WO1995007003A1 - Transmission of data using full frame video - Google Patents

Transmission of data using full frame video Download PDF

Info

Publication number
WO1995007003A1
WO1995007003A1 PCT/US1994/009857 US9409857W WO9507003A1 WO 1995007003 A1 WO1995007003 A1 WO 1995007003A1 US 9409857 W US9409857 W US 9409857W WO 9507003 A1 WO9507003 A1 WO 9507003A1
Authority
WO
WIPO (PCT)
Prior art keywords
video
program
information
data
signals
Prior art date
Application number
PCT/US1994/009857
Other languages
French (fr)
Inventor
Henry C. Yuen
Original Assignee
Yuen Henry C
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US11757993A priority Critical
Priority to US08/117,579 priority
Application filed by Yuen Henry C filed Critical Yuen Henry C
Publication of WO1995007003A1 publication Critical patent/WO1995007003A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/458Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • H04N21/4583Automatically resolving scheduling conflicts, e.g. when a recording by reservation has been programmed for two programs in the same time slot
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/433Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334Recording operations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/435Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/472End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47214End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84Generation or processing of descriptive data, e.g. content descriptors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry
    • H04N5/445Receiver circuitry for displaying additional information
    • H04N5/44543Menu-type displays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry
    • H04N5/445Receiver circuitry for displaying additional information
    • H04N5/44582Receiver circuitry for displaying additional information the additional information being controlled by a remote control apparatus
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/765Interface circuits between an apparatus for recording and another apparatus
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/78Television signal recording using magnetic recording
    • H04N5/782Television signal recording using magnetic recording on tape
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/08Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0887Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of programme or channel identifying signals

Abstract

An electronic program guide is transmitted, along with a displayable video program (412), as an encoded signal on a plurality of video lines of a broadcasted video signal (400). The data is broadcasted on one field per two video frames, or less frequently, to thereby create a video image on a screen that is not detectable by a human viewer. Accordingly, the displayed data does not interfere with the displayable video program. The program guide is a listing of television programs that are to be broadcasted during a predetermined time period for at least one television channel. Advertising, explanatory information, or other auxiliary video information may be transmitted in the video signal.

Description

TRANSMISSION OF DATA USING FULL FRAME VIDEO

Field of the Invention

This invention relates to broadcasting television signals, and, more particularly, to a transmission system for encoding data in the video portion of a television signal.

Background of the Invention

Presently, a viewer of television receives a television programming list in either a magazine format, such as TV Guide, or from daily or weekly listings in a newspaper. The viewer must then read through several pages of listings to locate and determine programs that the viewer intends to view or record. If he decides to record the program, he must program a video cassette recorder (VCR), using a remote controller or buttons on the body of the VCR, by entering programming information or encoded numbers representative of such information. Currently, closed caption signals for the hearing impaired transmit in the

Vertical blanking interval (VBI) a text signal corresponding to the dialog of the characters in the corresponding video program. It has been proposed to broadcast electronic television program guides by encoding the guide data in the VBI of broadcasted video programs. Broadcasting data in the VBI over cable television systems presents problems. Unlike cable television, over the air systems broadcast video signals directly from a local broadcaster to a viewer's antenna for reception, without third party intervention. However, in cable television systems, which are becoming more predominant, a local cable company frequently strips off the VBI information provided by the broadcaster and replaces it with data of the cable company's own choosing. Because of the difficulty of controlling cable companies from stripping the data, the broadcasters face revenue losses from advertisers or other information providers because of the lost audiences of the messages in the VBI.

Experiments were run where the entire full frame visible portion of the video signal was used to send data. However, this required a limited experimental license from the Federal Communications Commission (FCC), because the broadcasted signal presents an annoyance to viewers who perceive the data as noise on the screen. Under these licenses, the FCC required the operator to first warn viewers, by both video and audio warnings, of the following data transmission and to inform them that there was nothing wrong with their receivers.

Using full frame video presents a problem during the periods in which data is transmitted. In particular, viewers are annoyed, because the received message appears as noise to the viewers. Accordingly, any large scale use of full frame video will probably be restricted to time periods or channels for which the viewing audience is small. This thereby restricts the timeliness and value of the transmitted data.

It is the object of the invention to have a video broadcast system that transmits data that a cable company will not strip. It is another object of the invention to transmit data that is not an annoyance to the viewer. It is a further object of the invention to provide data to the viewer in a timely manner.

It is yet another object of the invention to provide a program guide that is broadcasted to the user and which provides current scheduling and descriptive information that includes special events which are scheduled on short notice. It is a further object that the program guide be usable for timer programming a VCR with minimal interaction by the user so that the user finds time shifting of programs easier.

Summary of the Invention

In one embodiment, a microprocessor controller is coupled to a video signal decoder for decoding data, e.g., a television program guide, transmitted in the video image part of a video frame of a broadcast television signal. The decoded data is stored in a memory. The data is displayed on a video screen but it is displayed at such a rate that the image of the data is not perceivable by a viewer. The video data for the program guide comprises a program title, channel, date, time, length, encoded numbers, sort categories, and control and attribute codes. The program guide may be searched by one of several categories such as date, program type, and channel.

In another embodiment, auxiliary video information of a first program, such as the channel-date-time-length of a related second program, is broadcasted in the video frames of the first program. In response to a user input, the auxiliary video information is retrieved from the video frames and used for automatically setting a VCR to record the related second program.

