WO2013040608A1

WO2013040608A1 - Two-way communications for 3d glasses and display device

Info

Publication number: WO2013040608A1
Application number: PCT/US2012/057260
Authority: WO
Inventors: Jure Bezgovsek; Rodney W. Kimmell; Boyd Macnaughton; David W. Allen; Ami Dror
Original assignee: X6D Limited
Priority date: 2011-08-26
Filing date: 2012-09-26
Publication date: 2013-03-21

Abstract

A method of performing two-way communications with three dimensional (3D) shutter glasses including displaying two-dimensional (2D) images on a display and receiving a radio frequency (RF) signal from the 3D shutter glasses, wherein the RF signal comprises a request to initiate a three-dimensional (3D) mode of operation of the display, and in response to receiving the RF signal, displaying 3D images on the display and transmitting a synchronization signal to the 3D shutter glasses.

Description

TWO-WAY COMMUNICATIONS FOR 3D GLASSES AND DISPLAY DEVICE

1. CROSS-REFERENCE TO RE LATED APPLICATIONS

[0001] This appiication ciaims the benefit of the fiiing date of U.S. provisionai patent appiication serial no. 61/542.427, filed on 10/3/201 1 , attorney docket number 092847.001053, the disclosure of which is incorporated herein by reference.

[0002] This application ciaims the benefit of the filing date of U.S. provisionai patent appiication serial no. 61/550,749, fiied on 10/24/2011 , attorney docket number 092847.001352, the disclosure of which is incorporated herein by reference.

[0003] This application is a continuation in part of U.S. utility patent application seria! nos. 12/619,518, 12/619,517, 12/619,309, 12/619,415, 12/619,400, 12/619,431 , 12/619,163, 12/619,456, 12/619,102, ali fiied on November 16, 2009, the disclosures of ali of which are incorporated herein by reference.

[0004] This application is a continuation in part of U.S. utility patent appiication serial no. 13/036,944, fifed on 3/2/201 1 , which claims the benefit of the filing date of U.S. Provisional Patent Application No. 61/309,61 1 , attorney docket number 092847.000122, fiied on 3/2/2010, the disclosure of which is incorporated herein by reference.

[0005] This application is a continuation in part of U.S. utility patent appiication serial no. 13/038,944, attorney docket n ber 092847.000807, fiied on 3/2/201 1 , which claims priority to U.S. Provisional Patent Application No. 61/309,61 1 , both of which are incorporated by reference herein in their entirety. 092847.001543

[0008] This application is a continuation in part of U.S. utility patent application serial no. 13/045,728, filed on 3/11/201 1 , which claims the benefit of the filing date of U.S. Provisional Patent Application No. 61/319,727, attorney docket number 092847.000295, filed on 3/31/2010, the disclosures of which are incorporated herein by reference.

[0007] This application is a continuation in part of U.S. utility patent application serial no. 13/045,728, attorney docket number 092847.000885, filed on 3/1 1/201 1 , which claims priority to U.S. Provisional Patent Application No. 61/319,727, both of which are incorporated by reference herein in their entirety.

[0008] This application is a continuation in part of U.S. utility patent application serial no. 13/171 ,531 , fifed on 6/29/201 1 , which claims the benefit of the filing date of U.S. Provisional Patent Application No. 61/359,612, attorney docket number 092847.000335, filed on 6/29/2010, the disclosures of which are incorporated herein by reference.

[0009] This application is a continuation in part of U.S. utility patent application serial no. 13/178,382, filed on 7/5/201 1 , which claims the benefit of the filing date of U.S. Provisional Patent Application No. 61/361 ,695, attorney docket number 092847.000404, filed on 7/6/2010, the disclosures of which are incorporated herein by reference.

[0010] This application is a continuation in part of PCT application no. PCT/US 1 1/49335, filed on 8/26/201 1 , which claims the benefit of the filing date of U.S. Provisional Patent Application No. 61/377,278, attorney docket number 092847.000409, filed on 8/26/2010, the disclosures of which are incorporated herein by reference.

[001 1] This application is a continuation in part of PCT patent application no. PCT/US 1 1/51000, filed on 9/9/201 1 , which claims the benefit of the filing date of U.S. Provisional Patent Application No. 61/381 ,329, attorney docket number 092847.000518, fiied on 9/9/2010, the disclosures of which are incorporated herein by reference.

2. BACKGROUND

[0012] This disclosure relates to image processing systems for the presentation of a video image that appears three dimensional to the viewer. The television industry has 092847.001543 incorporated various techniques of 3D presentation into modem teievisions. For example, 3D televisions may use stereoscopic capture, multi-view capture, a two dimensionai (2D) plus depth format, or a 3D display {i.e., a display capable of presenting offset images that are presented separately to the ieft and right eye).

[0013] in the case of 3D displays, the independent presentation of separate images to each eye may be accomplished with our without eyeglasses. For example, eyeglasses may be used to filter the separate offset images to each eye. !n another example, the iighi source of the television may split the images directionally into each eye, allowing the viewer to experience the 3D presentation without glasses. If active eyeglasses are used, wireless emitters are typically used to synchronize separate images of the 3D displays with, for example, shutter eyeglasses, allowing the shutter eyeglasses to filter the separate images to each eye.

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Fig. 1 is a schematic illustration of an exemplary system for viewing 3D images.

[0015] Fig. 2 is a flow chart illustration of an exemplary method of operating the system of Fig. 1 ,

[0016] Figs. 3a and 3b are schematic illustrations of an exemplary system for viewing 3D images.

[0017] Fig. 4 is a flow chart illustration of an exemplary embodiment of operating the systems of Figs. 1 , 3a and 3b.

[0018] Figs. 5a, 5b, 5c and 5d is a flo chart illustration of an exemplary embodiment of operating 3D shutter glasses.

[0019] Figs. 6a, 6b and 6c is a flow chart illustration of an exemplary embodiment of a method of operating the systems of Figs. 1 , 3a and 3b. 092847.001543

[0020] Figs. 7a and 7b is a flow chart illustration of an exemplary embodiment of a method of operating the systems of Figs. 1 , 3a and 3b.

[0021] Fig. 8 is a flow chart illustration of an exemplary embodiment of a method of operating 3D shutter glasses.

[0022] Fig. 9 is a flow chart illustration of an exemplary embodiment of a method of operating 3D shutter glasses.

[0023] Fig. 10 is a flow chart illustration of an exemplary embodiment of a method of operating 3D shutter glasses.

[0024] Figs, 1 1a-11s is a flow chart illustration of an exemplary embodiment of a method of operating 3D shutter glasses.

[0025] Fig. 12 is a schematic illustration of an exemplary system for viewing 3D images.

[0026] Fig. 13 is a flow chart illustration of an exemplary method of operating the system of Fig. 12.

[0027] Fig. 14 is a flow chart illustration of an exemplary method of operating the system of Fig. 12.

DETAIL ED DESCRIPTION

[0028] In the drawings and description that follows, like parts are marked throughout the specification and drawings with the same reference numerals, respectively. The drawings are not necessarily to scale. Certain features of the invention may be shown exaggerated in scale or in somewhat schematic form and some details of conventional elements may not be shown in the interest of clarity and conciseness. The present invention is susceptible to embodiments of different forms. Specific embodiments are described in detaii and are shown in the drawings, with the understanding that the present disclosure is to be considered an exemplification of the principles of the invention, and is not intended to limit the invention to that illustrated and described 092847.001543 herein. It is to be fully recognized that the different teachings of the embodiments discussed below may be employed separately or in any suitable combination to produce desired results. The various characteristics mentioned above, as well as other features and characteristics described in more detail below, will be readily apparent to those skilled in the art upon reading the following detailed description of the embodiments, and by referring to the accompanying drawings.

[0029] Referring to Fig, 1 , an exemplary embodiment of a system 100 for viewing 3D images includes a display device 102, having an internal clock 102a, that is operab!y coupled to a signal transmitter 104.

[0030] In an exemplary embodiment, the display device 102 may, for example, be a television, movie screen, liquid crystai display, computer monitor, or other display device, adapted to display, for example, left and right images intended for viewing by the left and right eyes, respectively, of a user of the system 00.

