Warm Up Mode For 3D Glasses

Abstract

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

1 . 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 having a liquid crystal and an opening time of less than one millisecond, and   a control circuit that alternately opens the first and second liquid crystal shutters, wherein the liquid crystal orientation is held at a point of maximum light transmission until the control circuit closes the shutter,   wherein the control circuit opens and closes the first and second liquid crystal shutters after the glasses are powered on for a predetermined time period.   
     
     
         2 . The system of  claim 1 , wherein the control circuit alternatively opens and closes the first and second liquid crystal shutters after the glasses are powered on for a predetermined time period. 
     
     
         3 . The system of  claim 1 , wherein the control circuit, after the predetermined time period, then opens and closes the first and second liquid crystal shutters as a function of a synchronization signal received by the control circuit. 
     
     
         4 . The system of  claim 3 , wherein the synchronization signal comprises a series of pulses at a predetermined interval. 
     
     
         5 . The system of  claim 4 , wherein the synchronization signal comprises a series of pulses at a predetermined interval and wherein a first predetermined number of pulses opens the first liquid crystal shutter and wherein a second predetermined number of pulses opens the second liquid crystal shutter. 
     
     
         6 . The system of  claim 4 , wherein a portion of the series of pulses is encrypted. 
     
     
         7 . The system of  claim 6 , wherein the series of pulses includes a predetermined number of pulses that are not encrypted followed by encrypted data. 
     
     
         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 method for providing a three dimensional video image, the method comprising:
 having a pair of three dimensional viewing glasses comprising a first liquid crystal shutter and a second liquid crystal shutter,   opening the first liquid crystal shutter in less than one millisecond, holding the first liquid crystal shutter at a point of maximum light transmission for a first period of time,   closing the first liquid crystal shutter and then opening the second liquid crystal shutter in less than one millisecond,   holding the second liquid crystal shutter at a point of maximum light transmission for a second period of time,   wherein the first period of time corresponds to the presentation of an image for a first eye of a viewer and the second period of time corresponds to the presentation of an image for a second eye of a viewer,   powering on the glasses; and   opening and closing the first and second liquid crystal shutters for a predetermined time period after powering on the glasses.   
     
     
         11 . The method of  claim 10 , further comprising:
 providing a synchronization signal, wherein a portion of the synchronization signal is encrypted,   sensing the synchronization signal, and   wherein the first and second liquid crystal shutters open and close in a pattern corresponding to the sensed synchronization signal only after receiving an encrypted signal after the predetermined time period.   
     
     
         12 . The method of  claim 11 , wherein the synchronization signal comprises a series of pulses at a predetermined interval and wherein a first predetermined number of pulses opens the first liquid crystal shutter and wherein a second predetermined number of pulses opens the second liquid crystal shutter. 
     
     
         13 . The method of  claim 12 , wherein a portion of the series of pulses is encrypted. 
     
     
         14 . The method of  claim 12 , wherein the series of pulses includes a predetermined number of pulses that are not encrypted followed by a predetermined number of pulses that are encrypted. 
     
     
         15 . The method of  claim 13 , wherein the first and second liquid crystal shutters open and close in a pattern corresponding to the synchronization signal only after receiving two consecutive encrypted signals. 
     
     
         16 . The method 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 method of  claim 11 , wherein the synchronization signal comprises a synchronous serial data signal. 
     
     
         18 . A computer program installed on a machine readable medium for providing a three dimensional video image to a user of 3D glasses having first and second liquid crystal viewing shutters, the computer program comprising:
 opening the first liquid crystal shutter in less than one millisecond,   holding the first liquid crystal shutter at a point of maximum light transmission for a first period of time,   closing the first liquid crystal shutter and then opening the second liquid crystal shutter in less than one millisecond,   holding the second liquid crystal shutter at a point of maximum light transmission for a second period of time,   wherein the first period of time corresponds to the presentation of an image for a first eye of a viewer and the second period of time corresponds to the presentation of an image for a second eye of a viewer,   powering on the glasses; and   opening and closing the first and second liquid crystal shutters for a predetermined time period after powering on the glasses.   
     