In yet another embodiment, the auxiliary video information is text data relating to the first program. In this embodiment, the video system has means responsive to a user input for storing the text data in a memory so that it can be displayed at a selected time.

In still yet another embodiment, an input/output port is provided so that the user may connect the video system to a printer or other external device, such as an external memory. The auxiliary video information or program guide may be printed in hard copy.

Brief Description of the Drawings

The foregoing features of the present invention will be better understood in consideration of the following detailed description of certain preferred embodiments, taken in conjunction with the accompanying drawings in which: FIG. 1 is a block diagram of a video system that processes auxiliary video information recorded on broadcasted video images according to principles of the invention;

FIG. 2 illustrates an embodiment of a remote control unit for operating the video system of FIG. 1 ; FIG. 3 is a schematic diagram illustrating the interlaced scanning pattern on a screen of a conventional television receiver;

FIG. 4 is a schematic diagram illustrating the data encoded video image according to principles of the invention;

FIG. 5 is a timing diagram showing the level of the signals in the picture and data interval in the time interval 5-5 shown in FIG. 4;

FIG. 6 is a schematic view showing the format for the video data image packet recorded in the video;

FIG. 7 is a flowchart showing the steps employed in the operation of the video system according to principles of the invention; FIG. 8 shows the a menu of categories displayed upon its selection during the operation of the video system as shown in FIG. 7; and

FIG. 9 shows the Calendar-by-D.ate Menu displayed upon its selection in the category menu of FIG. 8.

Detailed Description

VIDEO SYSTEM

FIG. 1 is a block diagram of a video system that processes auxiliary video information recorded on broadcasted video images according to principles of the invention. A tuner 12 receives on a coaxial cable 18 a broadcast TV signal from either an antenna 14 or a cable TV box 16. Alternatively, the cable box 16 may receive signals from a satellite receiver system. The cable box 16 may also decipher encrypted video signals that the cable or carrier operator encrypts to prevent unauthorized viewing. The tuner 12 down converts the received broadcast video signal from one of several different video channels onto a common unused television channel, typically channel 3 or 4. The particular channel is not critical, and for the purposes of this discussion, channel 3 is used. The tuner 1 2 provides on a coaxial cable 20 the down converted signal to a video cassette recorder (VCR) 22. Alternatively, the tuner 12 may be in the VCR which is common in the majority of consumer VCRs for off-the-air recording. In this alternative, the cable 20 is a tap off an output port (not shown) of the VCR 22 and the cable 18 is coupled directly to the VCR.

The VCR 22 is a conventional videotape reader/recorder device and uses any one of many different recording technologies such as Beta, VHS, super VHS,

8 mm VHS-C, and the like. The technology and operation of a VCR are well understood in the art.

The tuner 12 also provides the down converted video signals to a VBI decoder 24 which decodes data recorded on the vertical blanking interval (VBI) of the received video signal, and to a VBI encoder 26, which encodes data onto the VBI of the video signal that is to be recorded on a video tape (not shown) in the VCR 22. In addition, the tuner 12 also provides the down converted signal to a video signal decoder 28 which detects and decodes data recorded on the video picture portion of the video signal as will be described in detail below in conjunction with FIGs. 3-5, and to a mixer 30 whose mixed output is provided on a line 32 to a video display 34. The video display 34 may be a television, a liquid crystal display, and the like. The video display 34 may also display data stored in the RAM 48 or commands entered through the remote control 38.

A microprocessor controller (shown as μP in Fig. 1 ) 36 controls the operation of the tuner 12, the VCR 22, the VBI decoder 24, the VBI encoder 26, the video signal decoder 28, and the mixer 30. The microprocessor controller 36 controls the operation of the VCR 22 by providing on a line 37 control signals to the VCR in response to user selected commands or the result of operations of the controller. The microprocessor controller 36 receives user selected commands from a remote controller unit 38 (also referred to as "remote control"), which is coupled by wireless means known in the art, such as infrared, ultrasonic, or radio frequency, to a wide angle remote signal detector 40 which can detect the infrared signals from the remote control which may be anywhere in the room in which the video system 10 is located. The remote signal detector 40 converts the user selected commands into electrical control signals by means well known to those skilled in the art and provides on a line 42 such control signals to the microprocessor controller 36.

The remote control 38 preferably includes the control functions for controlling the operation of the tuner 12, the VCR 22, and the program guide functions of the microprocessor 36 as will be described below. Alternatively, the remote control 38 may be a universal remote controller for controlling a plurality of other electronic devices (not shown), such as radio receivers, compact disk players, and the like.

FIG. 2 illustrates an embodiment of a remote control unit 38 for operating the video system of FIG. 1 . As is known in the art, the remote controller 38 has a plurality of push buttons and switches which create output infrared signals in response to user actuation of the same. A command mode selector switch 202 enables activating the control unit. A plurality of channel number buttons 203 enable remote entry of channel numbers. An enter button 204 is used to enter channel numbers and menu options in the methods discussed below. A menu button 205 is used to display the menu of user options as discussed below. A plurality of cursor buttons 206, each marked with an arrow, is used to move a cursor on the video display 34 in various menu operations. An antenna TV/VCR button 208 is used to command the video display 34 to display a signal coming from either the antenna 14 or the output of the VCR 22. A power switch 209 enables or disables power to the VCR 22. A TV/VCR switch 210 selectively enables using the remote control 38 to control the VCR 22 or the video display

34. An input select button 21 1 enables selection of the source to be recorded.

Channel change buttons 212 enable toggling the channel selection up and down.