[0031] In an exemplary embodiment, the signal transmitter 104 operably coupled to the display device 102 is adapted to transmits signals for controlling the operation of one or more pairs of conventional 3D glasses 106.

(0032] In an exemplary embodiment, the 3D glasses 106 include left and right shutters, 108 and 110, and left and right shutter controllers, 112 and 114, for controlling the operation of corresponding left and right shutters. In several exemplary embodiments, the left and right shutters, 108 and 110, may, for example, include liquid crystals such as Pi cells and/or twisted nematic ceils, or functional equivalents thereof. A CPU 118, having a clock 118a, Is operably coupled to the left and right shutter controller, 112 and 114, for controlling and monitoring the operation of the left and right shutter controllers. A signal transceiver 120 is also operably coupled to the CPU 118 for sensing signals transmitted to the 3D glasses 106. In several exemplary embodiments, the signal transceiver 120 ma be adapted to transmit and/or sense any number of different types of signals, Including, for example, infrared, radio frequency, electromagnetic, ultrasonic, combinations of such signals, and/or other signals, A battery 122 and a battery sensor 124 may aiso be operably coupled to the CPU 118 for 092847.001543 providing electrical power and sensing a ieve! of available electrical power respectivel . In several exemplary embodiments, the battery 122 may, for example, be removable, rechargeable, or both. In an exemplary embodiment, the 3D glasses 106 may also, or in the alternative, be directly powered by an external power source. The general design and operation of the 3D glasses 106 are considered well known to persons having ordinary skill in the art.

[0033] In an exemplary embodiment the signal transmitter 104 Is adapted to transmit signals such as, for example, electromagnetic, infrared, acoustic, and/or radio frequency signals that may or may not be transmitted through an insulated conductor and/or through free space. Furthermore, in an exemplary embodiment, the signal transmitter 104 ma transmit one or more signals at the same time, which may or may not include the same information.

[0034] Referring to Fig. 2, In an exemplary embodiment, the system 100 implements a method 200 of operation in which, in 202, the system determines if the operation of the 3D glasses 106 with the display device 102 should be initialized. In an exemplar embodiment, the system 100 may determine that the operation of the 3D glasses 106 with the display device 102 should be initialized if, for example, the power supply for either device is cycled from off to on or if the user of the system selects an initialization of operation of the 3D glasses with the display device 102.

[0035] If the system determines that the operation of the 3D glasses 106 with the display device 102 should be initialized in 202, then, sn 204, an information word is transmitted from the display device 102 using the signal transmitter 104 and received by the signal transceiver 120. In an exemplary embodiment, the information word may include one or more of the following: 1 ) the type of display device, 2) the operating frequency of the display device, 3) the opening and closing sequence of the left and right shutters, 108 and 110, and 4} the 3D display format that will be used by the display device 1 2. In an exemplary embodiment, the information word is then used by the 3D glasses 106 to control the operation of the left and right shutters, 108 and 110, to permit the wearer of the 3D glasses to view 3D images by viewing the display device 102. In 092847.001543 an exemplary embodiment, the information word is also used initially to synchronize the clock 102a of the display device 102 with the clock 118a of the CPU 118 of the 3D glasses. In this manner, the opening and dosing of the left and right shutters, 108 and 110_; may be initially synchronized with the corresponding images intended for viewing through the respective shutters,

[0036] In an exemplary embodiment, the system 100 then determines if a time out period has expired in 206. If the time out period has expired, then, in 208, the transmitter 104 then transmits a synchronization signal to the signal transceiver 120. In an exemplary embodiment, the synchronization signal includes a synchronization pulse, a time of transmission of the synchronization signal and a time delay of the transmission of the synchronization signal. In this manner, the synchronization signal is used to resynchronize the clock 102a of the display device 102 with the dock 118a of the CPU 118 of the 3D glasses. In this manner, the opening and closing of the left and right shutters, 108 and 110, may be resynchronized with the corresponding images intended for viewing through the respective shutters.

[0037] In an exemplary embodiment, if the time delay of the transmission of the synchronization signal is anything other than a zero value, the non-zero value of the time delay of the transmission of the synchronization signal may then be used by the CPU 1 8 of the 3D glasses 106 to correctly synchronize the clock 118a of the CPU with the clock 102a of the display device 102, In an exemplary embodiment, the time delay of the transmission of the synchronization signal may be a non-zero value if, for example, there was a time delay within the signal transmitter 104 of the display device 102 that affected the time of transmission of the synchronization signal to the signai sensor 120 of the 3D glasses 106. In this manner, the method 200 may permit effective synchronization of the clock 118a of the CPU 118 of the 3D glasses 106 with the clock 102a of the display device 102 in a radio frequency communication protocol such as Bluetooth®. Bluetooth® is a registered trademark of Bluetooth SIG, Inc., a privately held, not-for-profit trade association headquartered in Kirk!and, Washington. 092847.001543

[0038] In an exemplary embodiment, the system 100 and/or method 200 may include, or omit, one or more aspects of one or more of the exemplary embodiments disclosed herein,

[0039] Referring now to Figs, 3a and 3b, an exemplary embodiment of a system 300 for viewing 3D images is substantially identical to the system 100, except as noted below. In an exemplary embodiment, the system 300 includes the display device 102 and one or more pairs of 3D glasses 302.

[0040] In an exemplary embodiment the 3D glasses 302 are substantially identical in design and operation to the 3D giasses 100 except that the 3D glasses 302 further include a memory 304 that is operabiy coupled to the CPU 1 18. In several exemplary embodiments, the memory 304 may, for example, include a non-volatile memory device, digital memory device, analog memory device, volatile memory device, combinations of one or more, and/or functional equivalents thereof,

[0041] In an exemplary embodiment, the memory 304 operabiy coupled to the CPU 1 18 of the 3D glasses 300 may include a look up table 304a that includes identifiers 304aa for various synchronization protocols and the associated operating rules 304ab. In this manner, the 3D glasses 300 may use any number of synchronization protocols during operation thereby permitting the 3D glasses to be used with any number of display devices 102,

[0042] In an exemplary embodiment, referring now to Fig. 4, during the operation of the system 300, the sysiem may implement a method 400 of operating in which the 3D viewing glasses 302 may determine if the 3D display device 102 is operating In 402, The 3D viewing glasses 302 may then determine the presence of a synchronization signal from the 3D display device 102 in 404. In an exemplary embodiment, in 404, the 3D glasses 302 may determine the presence or absence of a synchronization signal using the look up table 304a to determine if a recognizable synchronization signal is being transmitted by the display device 102. The 3D viewing glasses 302 may then specifically identity the synchronization signal being transmitted by the display device 102 in 406. In an exemplary embodiment, In 406, the 3D glasses 302 may determine 092847.001543 the identity of the synchronization signal transmitted by the display device 102 using the look up table 304a. The 3D viewing giasses 302 may then, in 408, operate in synchronization with the display of images on the display device 102 using the synchronization protocol for the identified synchronization signal Sn an exemplary embodiment, in 408, the 3D glasses 302 may operate in synchronization with the display of images on the display device 102 using the synchronization protocol by using the iook up table 304a.

[0043] In an exemplary embodiment, as illustrated in Figs. 5a, 5b, 5c and 5d, one or more of the 3D giasses 106 and/or 302 of one or more of the systems 100 and/or 300 may implement a method 500 of operation in which, in 502, the 3D giasses are placed in a stand-by mode of operation for a predetermined time period. In an exemplary embodiment, the stand-by mode of operation may be a mode of operation in which the 3D giasses wait for a command signal,

[0044] if the 3D giasses have been in the stand-by mode of operation for a predetermined time period in 502, then the 3D giasses determine if an incoming signa! has been received by the 3D giasses in 504. !n an exemplary embodiment, in 504, the incoming signal may, for exampie, be a radio frequency, acoustic and/or infrared signai, or combination thereof, !f the 3D glasses do not receive an incoming signal in 504, then, in 506, the 3D glasses determine the power level of the battery 122.

