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1. 发明专利

AU3146293A METHOD AND APPARATUS FOR PROVIDING MESSAGE INFORMATION TO SUBSCRIBERS IN A CABLE TELEVISION SYSTEM 未知
公开(公告)号：AU3146293A
公开(公告)日：1993-06-28
申请号：AU3146293
申请日：1992-11-30
申请人： SCIENTIFIC ATLANTA INC
发明人： ROBERT O. BANKER , KINNEY C. BACON , JULIUS B BAGLEY
IPC分类号： H04N7/16 , H04N21/4786 , H04N21/4788
摘要： A subscriber terminal apparatus for a television in an in-band subscription television system is provided. The subscriber terminal includes a receiver for receiving a television signal including video, audio, ana data information. A selector selects a channel of the television signal. A memory stores a plurality of barker screens providing messages regarding one or more channels of the television signal. An on-screen display control circuit controls the display of the barker screens on the television. A processor retrieving a barker screen from the memory supplies the retrieved screen to the on-screen display control circuit if the barker screen provides a message regarding a selected channel. Barker screen information may also be obtained from a dedicated data channel or a six megahertz video barker channel.

2. 发明专利

AU3222693A METHOD AND APPARATUS FOR TUNING DATA CHANNELS IN A SUBSCRIPTION TELEVISION SYSTEM HAVING IN-BAND DATA TRANSMISSIONS 未知
公开(公告)号：AU3222693A
公开(公告)日：1993-06-28
申请号：AU3222693
申请日：1992-11-30
申请人： SCIENTIFIC ATLANTA INC
发明人： ROBERT O. BANKER , KINNEY C. BACON , JULIUS B BAGLEY
IPC分类号： H04N7/16
摘要： A subscriber terminal apparatus for a television in an in-band subscription television system is provided. The subscriber terminal is adapted to receive a television signal including video, audio, and data information. A tuner of the subscriber terminal tunes channels of the television signal and an on-screen display control circuit selectively provides a display of characters on the television. A tuner control tunes the tuner to a channel having in-band data when the display of characters is provided on the television.

3. 发明专利

AU3146393A METHOD AND APPARATUS FOR PROVIDING AN ON-SCREEN USER INTERFACE FOR A SUBSCRIPTION TELEVISION TERMINAL 未知
公开(公告)号：AU3146393A
公开(公告)日：1993-06-28
申请号：AU3146393
申请日：1992-11-30
申请人： SCIENTIFIC ATLANTA INC
发明人： ROBERT O. BANKER , KINNEY C. BACON , JULIUS B BAGLEY
IPC分类号： H04N5/445 , H04N7/16 , H04N21/47 , H04N21/472 , H04N21/482
摘要： Apparatus for providing a user friendly interface to a subscription television terminal comprises a key pad arranged into a plurality of key groupings and an on-screen display controller for generating a plurality of screens for display on an associated television receiver. Five such key groupings are segregated from one another and comprise function keys, initialization keys, channel keys, audio keys and digit keys. The digit keys may be most conveniently arranged in a two dimensional matrix corresponding to a key pad of a conventional tone dialing telephone. Each of the other key groupings may be arranged linearly and differentiated by the use of color or boxes. A method of initializing the cable television terminal comprises the steps of generating a display of a menu structure, actuating the movement of a cursor in one direction through choices presented by a menu by use of a cursor key, and actuating a selection of a menu choice via actuation of a select key. For example, a sleep timer may be implemented in a subscription television terminal for turning off power to an associated television set after a predetermined period of time. Parental control of received channels can be established such that only those having knowledge of a particular code may view the parentally controlled channel. Other features of a terminal in accorance with the invention include messaging, establishing a favorite channel list, pay-per-view, program timing, and terminal control.

4. 发明专利

AU3146493A METHOD AND APPARATUS FOR DISPLAYING CHANNEL IDENTIFICATION INFORMATION 未知
公开(公告)号：AU3146493A
公开(公告)日：1993-06-28
申请号：AU3146493
申请日：1992-11-30
申请人： SCIENTIFIC ATLANTA INC
发明人： ROBERT O. BANKER , KINNEY C. BACON , JULIUS B BAGLEY
IPC分类号： H04N5/445 , H04N5/50 , H04N7/081 , H04N7/088 , H04N21/41 , H04N21/472 , H04N21/485 , H04N21/488
摘要： A subscriber terminal includes a receiver for receiving a television signal including video, audio, and data information. A channel of the television signal may be selected for display on the television. A memory stores channel identification information such as channel identifiers. The channel identifiers include at least one display character. A processor establishes a relationship between channel identification information and channel numbers associated with channels of the television signal. An on-screen display control circuit controls the display of character information on the television and has the capability of overlaying the channel number and the channel identification information on the video portion of a selected channel displayed on the television for a predetermined period of time. Program identification information such as program titles may also be displayed. Alternatively or additionally, the channel identification information may be displayed on a display such an LED display of a subscriber terminal.

5. 发明专利

AU2227592A SYSTEM FOR BROADBAND DESCRAMBLING OF SYNC SUPPRESSED TELEVISION SIGNALS 未知
公开(公告)号：AU2227592A
公开(公告)日：1993-01-12
申请号：AU2227592
申请日：1992-06-12
申请人： SCIENTIFIC ATLANTA INC
发明人： JAMES E RAISER , JULIUS B BAGLEY , MICHAEL T HAYASHI , MICHAEL P. HARNEY , JAMES O. FARMER , KINNEY C. BACON , ALEX M. COOK JR.
IPC分类号： H04N7/171
摘要： A television system having sync suppression scrambling and descrambling which includes in band and out of band signaling methods. The in band signaling method modulates the IF sound carrier of a premium video channel with timing and data pulses while the out of band signaling method modulates the previously modulated IF sound on a separate carrier onto a separate out of band data carrier. The in band signaling method uses a descrambler which tunes a channel before demodulating the timing and data pulses from the sound carrier while the out of band signaling method tunes a selected data carrier to demodulate the timing and data pulses. In both methods, the timing pulses are used to restore the levels of the synchronization pulses in the sync suppressed video signal, and thus descramble the signal, while the data pulses are used for addressable messaging to the descrambler including authorization. The out of band descrambler provides broadband sync restoration for a particular channel and thus does not need a broadband tuner for the video signal.

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