Similarly, volume buttons 213 enable toggling the volume louder or softer. A record mode button 214 enables selection of recording tape speed. A timer clear button 21 5 is used to clear timer settings of the VCR. A timer record button

216 is used to enter a timer recording mode. An index button 217 is used to enter an index mode for searching for selections on the video tape. Other buttons 218 can be used to control various functions of the VCR, including the direction, speed, and mode of the tape transport, such as rewind, play, record, fast forward, pause, single frame advance, and slow motion. The functions and implementation of each button are well known in the art. A print button 221 allows the user to print a hard copy of data stored in the RAM 48. Page up and down buttons 222, 223 are used to move up or down pages on the screen. A cancel button 224 is used to cancel selection made. Enter button 225 is used to enter channel numbers in menu options methods described herein. A review button 226 is used to reviewed stored selections. A program identification button (program I.D) 227 is used to display the program title and other information of the program being viewed. A select button 228 allows the viewer to select entries on menus. An exit button 229 allows the viewer to exit from a menu that the viewer is presently watching. An info button 230 (also referred to as "I button") allows the viewer to request auxiliary information as will be described below.

The terms button and key are used interchangeably throughout this description. The details of the operation of these button are discussed below as part of the explanation of the feature of the video system 10, and subsequent discussions about the operation of the video system the terms "entering" or "sending" a command with the remote control 38 means the corresponding key on a remote control has been pressed and the remote control can convert the command into an infrared signal that is transmitted to the remote signal detector 40. For example, pressing the exit key causes the remote control 38 to send an infrared signal corresponding to an exit command. These terms are used interchangeably.

Returning now to FIG. 1 , the microprocessor controller 36 comprises an integrated circuit microprocessor and a clock for generating a clock signal for timing functions and providing the time. The time may be set using the remote control 38 in a manner well known in the art. The clock has its own backup battery (not shown) to allow the system to retain the time during power outages and interruptions. Alternatively, the VCR 22 may maintain the time.

A read only memory (ROM) 44 stores a basic operating program, the VBI encoding and decoding programs, and the video image data decoding programs, which the ROM provides on a line 46 to the microprocessor controller 36. At system power up, the microprocessor controller 36 reads the basic operating program from the ROM 44 and executes a start up routine. A random access memory 48 is coupled by a bi-directional bus 50 to the microprocessor controller 36. The RAM 48 is preferably non-volatile, such as electrically erasable programmable read only memory (EEPROM). Alternatively, the RAM 48 may be battery backed up. The RAM 48 stores the system software of the microprocessor controller 36 and stores the electronic program guide transmitted in the video signal as will be described below. The size of the RAM 48 is set by the user or manufacturer per their requirements for the number of channels, duration, program description, and the like for the television program listings that are to be stored. For example, storing more channels and longer lengths of time of program guides each require larger memory capacity. Effective memory size of the RAM 48 may be increased by using well known data compression techniques. Alternatively, the memory 48 may be comprised of other types of memory such as floppy disks, optical disks, magneto-optical disks or other magnetic disks. The RAM 48 may be partitioned to include a temporary buffer for temporarily storing received video data, a permanent buffer for long term storing of received video data, and a guide memory for the program guide.

The system architecture of the video system 10 in FIG. 1 shows the microprocessor controller 36 having multiple inputs and outputs to several functional units such as the video signal decoder 28, the VBI encoder 26, the VBI decoder 24, the RAM 48, the ROM 44, and the like. An alternate embodiment

(not shown) using a common bus structure may be used. In this alternate embodiment, the aforementioned functional units and the microprocessor controller each connect to a common bus.

A character generator 52 receives character data on a line 54 from the microprocessor controller 36 and provides on a line 56 video characters to the mixer 30. The character generator 52 has an internal ROM (not shown) for storing a data table representing pixel or bit map patterns of a plurality of alphanumeric characters, such as the Roman alphabet and the Arabic numerals. The word "text" is used herein to describe either characters or graphics. In response to character and position commands from the microprocessor controller

36, the character generator 52 reads from its internal ROM the character bit map corresponding to the commanded character and provides it on a video output signal to the mixer 30 for positioning on the video display 34 at coordinates determined by the commanded position. The end result is the visual display of an alphanumeric character on the video display 34. Character generators are well known for channel display in television receivers and for use in professional titling equipment. The mixer 30 selectively provides in response to commands from the microprocessor controller 36 either the video signal from the tuner, the VCR 22 or the character generator 52 or a combination of the three. In particular, the mixer 30 switches between five modes: a TV mode, a VCR mode, a graphics mode, a combined TV/graphics mode, or a combined VCR/graphics mode. In the

TV mode, the mixer 30 provides the output from the tuner 1 2 to the display 34. This mode is the normal operational mode, while the viewer is watching television. In the VCR mode, the mixer 30 provides the video signal output from the VCR 22 to the display 34. This mode is the normal operational mode while the viewer is playing the VCR 22. In the text mode, the video modulated text from the character generator 52 is provided to the video display 34. As will be described below, this mode is the normal operational mode for using the electronic program guide. In either the combined TV/text or VCR/text modes, the text is modulated onto the channel 3 video signal from the tuner 1 2 or VCR 22, respectively. This mode is used to provide the electronic program guide while the viewer is watching TV or playing the VCR.