[0045] If the battery power ievel is determined to be high in 506, then the 3D glasses return to the stand-by mode of operation in 502. Alternatively, if the battery power leve! is determined to be Sow in 506, then the 3D glasses are placed into a stand-by mode of operation in which an indication of a iow power condition for the battery is provided by the 3D giasses in 508.

[0046] If the 3D giasses have been in the stand-by mode of operation with an indication of a low power condition in 508 for a predetermined time period, then, in 510, the 3D glasses determine if an incoming signai has been received by the 3D giasses. In an exemplary embodiment, in 510, the incoming signal may, for exampie, be a radio frequency, acoustic and/or infrared signal, or combination thereof. If the 3D giasses do 092847.001543 not receive an incoming signal in 510, then the 3D glasses return to the stand-by mode of operation with an indication of a low power condition in 508.

[0047] If the 3D glasses do receive an incoming signal in 504 or 510, then the 3D glasses implement a warm: up mode of operation in 512, tn an exemplary embodiment, in 512, the 3D glasses operate the shutters, 108 and 110, to ensure proper operation, fn an exemplary embodiment, in 512, the 3D glasses operate the shutters, 108 and 110 implement the warm u mode of operation in 512 for a predetermined time period, then, in 514, the 3D glasses determine if a command signal has been received that requests a two-dimensional ("2D") mode of operation or a three-dimensional ("3D") mode of operation.

[0048] If the 3D glasses determine that a command signal has been received that requests 3D mode of operation in 514, then the 3D glasses measure and set the frame rate of the 3D glasses in 516, In an exemplary embodiment, in 516, the 3D glasses measure and set the frame rate of the 3D glasses based at least in part on information received within an incoming signal that may be transmitted to the 3D glasses from a display device such as, for example, a movie screen, a computer display, a television, or other display device.

[0049] After determining the frame rate in 516, the 3D glasses operate the shutters, 108 and 110 as a function of the frame rate. In an exemplary embodiment, 3D glasses operate the shutters, 108 and 110, in 518 using one or more of the methods and teachings of the present disclosure.

[0050] If ½ of a frame has elapsed during the operation of the 3D glasses, in 520, then the 3D glasses determine if a synchronization signal has been received in 522. If the 3D glasses determine that a synchronization signal has been received in 522, then the 3D glasses operate the operate the shutters, 108 and 110, in 518 as a function of the frame rate. Alternativeiy, if the 3D glasses determine thai a synchronization signal has not been received in 522, then the 3D glasses determine if a 2D command signal has been received or if a predetermined time period has eiapsed since the receipt of a synchronization signal in 524. 092847.001543

[0051] If the 3D glasses determine thai a 2D command signal has not been received and that a predetermined time period has not elapsed since the receipt of a synchronization signal in 524, then the 3D glasses operate the operate the shutters, 108 and 110, in 518 as a function of the frame rate. In this manner, the 3D g!asses may continue to operate even if signals cannot be sent to the 3D giasses such as, for example, if the transmitter 104 of the display device 102 malfunctions, is delayed in operation, or is somehow blocked.

[0052] Alternatively, if the 3D glasses determine that a 2D command signal has been received or a predetermined time period has elapsed since the receipt of a synchronization signal in 524, or determine thai a 2D command signal has been received in 514, then the 3D giasses are operated in a clear mode of operation in 526. In an exemplary embodiment, in 526, the 3D glasses are operated in a clear mode of operation such that the left and right shutters, 108 and 110, of the 3D glasses are both optically transparent such that the wearer of the glasses sees a 2D image on a display device.

[0053] If the 3D glasses are operated in a clear mode of operation for a predetermined time period in 526, then the 3D glasses determine if a synchronization signal has been received in 528. If the 3D giasses determine that a synchronization signal has been received in 528, then the 3D glasses measure and set the frame rate of the 3D glasses in 516. Alternativeiy, if the 3D glasses determine that a synchronization signal has not been received in 528, then the 3D glasses determine if the 3D glasses have operated in the clear mode of operation for a predetermined time period without having received a 2D command signal in 530.

[0054] if the 3D giasses determine that the 3D glasses have not operated in the clear mode of operation for a predetermined time period without having received a 2D command signal in 530, then the 3D giasses operate in the clear mode of operation in 6226, Alternatively, if the 3D giasses determine thai the 3D giasses have operated in the clear mode of operation for a predetermined time period without having received a 092847.001543

2D command signal in 530, then the 3D glasses operate in the standby mode of operation in 502.

[0055] Referring now to Figs. 6a, 6b and 6c, in an exemplary embodiment, one or more of the 3D glasses 106 and/or 302 of one or more of the systems 100 and/or 300 may implement a method 600 of operation in which, in 602, the 3D glasses are in a s!eep mode of operation, if a timeout occurs in 604, the 3D giasses wake up and use a default synchronization protocol in 606. !n an exemplary embodiment, the default synchronization protocol may be stored in the memory of the 3D glasses. In an exemplary embodiment, the default synchronization protocol may be the synchronization protocol last used by the 3D glasses and may be stored in the memory of the 3D glasses,

[0056] if a synchronization signal is not received by the 3D giasses within a timeout period in 610, then operation of the 3D giasses continues in 602. Alternatively, if a synchronization signal is received by the 3D giasses within a timeout period in 610, then the 3D glasses determine If the received synchronization signal matches the default synchronization protocol in 612.

[0057] if the received synchronization signal matches the default synchronization protocol In 612, then the 3D glasses increment a CORRECT FLAG1 in 614 and then determine if the CORRECT FLAG1 is greater than a predetermined value in 616. if the 3D glasses determine that the CORRECT FLAG1 is greater than a predetermined value in 816, then the 3D glasses are placed into a normal run mode of operation in 618. Aiternatively, if the 3D glasses determine that the CORRECT FLAG1 is not greater than a predetermined value in 616, then the 3D glasses return to operation in 610.

[0058] Aiternatively, if the received synchronization signal does not match the default synchronization protocol in 612, then the received synchronization signal is compared with the possible synchronization protocols stored within a memory of the 3D giasses in 620. If the received synchronization signal does match one of the possible synchronization protocols in 622, then the 3D giasses increment a CORRECT FLAG2 in 624 and then determine if the CORRECT FLAG2 is greater than a predetermined value 092847.001543 in 626. if the 3D glasses determine that the CORRECT FLAG2 is greater than a predetermined value in 626, then the 3D giasses are placed into a normai run mode of operation in 628. AStematively, if the 3D glasses determine that the CORRECT FLAG2 is not greater than a predetermined value in 626, then the 3D giasses return to operation in 610,

[0059] Alternatively, if the received synchronization signal does not match one of the possible synchronization protocols in 622, then the 3D glasses increment an ERROR FLAG in 630 and then determine if the ERROR FLAG is greater than a predetermined value in 632. if the ERROR FLAG is greater than a predetermined value in 632, then the 3D giasses return to operation in 602. Alternatively, if the ERROR FLAG is not greater than a predetermined value in 632, then the 3D giasses return to operation in 610.

[0060] Referring now to Figs. 7a and 7b, in an exemplary embodiment, one or more of the 3D glasses 106 and/or 302 of one or more of the systems 100 and/or 300 may implement a method 700 of operation in which, in 702, the 3D glasses are in a sleep mode of operation, if a timeout occurs in 704, the 3D glasses wake up and set a COUNT and a PULSE COUNT both equal to zero in 708 and 708, respectively, and then determine if a synchronization signal pulse was received within a timeout period in 710.

[0061] If a synchronization signai pulse was received within a timeout period in 710, then the 3D giasses wiil increment the PULSE COUNT in 712. Alternatively, if a synchronization signal pulse was not received within a timeout period in 710, then the 3D glasses will store the PULSE COUNT corresponding to the COUNT in a memory of the 3D giasses in 714.

[0062] The 3D giasses wiii then increment the COUNT in 716 and then determine if the COUNT is greater than a predetermined constant vaiue in 718. If the COUNT is not greater than a predetermined constant value in 718, then the 3D giasses will continue operation in 708, 092847.001543

[0063] Alternatively, if the COUNT is greater than a predetermined constant value in 718, then the 3D glasses will determine if all of the stored PULSE COUNT values are equal in 720. If the 3D glasses determine that all of the stored PULSE COUNT values are not equal in 720, then the 3D glasses will continue operation in 702.

