3D Glasses
First Claim
Patent Images
1. A system for controlling the operation of a pair of 3D glasses having left and right liquid crystal viewing shutters, comprising:
- a left shutter controller operably coupled to the left liquid crystal viewing shutter for controlling the operation of the left liquid crystal viewing shutter, the left shutter controller comprising;
a first digitally controlled analog switch comprising a plurality of control inputs for controlling a mode of operation of the first digitally controlled analog switch and outputs for applying voltages across the left liquid crystal viewing shutter as a function of the mode of operation of the first digitally controlled analog switch;
a right shutter controller operably coupled to the right liquid crystal viewing shutter for controlling the operation of the right liquid crystal viewing shutter, the right shutter controller comprising;
a second digitally controlled analog switch comprising a plurality of control inputs for controlling a mode of operation of the second digitally controlled analog switch and outputs for applying voltages across the right liquid crystal viewing shutter as a function of the mode of operation of the second digitally controlled analog switch;
a charge pump operably coupled to the left and right shutter controllers for amplifying an output voltage of a battery power supply to provide control input signals to each of the left and right shutter controllers, the charge pump comprising;
a transistor;
a schottky diode operably coupled to the transistor;
an inductor operably coupled to the transistor and the schottky diode; and
a zener diode operably coupled to the schottky diode;
a CPU operably coupled to the left and right shutter controllers for controlling the operation of the left and right shutter controllers, the CPU comprising;
a microcontroller comprising a plurality of inputs representative of sensed operating conditions of the 3D glasses, a plurality of outputs for controlling the mode of operation of the microcontrollers of the left and right shutter controllers, and a plurality of outputs for controlling the operation of the charge pump;
a signal sensor operably coupled to the CPU for sensing signals transmitted to the 3D glasses, the signal sensor comprising;
a photodiode for sensing the transmission of signal to the 3D glasses and generating an input signal for transmission to the CPU; and
signal conditioning operably coupled to the photodiode for conditioning the input signals generated by the photodiode, the signal conditioning comprising;
a plurality of operational amplifiers operably coupled to the photodiode;
a plurality of resistors operably coupled to the operational amplifiers;
a plurality of capacitors operably coupled to the operational amplifiers; and
a plurality of schottky diodes operably coupled to the operational amplifiers; and
a battery sensor operably coupled to the CPU for sensing the operational state of the battery power supply and providing the operational state of the battery power supply to the CPU.
1 Assignment
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Accused Products
Abstract
A viewing system for viewing video displays having the appearance of a three dimensional image.
104 Citations
17 Claims
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1. A system for controlling the operation of a pair of 3D glasses having left and right liquid crystal viewing shutters, comprising:
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a left shutter controller operably coupled to the left liquid crystal viewing shutter for controlling the operation of the left liquid crystal viewing shutter, the left shutter controller comprising; a first digitally controlled analog switch comprising a plurality of control inputs for controlling a mode of operation of the first digitally controlled analog switch and outputs for applying voltages across the left liquid crystal viewing shutter as a function of the mode of operation of the first digitally controlled analog switch; a right shutter controller operably coupled to the right liquid crystal viewing shutter for controlling the operation of the right liquid crystal viewing shutter, the right shutter controller comprising; a second digitally controlled analog switch comprising a plurality of control inputs for controlling a mode of operation of the second digitally controlled analog switch and outputs for applying voltages across the right liquid crystal viewing shutter as a function of the mode of operation of the second digitally controlled analog switch; a charge pump operably coupled to the left and right shutter controllers for amplifying an output voltage of a battery power supply to provide control input signals to each of the left and right shutter controllers, the charge pump comprising; a transistor; a schottky diode operably coupled to the transistor; an inductor operably coupled to the transistor and the schottky diode; and a zener diode operably coupled to the schottky diode; a CPU operably coupled to the left and right shutter controllers for controlling the operation of the left and right shutter controllers, the CPU comprising; a microcontroller comprising a plurality of inputs representative of sensed operating conditions of the 3D glasses, a plurality of outputs for controlling the mode of operation of the microcontrollers of the left and right shutter controllers, and a plurality of outputs for controlling the operation of the charge pump; a signal sensor operably coupled to the CPU for sensing signals transmitted to the 3D glasses, the signal sensor comprising; a photodiode for sensing the transmission of signal to the 3D glasses and generating an input signal for transmission to the CPU; and signal conditioning operably coupled to the photodiode for conditioning the input signals generated by the photodiode, the signal conditioning comprising; a plurality of operational amplifiers operably coupled to the photodiode; a plurality of resistors operably coupled to the operational amplifiers; a plurality of capacitors operably coupled to the operational amplifiers; and a plurality of schottky diodes operably coupled to the operational amplifiers; and a battery sensor operably coupled to the CPU for sensing the operational state of the battery power supply and providing the operational state of the battery power supply to the CPU. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for controlling the operation of a pair of 3D glasses having left and right liquid crystal viewing shutters, comprising:
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a left shutter controller operably coupled to the left liquid crystal viewing shutter for controlling the operation of the left liquid crystal viewing shutter, the left shutter controller; a right shutter controller operably coupled to the right liquid crystal viewing shutter for controlling the operation of the right liquid crystal viewing shutter, the right shutter controller; a charge pump operably coupled to the left and right shutter controllers for amplifying an output voltage of a battery power supply to provide control input signals to each of the left and right shutter controllers; a CPU operably coupled to the left and right shutter controllers for controlling the operation of the left and right shutter controllers; a signal sensor operably coupled to the CPU for sensing signals transmitted to the 3D glasses; and a battery sensor operably coupled to the CPU for sensing the operational state of the battery power supply and providing the operational state of the battery power supply to the CPU; wherein the CPU is adapted to; open the left liquid crystal viewing shutter and close the right liquid crystal viewing shutter by causing the left shutter controller to apply no voltage followed by a first voltage level across the left liquid crystal viewing shutter and causing the right shutter controller to apply a second voltage level across the right liquid crystal viewing shutter, wherein the magnitude of the first voltage level is less than the magnitude of the second voltage level, and open the right liquid crystal viewing shutter and close the left viewing shutter by causing the right shutter controller to apply no voltage followed by a third voltage level across the right liquid crystal viewing shutter and causing the left shutter controller to apply a fourth voltage level across the left liquid crystal viewing shutter, wherein the magnitude of the third voltage level is less than the magnitude of the fourth voltage level. - View Dependent Claims (9, 15, 16, 17)
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10. A system for controlling the operation of a pair of 3D glasses having left and right liquid crystal viewing shutters, comprising:
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a left shutter controller operably coupled to the left liquid crystal viewing shutter for controlling the operation of the left liquid crystal viewing shutter, the left shutter controller; a right shutter controller operably coupled to the right liquid crystal viewing shutter for controlling the operation of the right liquid crystal viewing shutter, the right shutter controller; a charge pump operably coupled to the left and right shutter controllers for amplifying an output voltage of a battery power supply to provide control input signals to each of the left and right shutter controllers; a CPU operably coupled to the left and right shutter controllers for controlling the operation of the left and right shutter controllers; a signal sensor operably coupled to the CPU for sensing signals transmitted to the 3D glasses; and a battery sensor operably coupled to the CPU for sensing the operational state of the battery power supply and providing the operational state of the battery power supply to the CPU; wherein the CPU is adapted to do at least two of the following; open the left or right liquid crystal viewing shutters by applying no voltage followed by a catch voltage to the left or right liquid crystal viewing shutters; use a sensed synchronization signal to determine when to open the left liquid crystal viewing shutter or the right liquid crystal viewing shutter, wherein the sensed synchronization signal comprises a series of pulses at a predetermined interval, wherein a first predetermined number of pulses opens the first liquid crystal viewing shutter, and wherein a second predetermined number of pulses opens the second liquid crystal viewing shutter; hold the left and right liquid crystal viewing shutters either open or closed until the signal sensor receives a valid signal from a signal transmitter; open and close the left and right liquid crystal viewing shutters in a pattern corresponding to a sensed synchronization signal only after receiving the synchronization signal after a predetermined time period; indicate a low-battery signal to a viewer if the three dimensional viewing glasses will not operate longer than a predetermined time using the battery power supply by opening and closing the left and right liquid crystal viewing shutters at a predetermined rate; and operate the charge pump to accumulate electrical potential when the CPU changes the operational state of either the left or right liquid crystal viewing shutter and operate the charge pump to stop accumulating electrical potential when the level of the electrical potential equals a predetermined level. - View Dependent Claims (11, 12, 13, 14)
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Specification
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Current AssigneeX6D Limited
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Original AssigneeX6D Limited
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InventorsKimmell, Rodney W., Allen, David W., MacNaughton, Boyd
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Application NumberUS12/880,920Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current348/53CPC Class CodesH04N 13/341 using temporal multiplexingH04N 13/398 Synchronisation thereof; Co...H04N 2213/008 Aspects relating to glasses...