An interface (l/F) connector 68 is coupled to the microprocessor controller 36 and allows communication between the microprocessor controller 36 and an external device 70. The connector 68 includes interface circuitry, such as input/output (I/O) buffers and preferably has an RCA phono female connector.

The external device 70 may be a memory, such as additional RAM, a disk or a tape, or a printer. In a specific implementation, the microprocessor controller 36 communicates with a printer 70 to print parts of the electronic television program guide described below. In an alternate embodiment, in place of the interface connector 68, an infrared detector/emitter in the video system 10 functions as a data port which can be used to both receive remote control commands and to transmit the program guide from the RAM 48 to the printer 70.

While a VCR, an antenna, and a cable box are all shown in the configuration of FIG. 1 , the invention may be used with just one of these devices. Furthermore, although the devices are shown as individual units, they may also be combined devices, for example, the display 34 and the VCR 22 may be built as one unit. Moreover, one electronic device, such as the microprocessor controller 36, may be combined with another electronic device, such as the VCR 22, into one unit.

VIDEO SIGNAL FORMAT FIG. 3 is a schematic diagram illustrating the interlaced scanning pattern on a screen of a conventional television receiver.

Video images in a cathode ray tube (CRT) type-video device, e.g. television, are generated by scanning a beam along a predefined pattern of lines across a screen. Each time all the lines are scanned, a frame is said to have been produced. In one implementation, such as used in the United States, a frame is scanned 30 times per second. Each television frame comprises 525 lines which are divided into two separate fields, referred to as field 1 ("odd field") and field 2 ("even field"), of 262.5 lines each. Accordingly, these even and odd fields are transmitted alternately at 60 Hz. The lines of the even and odd fields are alternately interleaved to produce the full 525 line frame once every 1 /30 of a second in a process known as interlacing. Many other standards in the world use 625 lines of information and interlace 312 and 313 lines at 50 fields per second. In the United States 525 line standard, approximately 480 lines are displayed on the television screen.

Referring now to FIG. 3, the video display 34 scans the beam from the top left hand corner and scans across the screen (line 21 , field 1 in FIG. 3). After it finishes scanning the first line, the beam returns to the left hand side during a period known as a horizontal blanking interval and repeats scanning along another line which is parallel to but lower than the previous line (line 22, field 1 in FIG. 3). The scanning continues along the odd numbered lines until the beam reaches the center of the bottom part of the screen (line 263, field 1 ). These odd numbered lines form field 1.

From the bottom center of the screen, the beam returns to the top where it starts scanning from substantially the center of the screen along the even numbered lines which interlace the lines of field 1 . This is not an instantaneous bottom to top jump but actually requires the length of time to scan 20 horizontal lines (left-right diagonal trajectory to the top of the picture). These lines are numbered 264 through 283. The even numbered lines form field 2. When the beam reaches the bottom, right hand corner of the screen, the picture frame is formed. In the NTSC protocol widely used in North America, each field contains 262.5 horizontal lines and a pair of fields constitute a single 525 line video frame and creates one video picture at one instant in time on the video display 34.

During the time in which the beam returns from the bottom to the top of the screen between the fields it carries no television signals because it does not produce any picture element on the screen. This time interval is generally known as the vertical blanking interval (VBI). Its duration is typically 20 times the time duration that it takes the beam to scan across the screen. In other words, the duration of the VBI is equal to the time for the beam to scan 20 lines. Thus, the VBI typically contains a plurality of lines and is identified by the field with which it is associated. Apparatus and methods using these techniques are well known in the art and therefore are not discussed in detail herein.

Because no image is produced on the display during the vertical blanking interval, no information therefore needs to be carried by the broadcast signals. However, proposals have been made to use the VBI for conveying auxiliary information from a television network or station to an audience. For example, closed caption data associated with the television program are transmitted as encoded composite data signals during VBI line 21 , field 1 of the standard NTSC video signal at a rate of 480 bits per second.

As will be described in detail below, auxiliary video information is recorded on the video signal that forms a plurality of lines of one of the fields. By way of illustration, data may be encoded on lines 21 and 22 of the field 1 .

Referring back to FIG. 1 , the VBI decoder 24 removes the data encoded in the VBI and provides it on a line 58 to the microprocessor controller 36. The microprocessor controller 36 provides on a line 60 control signals to the VBI decoder 24 for controlling the decoding of the VBI information. VBI decoders are well known in the art and thus are not described in detail herein. The decoded data is used for controlling the operation of the video system 10, such as for VCR recording timer programming or for creating a directory of programs recorded on the tape by storing the directory in the RAM 48.

Data is placed in the VBI of a broadcast television signal by a broadcast television station in a continuous stream. A recipient of the VBI data cannot alter the flow rate of the data stream that is broadcasted. However, a buffer 62, is used for storing the VBI data as it is processed by the VBI decoder 24. Under control of the decoder, all VBI data received by the decoder is stored in the buffer 62 and serially outputted to the microprocessor controller 36. By temporarily storing the data in the buffer 62 the user may utilize this data for operating the video system 10 without the need of searching the RAM 48 to thereby provide faster access time to the data.

The VBI encoder 26 receives on a line 64 control signals and data from the microprocessor controller 36 and encodes such data for recording into the VBI portion of the video signals received from the line 20 and provides the encoded video signals on a line 66 to the VCR 22. The VBI encoder 26 can be implemented in a similar manner as one of those already existing in the art, e.g., encoders for encoding closed caption data into the VBI portions of video signals.