[0064] Alternatively, if the 3D glasses determine that all of the stored PULSE COUNT values are equal in 720, then the 3D glasses will determine if the stored PULSE COUNT values are all equal to zero in 722. If ihe 3D glasses determine that the stored PULSE COUNT values are all equal to zero in 722, then the 3D glasses will select the synchronization protocol for use based upon one or more other parameters in 724 and wili then be placed in a RU MODE in 728.

[0065] Alternatively, if the 3D glasses determine that the stored PULSE COUNT values are not all equal to zero in 722, then the 3D glasses will select the synchronization protocol for use based upon the average stored PULSE COUNT in 728 and will then be placed in a RUN MODE in 730.

[0066] Referring now to Fig. 8, in an exemplary embodiment, one or more of the 3D glasses 106 and/or 302 of one or more of the systems 100 and/or 300 may implement a method 800 of operation in which, in 802, the 3D glasses are in a CLEAR MODE of operation. In an exemplary embodiment, in the CLEAR MODE in 802, both of the shutters of the 3D glasses 106 and/or 302 are optically transmissive.

[0067] In 804, the 3D glasses determine if a timeout has occurred. If a time out has occurred in 804, then the 3D glasses are placed in an OFF MODE of operation in 806. Alternatively, if the 3D glasses determine if a timeout has not occurred in 804, then, in 808, the 3D glasses determine if an error of a synchronization signal received by the 3D glasses is excessive in 808.

[0068] If the error of the synchronization signal received by the 3D glasses is excessive in 808, then the 3D glasses ar placed in an OFF MODE of operation in 806. Alternatively, if the 3D glasses determine that the error of the synchronization signal 092847.001543 received by the 3D glasses is not excessive in 808_: then the 3D glasses determine if the synchronization signal received by the 3D glasses is correct in 810.

[0069] if the 3D glasses determine that the synchronization signal received by the 3D glasses is correct in 810, then the 3D glasses are placed in an ON MODE of operation in 812. in an exemplary embodiment, in the ON MODE of operation in 812, the 3D glasses may implement one or more of the methods of the exemplary embodiments of the present disclosure. Alternatively, if the 3D glasses determine that the synchronization signal received by the 3D glasses is not correct in 810, then the 3D glasses are placed in a CLEAR MODE of operation in 802.

[0070] Referring now to Fig. 9, in an exemplary embodiment, one or more of the 3D glasses 106 and/or 302 of one or more of the systems 100 and/or 300 may implement a method 900 of operation in which, in 902, the 3D glasses operate in a FLYWHEEL MODE of operation, fn an exemplary embodiment, in the FLYWHEEL MODE in 902, the left and right shutters of the 3D glasses 106 and/or 302 are operated to open and close including the following operating states:

[0071] In this manner, in the FLYWHEEL MODE in 902, the left and right shutters of the 3D glasses are alternately opened and closed by repeating the operational states 1~ 2-1-2-1 -2-1 -2 ... In an exemplary embodiment, in the FLYWHEEL MODE in 902, the operation of the left and right shutters of the 3D glasses are controlled in accordance with the following operational parameters:

OPERATING SHUTTER 092847.001543

PARAMETER LEFT RIGHT I

OPEN TIME LOT ROT

CLOSE TIME LCT RCT I

OPEN DELAY LOD ROD I

CLOSE DELAY LCD RCD I

[0072] in an exemplary embodiment, the LOT refers to the amount of time the left shutter is open within a display frame that includes a left eye image and a right eye image to permit a user of the 3D glasses to view a left eye image, the ROT refers to the amount of time the right shutter is open within a dispiay frame that includes a left eye image and a right eye image to permit a user of the 3D glasses to view a right eye image, the LCT refers to the amount of time the left shutter is closed within a dispiay frame that includes a left eye image and a right eye image, the RCT refers to the amount of time the right shutter is dosed within a dispiay frame that includes a left eye image and a right eye image, the LOD refers to the amount of elapsed time within a display frame that includes a ieft eye image and a right eye image before the left shutter is opened, the ROD refers to the amount of eiapsed time within a display frame that includes a ieft eye image and a right eye image before the right shutter is opened, the LCD refers to the amount of elapsed time within a dispiay frame that includes a left eye image and a right eye image before the ieft shutter is closed, the RCD refers to the amount of eiapsed time within a display frame that includes a left eye image and a right eye image before the right shutter is closed.

(0073] In 904, the 3D glasses determine if a synchronization signal has been received. If the 3D glasses determine that a synchronization signai has not been received in 904, then the 3D glasses return to the FLYWHEEL MODE in 902. Alternatively, if the 3 glasses determine that a synchronization signai has been 092847.001543 received in 904, then the 3D glasses determine if the synchronization signal has errors in 906.

[0074] if the 3D glasses determine that the synchronization signal has errors in 906, then the 3D glasses will increment a synchronization signal error counter in 908 and then determine, In 910, if the synchronization signal error counter exceeds a predetermined value in 910.

[0075] if the 3D glasses determine thai the synchronization signal error counter exceeds a predetermined value in 910, then the 3D glasses will then determine if the 3D glasses are operating in a RUN MODE or a CLEAR MODE of operation in 912. if the 3D glasses determine that the 3D glasses are operating in a RUN MODE of operation in 912, then the 3D glasses will then operate in a CLEAR MODE of operation in 914. In an exemplary embodiment, in the CLEAR MODE in 914, both of the shutters of the 3D glasses are optically transmissive. Alternatively, If the 3D glasses determine that the 3D glasses are operating in a CLEAR MODE of operation in 912, then the 3D glasses will then operate in an OFF MODE of operation in 918.

[0076] Alternatively, if the 3D glasses determine that the synchronization signal does not have errors in 906, then the 3D glasses will reset the FLYWHEEL MODE of operation in 906, In an exemplary embodiment, the 3D glasses will reset the FLYWHEEL MODE of operation in 906 by modifying one or more of the operating parameters of the FLYWHEEL MODE using information contained within the synchronization signals. After resetting the FLYWHEEL MODE of operation in 906, the 3D glasses will then return to the FLYWHEEL MODE of operation in 902.

[0077] Referring now to Fig. 10. in an exemplary embodiment, one or more of the 3D glasses 106 and/or 302 of one or more of the systems 100 and/or 300 may implement a method 1000 of operation in which, in 1002, the 3D glasses operate in a FLYWHEEL MODE of operation. In an exemplary embodiment, in the FLYWHEEL MODE in 1002, the left and right shutters of the 3D glasses are operated to open and close as described above with regard to the methods 800 and/or 900. 092847.001543

[0078] In 1004, the 3D glasses determine if a synchronization signal has been received, if the 3D glasses determine that a synchronization signai has been received in 1004, then the 3D glasses will reset the FLYWHEEL MODE of operation in 1006. In an exemplary embodiment: the 3D glasses will reset the FLYWHEEL MODE of operation in 1006 by modifying one or more of the operating parameters of the FLYWHEEL MODE using information contained within the synchronization signals. After resetting the FLYWHEEL MODE of operation in 1006, the 3D glasses will then return to the FLYWHEEL MODE of operation in 1002.

[0079] Alternatively, if the 3D glasses determine that a synchronization signai has not been received in 1004, then the 3D glasses will determine if FLYWHEEL MODE timeout has occurred in 1008, If th 3D glasses will determine that a FLYWHEEL MODE timeout has occurred in 1008, then the 3D glasses will then operate in a CLEAR MODE of operation in 1010. In an exemplary embodiment, in the CLEAR MODE in 1010, both of the shutters of the 3D glasses are optically transmissive.

[0080] Referring now to Figs. 11a-11s, in an exemplary embodiment, one or more of the 3D glasses 106 and/or 302 of one o more of the systems 100 and/or 300 may implement a method 1100 of operation in which, in 1102, the 3D glasses determine if a received synchronization signai is a default signai DEFAULT!

