claim 39 , wherein the charge pump is adapted to stop accumulating electrical potential when the level of the electrical potential equals a predetermined level. 
     
     
         41 . A method of providing electrical power to 3D glasses including left and right liquid crystal shutters, comprising:
 transferring electrical charge between the left and right liquid crystal shutters when changing the operational state of either of the left or right liquid crystal shutters; and   accumulating electrical potential when changing the operational state of either the left or right liquid crystal shutters.   
     
     
         42 . The method of  claim 41 , further comprising stopping the accumulation of electrical potential when the level of the electrical potential equals a predetermined level. 
     
     
         43 . A computer program stored in a machine readable medium for providing electrical power to 3D glasses including left and right liquid crystal shutters, comprising:
 transferring electrical charge between the left and right liquid crystal shutters when changing the operational state of either of the left or right liquid crystal shutters; and   accumulating electrical potential when changing the operational state of either the left or right liquid crystal shutters.   
     
     
         44 . The computer program of  claim 43 , further comprising stopping the accumulation of electrical potential when the level of the electrical potential equals a predetermined level. 
     
     
         45 . A system for providing electrical power to 3D glasses including left and right liquid crystal shutters, comprising:
 means for transferring electrical charge between the left and right liquid crystal shutters when changing the operational state of either of the left or right liquid crystal shutters; and   means for accumulating electrical potential when changing the operational state of either the left or right liquid crystal shutters.   
     
     
         46 . The system of  claim 45 , further comprising means for stopping the accumulation of electrical potential when the level of the electrical potential equals a predetermined level.