Although the VBI encoder 26 and the VBI decoder 24 are shown and described as separate units, they can be incorporated into a single semi-conductor chip or implemented by discrete logic components. FIG. 4 is a schematic diagram illustrating the data encoded video image according to principles of the invention.

As described above, a video broadcast signal 400 is comprised of a plurality of video frames 401 . For simplicity, 214 frames are shown in FIG. 4. In this example, the video broadcast signal 400 comprises, in a time sequence, frames 401 -1 , -2, -3 corresponding to respective frames 1 , 2 and 3. Fig. 4 shows only part of frame 3 for simplicity and clarity. Each frame 401 comprises an odd field 404 ("field 1 ") of odd scan lines and an even field 405 ("field 2") of even scan lines. The dash number of the reference numeral for the field corresponds to the frame number. For example, the odd field of frame 1 401 -1 has the number 404-1 . Similarly, the even field of frame 1 401 -1 has the reference number 405-1 .

The odd field 404-1 of frame 1 401 -1 comprises, in a time sequence, a VBI 41 1-1 , a video picture 412-1 , a data interval 413-1 , and a video picture 414- 1 . The VBI 41 1 is the vertical blanking interval described above. The VBI may contain encoded data. The video picture 412 comprises video signals transmitted on a first part of the video scan lines forming the field. The data interval 413 comprises data signals having encoded auxiliary information that are transmitted as video signals on a second part of the video scan lines forming the field. The video picture 414 comprises video signals transmitted on a third part of the video scan lines forming the field. The video pictures 412, 414 from the fields 404, 405 form the video images that the viewer sees. As will be described below, although the data interval 413 is displayed, it will not be seen by a viewer because it occurs at a rate slower than the human eye can perceive. The even field 405-1 , which follows the odd field 404-1 , comprises a VBI

41 1 -2 and a video picture 412-2. The video picture 412-2 comprises video signals transmitted on the video scan lines of the field. Unlike field 1 , field 2 does not have a data picture 413-1 encoded therein.

The frame 2 401 -2 follows frame 1 401 -1 . Similarly, frame 2 401 -2 comprises an odd field 404-2 and an even field 405-2. The odd field 404-2 has a similar structure to the even field 405-1 of frame 1 401 -1 and comprises VBI 41 1 -3 and picture 412-3. The even field 405-2 is again similar and comprises a VBI 41 1 -4 and a picture 412-4.

For simplicity and clarity, FIG. 4 shows only the odd field 404-3 of frame 3 401 -3. The odd field 404-3 is similar to field 404-1 of frame 1 401 -1 . The odd field 404-3 comprises a VBI 41 1 -5 followed by a picture 41 2-5 followed by a data interval 413-5 and a picture 414-5.

For simplicity and clarity, line synchronization pulses, color burst signals, and other control signals are not shown in FIG. 4. They are well known in the art and are not necessary in the discussion for understanding the invention. By broadcasting data encoded in a few lines of the picture of the fields and alternating frames on which the data is encoded, a viewer watching the displayed broadcasted video signal will not perceive the data being displayed on the screen. As shown in FIG. 4, the first field of every other frame contains a data interval. Thus, at a rate of 1 /60 of a second per field, the data, which is in every fourth field, is displayed every 1 /240 of a second. The data interval occurs

1 5 times a second because it is in alternate frames. This results in little noticeable visual degradation of the video picture because the human brain retains a visual image for a brief period after the image is removed ("persistence of vision"). The human brain typically detects images occurring at a rate of 30 times a second or slower. Consequently, the data occurring at 15 times a second in alternating frames will not be perceived.

FIG. 5 is a timing diagram showing the level of the signals in the picture and data interval in the time interval 5-5 shown in FIG. 4.

The picture 412 comprises a series of lines of video images 501 separated by a horizontal blanking signal 502. As described above, during a raster scan, the beam scans across the screen in a line to form one line of the video image and then scans back to the beginning of the next line. The scan back period between lines is called the horizontal blanking interval 502. After scanning back to the beginning of a line, a data packet 503 is encoded on a plurality of lines to form the data interval 413. Two lines are shown for simplicity and clarity in FIG.

5.

A preamble 504 is used to identify the line as encoded data. The video signal decoder 28 constantly monitors the video signal for the occurrence of a preamble 504 which indicates the start of the encoded data. Following the preamble 504, a data symbol 505 is a set of data representative of the encoded information that is being broadcast on the video signal. In one implementation, the data symbol 505 contains the electronic program guide. The data transmitted within the auxiliary video information is both encrypted and scrambled. The data is encrypted using a secret key encrypting system, such as the data encryption standard (DES) proposed by IBM and adopted by NBS in 1978. After encryption, the data is scrambled by using a scrambling key to swap bits of the encrypted data. Following the data symbol 505, a postamble

506 identifies the end of the encoded data and may include error detection codes such as cyclic redundancy codes or checksums to ensure data integrity.

In parallel to the video signal decoder 28 monitoring the occurrence of data, the signal is also provided either directly to the VCR 22 or to the mixer 30 where it is subsequently provided to the video display 34. In either case, the data is recorded as a video signal on the tape or displayed as a video signal on the video display 34.