[0081] !f the 3D glasses determine that the received synchronization signal is a default signal DEFAULT1 in 1102, then the 3D glasses determine if no signal has been received within a predetermined timeout period in 1104 and 1106. In an exemplary embodiment, once the timeout period in 1106 has expired, the 3D glasses determine if a pulse has been received in 1108. If the 3D glasses determine that a pulse has been received in 1108, then the 3D glasses increment a bit count in 1110.

[0082] In an exemplary embodiment, the 3D glasses then determine if the bit count is greater than two in 1112, If the 3D glasses then determine that the bit count is not greater than two in 1112, then the 3D glasses wait during a predetermined time delay in 1114 and return to operation in 1108. Alternatively, if the 3D glasses determine that the 092847.001543 bit count is greater than two in 1 112, then the 3D glasses wait to see if no signal is received during a predetermined timeout period in 1 1 16.

[0083] If a signal is received during the predetermined timeout period in 1 1 16, then the 3D g!asses set a synchronization error condition in 1 1 18 and exit. Alternatively, if no signa! is received during the predetermined timeout period in 1 1 16, then the 3D glasses transiate the received signal to the corresponding synchronization protocol for the corresponding model of TV in 1 120 and then enter a RUN MODE in 1122.

[0084] Alternatively, if the 3D glasses determine that the received synchronization signal is not the default signal DEFAULT1 in 1102, then the 3D glasses determine if the received synchronization signal is for a first television model TV1 in 1 124.

[0085] If the 3D glasses determine that the received synchronization signal is for a first television mode! TV1 In 1 124, then the 3D glasses determine if no signal has been received within a predetermined timeout period in 1126 and 1 128, In an exemplary embodiment once the timeout period in 128 has expired, the 3D glasses determine if a pulse has been received in 1 130. if the 3D glasses determine that a pulse has been received in 1130, then the 3D glasses increment a bit count in 1 132.

[0086] In an exemplary embodiment, the 3D glasses then determine if the bit count is greater than two in 1134, If the 3D glasses then determine that the bit count is not greater than two in 1 134, then the 3D glasses wait during a predetermined time delay in 6936 and return to operation in 1130, Alternatively, if the 3D glasses determine that the bit count is greater than two in 1134, then the 3D glasses wait to see if no signal is received during a predetermined timeout period in 1 38.

[0087] If a signal is received during the predetermined timeout period in 1 138, then the 3D glasses set a synchronization error condition in 1 140 and exit. Alternatively, if no signal is received during the predetermined timeout period in 1 138, then the 3D glasses translate the recetved signal to the corresponding synchronization protocol for the corresponding model of TV in 1 142 and then enter a RUN MODE in 1 144. 092847.001543

[0088] Alternatively, if the 3D glasses determine that the received synchronization signal is not for the first television model TV1 in 1124, then the 3D glasses determine if the received synchronization signal is for a second television model TV2 in 1146,

[0089] If the 3D glasses determine that the received synchronization signal is for a second television model TV2 in 1146, then the 3D glasses determine if no signal has been received within a predetermined timeout period in 1148 and 1150. in an exemplary embodiment, once the timeout period in 1150 has expired, the 3D glasses determine if a pulse has been received in 1 152. if the 3D glasses determine that a pulse has been received in 1152, then the 3D glasses increment a bit count in 1154.

[0090] In an exemplary embodiment, the 3D glasses then determine if the bit count is greater than four in 1158. if the 3D glasses then determine that the bit count is not greater than four in 1156, then the 3D glasses wait during a predetermined time delay in 1158 and return to operation in 1152. Alternatively, if the 3D glasses determine that the bit count is greater than four in 1158, then the 3D glasses wait to see if no signal is received during a predetermined timeout period in 1180.

[0091] If a signal is received during the predetermined timeout period in 1160, then the 3D glasses set a synchronization error condition in 1162 and exit. Alternatively, if no signal is received during the predetermined timeout period in 1160, then the 3D glasses translate the received signal to the corresponding synchronization protocoi for the corresponding model of TV in 1184 and then enter a RUN MODE in 1166.

[0092] Alternatively, if the 3D glasses determine that the received synchronization signal is not for the second television model TV2 in 1146, then the 3D glasses determine if the received synchronization signa! is for a third television model TV3 in 1168.

[0093] If the 3D glasses determine that ihe received synchronization signai is for a third television model TV3 in 1168, then the 3D glasses determine if no signal has been received within a predetermined timeout period in 1170 and 1172. in an exemplary embodiment, once the timeout period in 1172 has expired, the 3D glasses determine if 092847.001543 a pulse has been received in 1174. If the 3D glasses determine that a pulse has been received in 1174. then the 3D giasses increment a bit count in 1176.

[0094] In an exemplary embodiment, the 3D glasses then determine if the bit count is greater than one in 1178. if the 3D glasses then determine that the bit count is not greater than one in 1178. then the 3D giasses wait during a predetermined time delay in 1180 and return to operation in 1174. Alternatively, if the 3D giasses determine that the bit count is greater than one in 1178, then the 3D glasses wait during a predetermined timeout period in 1182. The 3D giasses then determine if a signal has been received during a predetermined timeout period in 184.

[0095] If a signal is received during the predetermined timeout period in 1184, then the 3D glasses wait during a predetermined timeout period in 1188. The 3D glasses then determine if no signal has been received during a predetermined iimeout period in 1188. If a signal Is received during the predetermined timeout period in 1188, then the 3D glasses set a synchronization error condition in 1190 and exit. Alternatively, if no signal is received during the predetermined timeout period in 1188. then the 3D glasses translate the received signal to a corresponding command to close the left shutter of the 3D glasses in 1192 and then enter a RUN MODE in 1194.

[0096] Alternatively, if no signal is received during the predetermined timeout period in 1184, then the 3D glasses determine if a signal is received during a predetermined timeout period in 1196, if a signal is received by the 3D glasses during the predetermined timeout period in 1196, then the 3D glasses wait during a predetermined timeout period in 1198. The 3D glasses then determine if no signal has been received during a predetermined timeout period in 1200. If a signal is received during the predetermined iimeout period in 1188, then the 3D glasses set a synchronization error condition in 1202 and exit. Alternatively, if no signal is received during the predetermined timeout period in 1200, then the 3D glasses translate the received signal to a corresponding command to open the left shutter of the 3D giasses in 1204 and then enter a RUN MODE in 1206. 092847.001543

[0097] Alternatively, if no signai is received during the predetermined timeout period in 1 196, then the 3D glasses determine if a signai is received during a predetermined timeout period in 1208. If a signal is received by the 3D giasses during the predetermined timeout period in 1208, then the 3D giasses wait during a predetermined timeout period in 1210, The 3D glasses then determine if no signai has been received during a predetermined timeout period in 1212. If a signai is received during the predetermined timeout period in 1212, then the 3D giasses set a synchronization error condition in 1214 and exit. Alternatively, if no signal is received during the predetermined timeout period in 1212, then the 3D glasses translate the received signal to a corresponding command to close the right shutter of the 3D giasses in 1216 and then enter a RUN MODE in 1218.

[0098] Alternatively, if no signai is received during the predetermined timeout period in 1208, then the 3D giasses wait during a predetermined timeout period in 1222. The 3D glasses then determine if a signal is received during a predetermined timeout period in 1224. If a signai is received by the 3D glasses during the predetermined timeout period in 1224, then the 3D giasses set a synchronization error condition in 1226 and exit. Alternatively, if no signai is received during the predetermined timeout period in 1224, then the 3D glasses translate the received signal to a corresponding command to open the right shutter of the 3D giasses in 1228 and then enter a RUN MODE in 1230.

[0099] Alternatively, if the 3D glasses determine that the received synchronization signal is not for the third television mode! TVS in 1168, then the 3D glasses determine if the received synchronization signai is for a fourth television model TV4 in 1232.