     
         19 . The computer program of  claim 18 , further comprising:
 providing a synchronization signal, wherein a portion of the synchronization signal is encrypted,   sensing the synchronization signal, and   wherein the first and second liquid crystal shutters open and close in a pattern corresponding to the synchronization signal only after receiving an encrypted signal after the predetermined time period.   
     
     
         20 . The computer program of  claim 19 , wherein the synchronization signal comprises a series of pulses at a predetermined interval, and wherein a first predetermined number of pulses opens the first liquid crystal shutter and wherein a second predetermined number of pulses opens the second liquid crystal shutter. 
     
     
         21 . The computer program of  claim 20 , wherein a portion of the series of pulses is encrypted. 
     
     
         22 . The computer program of  claim 20 , wherein the series of pulses includes a predetermined number of pulses that are not encrypted followed by a predetermined number of pulses that are encrypted. 
     
     
         23 . The computer program of  claim 20 , wherein the first and second liquid crystal shutters open and close in a pattern corresponding to the synchronization signal only after receiving two consecutive encrypted signals. 
     
     
         24 . The computer program of  claim 20 , wherein the synchronization signal comprises one or more data bits that are each preceded by one or more clock pulses. 
     
     
         25 . The computer-program of  claim 20 , wherein the synchronization signal comprises a synchronous serial data signal. 
     
     
         26 . A system for providing a three dimensional video image, the method comprising:
 means for having a pair of three dimensional viewing glasses comprising a first liquid crystal shutter and a second liquid crystal shutter,   wherein the first liquid crystal shutter can open in less than one millisecond,   wherein the second liquid crystal shutter can open in less than one millisecond, and   means for opening and closing the first and second liquid crystal shutters after powering up the glasses for a predetermined period of time.   
     
     
         27 . The system of  claim 26 , further comprising means for opening and closing the first and second liquid crystal shutters upon receiving a synchronization signal after the predetermined period of time. 
     
     
         28 . The system of  claim 27 , wherein the synchronization signal comprises one or more data bits that are each preceded by one or more clock pulses. 
     
     
         29 . The system of  claim 27 , wherein the synchronization signal comprises a synchronous serial data signal. 
     
     
         30 . A system for providing a three dimensional video image, the method comprising:
 means for having a pair of three dimensional viewing glasses comprising a first liquid crystal shutter and a second liquid crystal shutter,   means for opening the first liquid crystal shutter in less than one millisecond,   means for holding the first liquid crystal shutter at a point of maximum light transmission for a first period of time,   means for closing the first liquid crystal shutter and then opening the second liquid crystal shutter in less than one millisecond,   means for holding the second liquid crystal shutter at a point of maximum light transmission for a second period of time,   wherein the first period of time corresponds to the presentation of an image for a first eye of a viewer and the second period of time corresponds to the presentation of an image for a second eye of a viewer, and   means for opening and closing the first and second liquid crystal shutters after powering up the glasses for a predetermined period of time.   
     
     
         31 . The system of  claim 30 , further comprising:
 means for transmitting a synchronization signal, wherein a portion of the synchronization signal is encrypted,   means for sensing the synchronization signal, and   means for opening and closing the first and second liquid crystal shutters in a pattern corresponding to the synchronization signal only after receiving an encrypted signal after the predetermined time period.   
     
     
         32 . The system of  claim 31 , wherein the synchronization signal comprises a series of pulses at a predetermined interval and wherein a first predetermined number of pulses opens the first liquid crystal shutter and wherein a second predetermined number of pulses opens the second liquid crystal shutter. 
     
     
         33 . The system of  claim 31 , wherein a portion of the series of pulses is encrypted. 
     
     
         34 . The system of  claim 31 , wherein the series of pulses includes a predetermined number of pulses that are not encrypted followed by a predetermined number of pulses that are encrypted. 
     
     
         35 . The system of  claim 31 , wherein the first and second liquid crystal shutters open and close in a pattern corresponding to the synchronization signal only after receiving two consecutive encrypted signals. 
     
     
         36 . The system of  claim 31 , 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 31 , wherein the synchronization signal comprises a synchronous serial data signal.