As described above, by using the video signal decoder 28, the microprocessor controller 36, and the RAM 48, the video system 10 can capture data broadcasted in the video and display it either concurrently with or at a later time to the data transmission. The broadcasted data may be transmitted on a plurality of lines in the video during spaced apart fields. Any lines of the raster scan may be used. Moreover, the location of lines containing video data may change between fields or frames. However, using lines near the top or the bottom of the screen where the viewer spends less time watching may allow the repetition rate and the number of lines to be greater. In addition, the number of lines used during a field may vary between fields. Pointers may be used in one line of video to indicate that data is being transmitted in other lines.

The auxiliary video information described in detail below is broadcasted on video lines as described above. After being received, the microprocessor controller 36 decodes the data and stores it in the RAM 48.

When subsequently retrieved, the data is displayed as text on the screen in response to user selected commands.

FIG. 6 is a schematic view showing the format for the video data image packet recorded in the video.

As described above in FIG. 5, the data packet 503 comprises the preamble 504, the data symbol 505, and the postamble 506. The preamble 504 includes a start code 601 to indicate the start of data followed by a type code 602 that defines the type of data that is being transmitted. The type code 602 may also include a code to indicate that the data on one line is a continuation of the data transmitted from previous lines. The data symbol 505 includes a usage symbol 603 for describing what the microprocessor controller 36 is to do with the data and information symbols 604 that contain the encrypted and scrambled data. The usage 603 code defines whether the received data is to be stored either in a temporary buffer on a printer, a permanent buffer, or to the external RAM. The postamble 506 includes an end code 605 to indicate the end of the data and a checksum 606 for error detection. An error detection code may also be used to ensure data integrity at the video system 10.

Some of the text information contained in the data packet is displayable. When received, these packets are stored according to their types in different locations of the memory. The information field contains displayable text characters, nondisplayable control characters, and nondisplayable attribute characters. The control characters and attribute characters are executed immediately upon receipt. A control character or an attribute character remains effective until it is overridden by the same control character or an attribute character of a different value. A default mode is defined for each type of control code and attribute. The default is effective at the start of a new data stream, which may be, for example, at the start of each program guide or a page in the guide. Within the data stream, the default remains effective until it is overridden by a control character or an attribute character. The general form of the information field is as follows: [control]

[attribute] [displayable] . . . . [displayable] [attribute] [displayable] . . . .

The control codes include text display size and text page size. Alternatively, the character generator 52 may determine the number of rows and columns and the page size. The control codes also include a text display mode, such as pop-on style, scroll up style or single line "crawl" style. The control codes also define the character set such as standard line set, an extended character set, Japanese characters, Chinese characters, Korean characters, and the like. The control codes can also control the destination of the data such as to print the data through an infrared port or a serial port to the printer.

Other text display control codes include tab codes for causing the cursor to shift, an indent control code causing the cursor to shift relative to the beginning of a line, and a new line control code causing the cursor to go to the beginning of the next line. Control codes also control storing data in memory or erasing data from memory.

The attribute codes are used for selecting display color, such as a blue background with white characters or other selectable background and foreground colors, the size of the character set, and whether the data is printable on the screen or hidden. The attribute code may also include the channel-date-length-time information or an encrypted number representative of such information for timer programming the VCR for recording. To facilitate searching in the program guide listing, a key word attribute can be used for defining key words for programs that will be used for searching for user selected programs or user selected criteria.

To facilitate processing of video information, a pointer system may be used. In such system, a pointer in some lines indicates the line numbers of subsequent lines that contain video data. This system is useful for video signal decoders 28 that have limited capability for processing video image data. AUXILIARY VIDEO INFORMATION

Three types of auxiliary video information are transmitted: program identification (program ID); channel program guide; and program related information (PRI).

The viewer is alerted to the existence of the auxiliary video information in several ways. In a first method, before the program is transmitted, the video system displays on the screen 34 a prompt to the user that information is forthcoming. The prompt may be a flashing icon, such as the letter "I," or a new screen, such as a blue background with white text. The video system 10 requests the user to enter a command, for example, by pressing the "I" button on the remote control 38, to store in the RAM 48 the auxiliary video information or, in some embodiments, to record in a record stack in the RAM an encrypted number corresponding to the channel-date-length-time of a program that is to be recorded. As will be described below, the user may later recall this information.

To indicate that the command was received, the microprocessor controller

36 may either stop flashing the icon display, display an acknowledgement, such as "stored" or "saved", or display a separate screen. The user may request the information before, during or after the broadcast. Alternatively, the auxiliary video information may be initially transmitted and stored in a temporary buffer in the RAM 48. The microprocessor controller 36 then prompts the viewer to enter commands. In this embodiment, the video system transfers the auxiliary video information from the temporary buffer to a designated area of the RAM called a permanent buffer in response to the user selected commands. Alternatively, in a second method, the video system 10 may provide the prompt after the program is viewed. In this embodiment, the auxiliary video information may be transmitted before the program, during the program, or after the prompt. In a third method, the prompt is displayed concurrently with the program.

For each method, the user has a predetermined amount of time to request the auxiliary video information. When the auxiliary video information is requested, the video system 10 displays it for either a predetermined time, until the user cancels it (for example, by pressing the program ID button a second time), until the next auxiliary video information is requested, or until the broadcaster transmits a cancel command in the video image.