[00100] If the 3D giasses determine that the received synchronization signai is for a fourth television modei TV4 in 1232, then the 3D glasses determine if a signal has been received in 1234. If the 3D glasses determine that a signai has been received in 1234, then the 3D glasses determine if a pulse has been received in 1236. If the 3D glasses determine that a puise has not been received in 1236, then the 3D glasses determine if a predetermined timeout has expired in 1238. If the 3D glasses determine that the predetermined timeout has not expired in 1238, then operation continues in 1236. 092847.001543

[00101] Alternatively, if the 3D giasses determine that a puise has been received in 1236, then the 3D glasses measure the height and width of the puise in 1240. The 3D glasses then determine if the pulse is ok in 1242. If the 3D glasses determine that the pulse is not ok in 1242, then the 3D glasses increment a bad pulse count in 1244 and then determine if the bad pulse count equals a predetermined target value in 1246. If the 3D glasses determine that the bad pulse count is not equal to the predetermined target value in 1246. then operation continues in 1236.

[00102] Alternatively, if the 3D glasses determine that the pulse is ok in 1242, then the 3D glasses increment a good pulse count in 1248 and then determine if the good pulse count equals a predetermined target value in 1250. if the 3D glasses determine that the good pulse count is not equal to the predetermined target value in 1250, then operation continues in 236.

[00103] Alternatively, if the 3D giasses determine that the good pulse count is equal to the predetermined target vaiue in 1250, then the 3D giasses determine if more pulses are received within a predetermined timeout period in 1252, If the 3D glasses determine that more pulses were not received within a predetermined timeout period in 1252, then the 3D glasses operate the left and right shutters as a function of the pulses received In 1254.

[00104] Alternative Sy, if the 3D glasses determine that the received synchronization signal is not for the fourth television model TV4 in 1232, then the 3D glasses determine if the received synchronization signal is for a fifth television model TV5 in 1256.

[00105] if the 3D glasses determine that the received synchronization signal is for a fifth television mode! TV4 in 1256, then the 3D glasses determine if a signal has been received in 1258. If the 3D glasses determine that a signal has been received in 1258, then the 3D glasses determine if a pulse has been received in 1260. If the 3D glasses determine that a pulse has not been received in 1260, then the 3D giasses determine if a predetermined timeout has expired in 1262. f the 3D giasses determine that the predetermined timeout has not expired in 1262, then operation continues in 1260. 092847.001543

[00106] Alternatively, if the 3D glasses determine that a pulse has been received in 1260_: then the 3D glasses measure the height and width of the pulse in 1264. The 3D glasses then determine if the pulse is ok in 1266. If the 3D glasses determine that the pulse is not ok in 1286, then the 3D glasses increment a bad pulse count in 1268 and then determine if the bad pulse count equals a predetermined target value in 1270. If the 3D glasses determine that the bad pulse count is not equal to the predetermined target value in 1270, then operation continues in 1260.

[00107] Alternatively, if the 3D glasses determine that the pulse is ok in 1266, then the 3D glasses increment a good pulse count in 1272 and then determine if the good pulse count equals a predetermined target value in 1274. if the 3D glasses determine that the good pulse count is not equal to the predetermined target value in 1274, then operation continues in 1260.

[00108] Alternatively, if the 3D glasses determine that the good pulse count is equal to the predetermined target vaiue in 1274, then the 3D glasses determine if more pulses are received within a predetermined timeout period in 1276, If the 3D glasses determine that more pulses were not received within a predetermined timeout period in 1276, then the 3D glasses operate the left and right shutters as a function of the pulses received In 1278.

[00109] Alternatively, if the 3D glasses determine that the received synchronization signal is not for the fifth television model TVS in 1256, then the 3D glasses determine if the received synchronization signal is for a sixth television model TV6 in 1230.

[001 10] If the 3D glasses determine that the received synchronization signal is not for the sixth television mode! TVS in 1280, then the 3D glasses operate the left and right shutters using an associated protocol in 1282.

[001 1 1] Alternatively, if the 3D glasses determine that the received synchronization signal is not for the sixth television model TV5 in 1280, then the 3D glasses determine if the received synchronization signal is for a default synchronization protocol DEFAULT2 in 1284. 092847.001543

[00112] If the 3D glasses determine that the received synchronization signal is for a default synchronization protocol DEFAULT2 in 1284, then the 3D glasses operate the left and right shutters using an associated protocol in 1286.

[00113] Referring now to Fig, 12, an exemplary embodiment of a system 7100 for viewing 3D images is substantially identical to the system 100, except as noted be!ow. fn an exemplary embodiment, the system 1200 includes a display device 7102 that is operably coup!ed to a display radio frequency ("RF") transmitter and sensor 1204.

[00114] In an exemplary embodiment, the display device 1202 may, for example, be a television, movie screen, liquid crystal display, computer monitor, or other display device, adapted to display, for example, left and right images intended for viewing by the left and right eyes, respectiveiy, of a user of the system 1200. In an exemplary embodiment, a display RF transmitter and sensor 1204 is operably coupled to the display device 1202 that transmits signals to the glasses RF transmitter and transceiver 120 of the 3D glasses 106 for controlling the operation of the 3D glasses 106. in an exemplary embodiment, the display RF transmitter and sensor 1204 is adapted to transmit radio frequency signals such as, but not limited to, Bluetooth® signals, Zigbee® signals, or some other radio frequency signal. Because radio frequency signals are used, two-way communications can occur between the display RF transmitter and sensor 7104 and the glasses RF transmitter and transceiver 120, Furthermore, in an exemplary embodiment, the signal transmitter 1204 may transmit one or more signals at the same time, which may or may not include the same information. Zigbee® is a registered trademark of the Zigbee Alliance, an association of companies headquartered in San Ramon, CA.

[001 5] Those skilled in the art will appreciate that the each of the display RF transmitter and sensor 1204 and the glasses RF transmitter and transceiver 120 may be reconfigured as a distinct transmitter component and a distinct sensor component. In other words, for example, rather than including a combined display RF transmitter and sensor 1204, the display device may be operativeSy connected to a display RF transmitter and a display RF sensor. 092847.001543

[001 16] In an exemplary embodiment, the 3D glasses 108 may include a memory 1 18b operab!y coupled to the CPU 1 18 that may include a look up table that includes user configurations for the 3D glasses 106. in this manner, the operating parameters of the 3D glasses 106 may be configured based on the requirements of the user (e.g., configured to based on unique characteristics of the user's vision). Examples of operating parameters of the 3D glasses 106 include, but are not limited to, transition speed, accommodations for prescription glasses, ambient brightness settings, and intensity of 3D effects.

[001 17] Referring to Fig. 13, in an exemplary embodiment, the system 1200 impiements a method 1300 for performing two-way communications between a display device 1202 and 3D glasses 106. In an exemplary embodiment, the 3D glasses 106 of the system 1200 automatically detects a use of the 3D glasses 106 while 2D images are displayed on the display device in 1302. The 3D glasses 106 may automatically detect the use by determining a sensor {e.g., button press, pressure sensor in nose area, proximity sensor, etc.) on the 3D glasses 106 has been activated.

[001 18] In 1304, the display device 1202 receives an RF signal from 3D glasses 106. In an exemplary embodiment, the RF signal may include a request to initiate a 3D mode of operation of the display device. Further, the RF signal may be transmitted using a RF protocol such as, but not limited to, a Bluetooth® protocol, a Zigbee® protocol, or some other RF protocol.

[001 19] in 1306, the display device 1202 switches from displaying the 2D images to displaying 3D images in response to the RF signal of 1304. Those skilled in the art will appreciate that other display device actions may be triggered using RF signals from the 3D glasses 104. For example, the display device 1202 may be configured to automatically switch back to a 2D mode of operation when it is detected that the use of all active 3D glasses 106 has ended, in another example, the 3D glasses 106 may send RF signals to adjust othe operating parameters of the display device 1202 {e.g., adjust the vo!ume; adjust display settings such as brightness, contrast, etc.; adjust 3D image display settings; etc.). 092847.001543

[00120] In 1308, upon switching to a 3D mode of operation, the display device 1202 transmits a synchronization signal to the 3D glasses 106 for synchronizing their operation.

[00121] Optionally, in 1310, the display device 1202 may send a configuration RF signal to the 3D glasses 106 for adjusting the operating parameters of the 3D glasses. Examples of operating parameters of 3D glasses 106 include, but are not limited to, transition speed, accommodations for prescription glasses, ambient brightness settings, and intensity of 3D effects. In an exemplary embodiment, the operating parameters of the 3D g!asses 106 are selected by a user using a configuration application executing on the display device 1202. In this case, the configuration RF signal is transmitted based on selections by the user in the configuration application.