Because the auxiliary video information is frequently used for advertising, it is desirable to not alert the user to stop recording a program when a commercial occurs. Thus, the time that the auxiliary video information is transmitted is preferably adjusted so that the user can not generate, in response to the auxiliary video information, a signal for shutting off the VCR 22. For example, if the auxiliary video information is always transmitted 30 seconds before the commercial, i.e., 30 seconds is always the lead time, the user may program his VCR 22 to stop recording 30 seconds after the detection of the auxiliary video information and start recording again 60 seconds after the VCR stops recording. But if the lead time is variable, the user misses recording a portion of the program. For example, if the next commercial uses a 60 second lead time, the viewer shuts off the VCR 30 seconds early if the user is using a

30 second lead time. Furthermore, the auxiliary video information may also be transmitted after the commercial so that the user can not shut off the VCR in advance.

Alternatively, the prompt may be a number that the user enters to indicate the auxiliary video information is to be recorded.

Describing the program ID first, the broadcast station preferably broadcasts program identification information on a predetermined line of the video. This information may include the title of the program, the program length in minutes, the present day and time, the station call letters, or a four letter abbreviation of station name (e.g., SHOW for SHOWTIME), and channel number.

In one mode of operation, when the user changes the channel or when recording or playback of the tape begins, the program ID is automatically displayed for a predetermined length of time, e.g., 5 seconds, and then removed.

Alternatively, when the user presses the program ID button on the remote controller 38, the video system 10 displays the program ID on the screen 34.

When a program is recorded, the program title may be stored in a directory in the RAM 48. A viewer can access the title of the program being shown by pressing the "Program ID" key. When the key is pressed, the microprocessor controller 36 commands the video signal decoder 28 to decode selected field and lines of the video either from the broadcasted signals or from the reproduced signals depending upon its mode of operation. The program I.D. information for a plurality of viewed channels is stored in the RAM 48. Although some of the program I.D. information changes with the program (e.g., program title, start time, length, program category), this information is quickly retrievable from the memory when the user switches channels and requests the program I.D. to be displayed. Using the start time and length of the program, the video system 10 checks, periodically or in response to a Program I.D. command, whether the information is still within the valid time before displaying it on screen.

The channel program guide is the combination of the program IDs for a plurality of programs that will be broadcasted on a particular channel during an upcoming predetermined time. In addition to the information included in the program ID, the channel program guide may also include the channel-date-start time-length data, the titles, and a description of the programs. In addition, the information that is displayed may be controlled by attribute codes contained within the program guide, which are described above. For example, the channel-date-time-length encoded numbers may be printable on screen, but if it is preceded by a "non-print" attribute, the microprocessor controller 36 does not display it. As a second example, special events may be highlighted by using a character attribute.

A broadcasting station broadcasts, on a periodic basis, the channel program guide in the video frames of the broadcast. The video signal decoder

28 continuously decodes the channel program guide from the video frames and stores it in the RAM 48. Because of unexpected events, such as sport programs that overrun their scheduled broadcast time or news breaks that shift programs, the broadcaster may update the program guide and transmit the new guide. Accordingly, as the new guide is read, the microprocessor controller 36 stores it in the RAM 48.

By way of background, the temporary and permanent buffers of the RAM 48 described above operate in a circular mode in which an old data packet stored in the buffer is overwritten by a new data packet that is received. The guide memory also operates in this circular mode. The program guide may also include a video program guide of special programs, such as video magazines, video sales catalogs, video classified ads, and infomercials. The program guide allows the user access to a television program listing for those who do not have a periodical listing or newspaper listing, or those who misplaced their listings.

The format of the channel program guide data packet is described above in conjunction with FIG. 6. As the data is decoded, the data stored in the RAM 48 is updated by each subsequent data packet. The quantity of information supplied in the data packet is determined by the broadcaster. For example, the broadcaster may provide program schedules for the subsequent week but provide only the description of the programs for the next day. In addition, the guide may also include special events for the upcoming few weeks. By viewing the listing before the viewer goes to work or goes to sleep, the user may program his video system 10 using the program guide for recording shows during his absence or sleep.

When the viewer switches to a different channel, the video system 10 will begin reading and storing the program guide data for the new channel. However, because many viewers switch between channels, sufficient memory may be provided so that the program guides for at least two channels may be stored in the RAM 48.

The stored program guide may be used to implement timer programming of the VCR. Using the remote control 38, the user programs the VCR 22 to record the desired program by moving the cursor to this program and pressing the Record button. In embodiments in which the channel-date-time-length encoded numbers are displayed on the screen, the viewer may also program the

VCR 22 by entering on the remote controller 38 the encoded number for the program to be recorded. In response thereto, the microprocessor controller 36 stores the encoded number into its VCR programming stack in the RAM 48 for execution as described below. Although the program guide has been described as being unique for each channel, the video system 10 is not so limited. The program guide for a plurality of channels may be broadcast on each of the plurality of channels or a separate dedicated channel. Operation Having described the program guide, the operation of the video system

10 is now described. FIG. 7 is a flowchart showing the steps employed in the operation of the video system according to principles of the invention.

The microprocessor controller 36 continues in a ready state (step 701 ) until it detects a guide command provided by the user via the remote control 38 (step 702). In response thereto, the microprocessor 36 retrieves from the RAM

48 a menu of categories that the viewer can select from to view the program guide (step 703). In one embodiment, the microprocessor controller 36 generates a guide that is a composite of the guides from a plurality of broadcast channels. Alternatively, the microprocessor controller 36 may provide a program guide for the television channel that is presently being viewed.