[00122] in 1312, a determination is made as to whether the use of all active 3D glasses 106 has ended. Specifically, the display device 1202 may be configured to determine whether a request to enter a 2D mode of operation has been received from all active 3D giasses.

[00123] If the use of ail active 3D glasses 106 has ended, the display device 1202 may automatically enter the 2D mode of operation in 1314. In this case, the display device 1202 may also stop transmitting the synchronization signal. If the use of ail active 3D glasses 106 has not ended, the display 1202 remains in the 3D mode of operation and continues to transmit the synchronization signal in 1308,

[00124] Referring to Fig. 14, in an exemplary embodiment, the system 1200 implements a method 1400 for performing two-way communications between a display device 1202 and 3D glasses 106. In an exemplary embodiment, the display device 1202 is initially in a 2D mode of operation for displaying 2D images.

[00125] In 1402, the 3D glasses 106 automatically detect a use by determining a sensor {e.g., button press, pressure sensor in nose area, proximity sensor, etc.) on the 3D glasses 104 has been activated. For example, the sensor may be activated as the user piaces the 3D giasses on the user's face. 092847.001543

[00126] in 1404, a determination is made as to whether the 3D glasses 106 are in a standby mode. When in standby mode_: the 3D giasses 106 may provide limited functionality (e.g., proximity sensor) in order to conserve battery life. If the 3D glasses 106 are in a standby mode, the 3D glasses 106 may be powered on in response to detecting the use of the 3D giasses 106 in 1406. If the glasses are not in a standby mode, the process proceeds to 1408.

[00127] Once the 3D glasses 108 are detected to be in use, the 3D glasses may assume that the user wishes for the display device 1202 to switch to a 3D mode of operation. Accordingly, in 1408, the 3D glasses 106 send an RF signal for a 3D mode of operation to the display device 1202. In an exemplary embodiment, the RF signal may include a request to initiate the 3D mode of operation of the display device 1202. Further, the RF signal may be transmitted using a RF protocol such as, but not limited to, a Bluetooth® protocol, a Ztgbee® protocol, or some other RF protocol.

[00128] in 1410, the 3D glasses 106 receives a synchronization signal from the display device 1202 for synchronizing their operation. In this case, once the display device 1202 switches to the 3D mode of operation, the display device 1202 may begin providing the synchronization signal to the 3D glasses 106.

[00129] Optionally, in 1412, the 3D glasses 106 may receive a configuration RF signal from the display device 1202 for adjusting the operating parameters of the 3D glasses. In this case, the operating parameters of the 3D glasses 106 are selected by a user using a configuration application executing on the disp!ay device 1202.

[00130] If a configuration RF signal is received from the display device 1202, the 3D glasses 106 may configure its operating parameters based on the 3D signal in 1414. For example, the 3D glasses 106 may begin accommodating for prescription glasses or ambient light based on selections of the user on the display device 1202.

[00131] In 1416, the 3D glasses 106 automatically detect a removal of the 3D glasses by determining the sensor (e.g., button press, pressure sensor in nose area, proximity sensor, etc.) has been further activated. For example, the 3D glasses may be equipped 092847.001543 with a proximity sensor, where a removal is detected when the sensors faii to detect any nearby objects,

[00132] Once the 3D glasses 108 are determined to be removed, the 3D glasses may assume that the user wishes for the display device 1202 to switch to a 2D mode of operation. Accordingly, in 1418, the 3D glasses 106 send an RF signal for a 2D mode of operation to the display device 1202. In an exemplary embodiment, the RF signal may include a request to initiate the 2D mode of operation of the display device 1202.

100133] Optionally, in 1420, the 3D glasses 106 ma be powered down in response to detecting the removal of the 3D glasses 106. For example, in response to determining the 3D glasses 104 have been removed, the 3D glasses 106 may power down the 3D glasses 106 after a timeout period (e.g., 2 minutes) has expired. In this example, the 3D glasses 106 may automatically power down and enter a standby mode with limited functionality.

[00134] In an exemplary embodiment, the system 1200 and/or methods 1300 and 1400 may include, or omit, one or more aspects of one or more of the exemplary embodiments.

[00135] A computer readable program product stored on a tangible storage media may be used to facilitate any of the preceding embodiments. For example, embodiments of the invention may be stored on a computer readable medium such as an optical disk (e.g., compact disc, digital versatile disc, etc.), a diskette, a tape, a file, a flash memory card, or any other computer readable storage device, in this example, the execution of the computer readable program product may cause a processor to perform the methods discussed above with respect to FIG. 13 and 14.

[00136] A system for performing two-way communications that includes a display device configured to switch from a 2D mode of operation to a 3D mode of operation in response to an RF signal, the display device including a display radio frequency (RF) sensor configured to receive the RF signal from 3D shutter glasses, where the RF signal includes a request to initiate a three-dimensional (3D) mode of operation of the 092847.001543 display device and a display RF transmitter configured to, in response to the RF sensor receiving the RF signal transmit a synchronization signal to the 3D shutter glasses: and the 3D shutter glasses including a glasses RF transmitter configured to send the RF signal to the display radio frequency sensor and a glasses RF sensor configured to receive the synchronization signal from the display RF transmitter. In an exemplary embodiment the 3D shutter glasses sends the RF signal in response to automatically detecting a use of the 3D shutter glasses by a user. In an exemplary embodiment, the use of the 3D shutter glasses is detected based on an event selected from a group consisting of a button press of the 3D shutter glasses, ear pieces of the 3D shutter glasses opening, pressure detected in a nose area of the 3D shutter glasses, and a proximity switch of the 3D shutter glasses, In an exemplary embodiment, the display RF transmitter is further configured to send a configuration RF signal including user configurations to the 3D shutter glasses, where the user configurations are used to update operating parameters of the 3D shutter glasses. In an exemplary embodiment, the operating parameters include at least one parameter selected from a group consisting of transition speed, accommodations for prescription glasses, ambient brightness settings, and intensity of 3D effects. In an exemplary embodiment, the glasses RF sensor is further configured to receive a configuration RF signal including user configurations for the 3D shutter glasses from the display device, where the 3D shutter glasses is further configured to update operating parameters of the 3D shutter glasses based on the user configurations.

[00137] A computer readable program product stored on a tangible storage media for performing two-way communications with three dimensional (3D) shutter glasses, the program product when executed causing a computer processor to display two- dimensional (2D) images on a display, receive a radio frequency (RF) signal from the 3D shutter glasses, where the RF signal includes a request to initiate a three- dimensional (3D) mode of operation of the display, and in response to receiving the RF signal, display 3D images on the display and transmit a synchronization signal to the 3D shutter glasses, in an exemplary embodiment, the 3D shutter glasses sends the RF signal in response to automatically detecting a use of the 3D shutter glasses by a user, in an exemplary embodiment, the use of the 3D shutter glasses is detected 092847.001543 based on an event selected from a group consisting of a button press of the 3D shutter glasses, ear pieces of the 3D shutter glasses opening, pressure detected in a nose area of the 3D shutter glasses, and a proximity switch of the 3D shutter glasses, in an exemplary embodiment, the program product when executed further cause the processor to send a configuration RF signal including user configurations to the 3D shutter glasses, where the user configurations are used to update operating parameters of the 3D shutter glasses. In an exemplary embodiment, the operating parameters include at least one parameter selected from a group consisting of transition speed, accommodations for prescription glasses, ambient brightness settings, and intensity of 3D effects,

[00138] A computer readable program product stored on a tangible storage media for performing two-way communications with a display device, the program product when executed causing a computer processor to send a radio frequency (RF) signal including a request to initiate a three-dimensional (3D) mode of operation to the display device, where in response to receiving the RF signal, the display device switches from displaying two-dimensional (2D) images to displaying 3D images and receive a synchronization signal for the 3D images from the display device. In an exemplary embodiment, the program; product when executed further causes the processor to receive a configuration RF signal including user configurations for 3D shutter glasses from the display device and updating the operating parameters of the 3D shutter glasses based on the user configurations.

[00139] It is understood that variations may be made in the above without departing from the scope of the invention. While specific embodiments have been shown and described, modifications can b made by one skilled in the art without departing from the spirit or teaching of this invention. The embodiments as described are exemplary only and are not limiting. Many variations and modifications are possible and are within the scope of the invention. Furthermore, one or more elements of the exemplary embodiments may be omitted, combined with, or substituted for, in whole o in part, one or more elements of one or more of the other exemplary embodiments. Accordingly, the scope of protection is not limited to the embodiments described, but is only limited 092847.001543 by the claims thai follow, the scope of which shall include all equivalents of the subject matter of the claims.

Claims

1. A method of performing two-way communications with three dimensional (3D) shutter glasses, comprising;

displaying two-dimensional (2D) images on a disp!ay;

receiving a radio frequency (RF) signal from the 3D shutter glasses, wherein the RF signal comprises a request to initiate a three-dimensional (3D) mode of operation of the dispiay; and

in response to receiving the RF signal;

displaying 3D images on the dispiay; and

transmitting a synchronization signal to the 3D shutter glasses.

2. The method of claim 1 , wherein the 3D shutter glasses sends the RF signal in response to automatically detecting a use of the 3D shutter glasses by a user,

3. The method of claim 2, wherein the use of the 3D shutter glasses is detected based on an event selected from a group consisting of a button press of the 3D shutter glasses, ear pieces of the 3D shutter glasses opening, pressure detected in a nose area of the 3D shutter glasses, and a proximity switch of the 3D shutter glasses.

4. The method of claim 1 , further comprising:

sending a configuration RF signal comprising user configurations to the 3D shutter glasses, wherein the user configurations are used to update operating parameters of the 3D shutter glasses.

5. The method of claim 4, wherein the operating parameters comprise at least one parameter seiected from a group consisting of transition speed, accommodations for prescription glasses, ambient brightness settings, and intensity of 3D effects.

6. A method of performing two-way communications with a display device, comprising: sending a radio frequency (RF) signal comprising a request to initiate a three- dimensional (3D) mode of operation to the display device, wherein in response to receiving the RF signal, the display device switches from displaying two-dimensional (2D) images to displaying 3D images; and

receiving a synchronization signal for the 3D images from the displa device,

7. The method of claim 8, further comprising:

receiving a configuration RF signal comprising user configurations for 3D shutter glasses from the display device; and

updating the operating parameters of the 3 shutter glasses based on the user configurations.

8. A display device comprising:

a radio frequency (RF) sensor configured to receive an RF signal from 3D shutter glasses, wherein the RF signal comprises a request to initiate a three-dimensional (3D) mode of operation of the display device: and

an RF transmitter configured to, in response to the RF sensor receiving the RF signal, transmit a synchronization signal to the 3D shutter glasses,

wherein the display device is configured to switch from a 2D mode of operation to a 3D mode of operation in response to the RF sensor receiving the RF signal,

9. The display device of claim 8, wherein the 3D shutter glasses sends the RF signal in response to automatically detecting a use of the 3D shutter glasses by a user,

10. The display device of claim 9, wherein the use of the 3D shutter glasses is detected based on an event selected from a grou consisting of a button press of the 3D shutter glasses, ear pieces of the 3D shutter glasses opening, pressure detected in a nose area of the 3D shutter glasses, and a proximity switch of the 3D shutter glasses.

11 The display device of claim 8_; wherein the RF transmitter is further configured to: send a configuration RF signal comprising user configurations to the 3D shutter glasses, wherein the user configurations are used to update operating parameters of the 3D shutter glasses,

12, The display device of claim 11 , wherein the operating parameters comprise at least one parameter selected from a group consisting of transition speed,

accommodations for prescription giasses, ambient brightness settings, and intensity of 3D effects.

13, Three dimensional (3D) shutter glasses comprising;

a radio frequency (RF) transmitter configured to send an RF signal comprising a request to initiate a three-dimensional (3D) mode of operation to the display device; and an RF sensor configured to receive a synchronization signal for the 3D images from the display device,

wherein in response to receiving the RF signal, the display device switches from displaying two-dimensional (2D) images to displaying 3D images,

14. The 3D shutter glasses of claim 13, wherein the RF sensor is further configured to:

receive a configuration RF signal comprising user configurations for the 3D shutter glasses from the display device,

wherein operating parameters of the 3D shutter glasses are updated based on the user configurations,

15. A system for performing two-way communications, comprising:

a display device configured to switch from a two dimensional (20) mode of operation to a three dimensional (3D) mode of operation in response to a radio frequency (RF) signal, the display device comprising:

a display RF sensor configured to receive the RF signal from 3D shutter glasses, wherein the RF signal comprises a request to initiate a three-dimensional (3D) mode of operation of the display device; and a display RF transmitter configured to, in response to the RF sensor receiving the RF signal, transmit a synchronization signai to the 3D shutter glasses; and the 3D shutter glasses comprising:

a glasses RF transmitter configured to send the RF signai to the display radio frequency sensor; and

a glasses RF sensor configured to receive the synchronization signal from the display RF transmitter.

18. The system of claim 15, wherein the 3D shutter glasses sends the RF signal in response to automatically detecting a use of the 3D shutter glasses by a user.

17. The system of claim 16, wherein the use of the 3D shutter glasses is detected based on an event selected from a group consisting of a button press of the 3D shutter glasses, ear pieces of the 3D shutter glasses opening, pressure detected in a nose area of the 3D shutter glasses, and a proximity switch of the 3D shutter glasses.

18. The system of claim 15, wherein the display RF transmitter is further configured to:

send a configuration RF signal comprising user configurations to the 3D shutter glasses, wherein the user configurations are used to update operating parameters of the 3D shutter glasses. 9. The system of claim 18, wherein the operating parameters comprise at least one parameter selected from a group consisting of transition speed, accommodations for prescription glasses, ambient brightness settings, and intensity of 3D effects.

21. The system of claim 15, wherein the glasses RF sensor is further configured to: receive a configuration RF signal comprising user configurations for the 3D shutter glasses from the display device,

wherein the 3D shutter glasses is further configured to update operating parameters of the 3D shutter glasses based on the user configurations.

22. A computer readable program product stored on a tangible storage media for performing two-way communications with three dimensional (3D) shutter glasses, the program product when executed causing a computer processor to:

display two-dimensional (2D) images on a display;

receive a radio frequency (RF) signal from the 3D shutter glasses, wherein the RF signal comprises a request to initiate a three-dimensional (3D) mode of operation of the display; and

in response to receiving the RF signal:

display 3D images on the display; and

transmit a synchronization signal to the 3D shutter glasses.

23. The program product of claim 22, wherein the 3D shutter glasses sends the RF signai in response to automatically detecting a use of the 3D shutter glasses by a user

24. The program product of claim 23, wherein the use of the 3D shutter glasses is detected based on an event selected from a group consisting of a button press of the 3D shutter glasses, ear pieces of the 3D shutter glasses opening, pressure detected in a nose area of the 3D shutter glasses, and a proximity switch of the 3D shutter glasses.

25. The program product of claim 21 , the program product when executed further causing the processor to:

send a configuration RF signal comprising user configurations to the 3D shutter glasses, wherein the user configurations are used to update operating parameters of the 3D shutter glasses.

26. The program product of claim 25, wherein the operating parameters comprise at least one parameter selected from a group consisting of transition speed,

accommodations for prescription glasses, ambient brightness settings, and intensity of 3D effects.

27. A computer readable program product stored on a tangible storage media for performing two-way communications with a display device, the program product when executed causing a computer processor to;

send a radio frequency (RF) signal comprising a request to initiate a three- dimensional (3D) mode of operation to the display device, wherein in response to receiving the RF signal, the display device switches from displaying two-dimensional (2D) images to displaying 3D images; and

receive a synchronization signal for the 3D images from the display device.

28, The program product of claim 27, the program product when executed further causing the processor to:

receive a configuration RF signal comprising user configurations for 3D shutter glasses from the display device; and

update the operating parameters of the 3D shutter glasses based on the user configurations.