The microprocessor controller 36 provides the corresponding command and position characters to the character generator 52 that retrieves the corresponding bit map from its internal ROM and modulates such data onto a video signal which the character generator provides to the mixer 30 and subsequently to the video display 34 for displaying the menu (step 704).

To exit a menu at any time, the user presses the exit button (step 705). In response thereto, the microprocessor controller 36 commands the mixer 30 to provide the video signal that the viewer was watching prior to entering the guide routine (step 706). The program guide program allows the user to sort the entries in the guide by various categories such as day, time or type of program.

As will be described, the microprocessor controller 36 stores the user's selections for recording programs in the RAM 48.

Upon entering the guide program, at step 704, the microprocessor controller 36 displays the program menu of FIG. 8. The program menu provides a selection of different sorts of program listings. The menu allows the viewer to select the data or category of programs that are to be displayed. The categories in the menu shown in FIG. 8 are for the purposes of example only. The invention is equally well adapted for other sorting categories. Other sorts may be movie situation comedies, soap operas, new sports and children shows. The microprocessor controller 36 will display a menu like the calendar-by-date menu of FIG. 9 except that these menus have an additional column for the date of the show. The programming of these other sorts is similar to that of the calendar- by-date menu shown in FIG. 9.

As described above in the data format of FIG. 6, the program guide includes the title of the program, category codes for sorting, and channel-date-time-length (CDTL) information for each program. The user makes a selection using the cursor keys (step 706) and enter key on the remote control 38 (step 707). Menus frequently have multiple pages which may be advanced by using in combination the keypad, the cursors, and the page key. Upon detection of the user request, the microprocessor controller 36 retrieves the data corresponding to the program listing (step 708) and displays a menu corresponding to the selection (step 709). For example, if the user wants to see a program guide for a particular date, after the user enters the date by using the keypad on the remote control 38, the microprocessor controller 36 reads from the RAM 48 and sorts by the selected date. Upon completion of the sort, the microprocessor controller 36 displays a calendar-by-date menu as shown in FIG. 9. The calendar-by-date menu has columns for CDTL codes, channels, start time and title. Alternatively, the codes may be replaced by sequential line numbers to allow random access selection of programs by line number.

The user may select to record a program by entering the coded number or the line number of the program which is used to program the VCR as described below (step 710).

The microprocessor controller 36 detects whether the record key has been actuated. If the record key has been actuated (step 710), the VCR stores the CDTL code number corresponding to the selection in a programming stack that is used for timer programming the VCR (step 71 1 ) as described below to otherwise, the microprocessor controller 36 continues displaying the menu until a EXIT command is sent (step 712).

Timer Programming

The VCR 22 can optionally be programmed to perform recording at a later time using the CDTL encoded numbers. A recording or programming stack in the

RAM 48 stores the CDTL encoded number settings for a plurality of programs selected to be recorded.

When the microprocessor controller 36 is interrupted by a record command, such as step 71 1 in FIG. 7, it checks whether the CDTL buffer in the memory is full. If the buffer is not full, the microprocessor controller 36 displays a screen requesting the user to enter a CDTL code number. The microprocessor controller 36 then waits for an input from the user. The user enters the CDTL encoded number by pressing the number keys on the remote control 38 and pressing enter. In response to an enter command, the microprocessor controller 36 checks whether the input number is a valid CDTL encoded number. If the inputted number is an invalid number, the microprocessor controller

36 displays a prompt to the user to reenter the CDTL number. If a cancel key is pressed, the VCR recording is cancelled for that number.

On the other hand, if the CDTL encoded number is valid, a check is made to determine whether there is a conflict between the newly selected program and previous recorded programs. A conflict occurs when the CDTL number setting is for a recording which will occur at the same time as another scheduled recording. If there is no conflict, a prompt is displayed to request the user to enter a number corresponding to recording the program once, weekly or every weekday. Pressing any other key other than the three keys is ignored by the microprocessor controller 36.

Upon receiving one of the three commands, the microprocessor controller saves the input. A confirmation screen is then displayed confirming the recording data, such as channel number, date, start time, stop time, and recording option (i.e., whether the recording is to be performed once, weekly or daily).

If the data on the confirming screen is correct, the user presses the enter key and the recording is set. Otherwise, if the data is incorrect, the user can press the cancel key to reenter the CDTL encoded number. If the CDTL buffer is already full when the record key is pressed a warning screen is displayed which advises the user that the buffer is full and that he needs to delete a program from the buffer before another program can be added. As part of the warning screen, the user can be advised that he can review the list of programs stored in the CDTL buffer so that he can delete one or more programs to make room for the new setting. The user is also advised that he can press the cancel key to exit the timer programming routine. Upon pressing the review key, the viewer can review the CDTL encoded number settings. In response to a review command, the microprocessor controller 36 retrieves the CDTL number settings from the CDTL buffer. Based upon this data, the microprocessor controller 36 displays the programs to be recorded. This display may comprise a number associated with the entry, the channel number of the program recorded, the date of the program, the time of the program, and either the length of the program or the end time of the recording.

The microprocessor controller 36 can receive information from the VCR 22 indicating whether there is a tape in the VCR and its length. The microprocessor controller 36 uses this information to inform the viewer to enter a tape into the VCR 22 and advise if additional tape is needed. If the newly entered CDTL encoded number conflicts with an existing

CDTL number stored in the buffer, a screen is displayed which shows data such as the channel date, start time and stop time of both the newly entered setting and the existing setting that conflicts. The microprocessor controller 36 then waits for the user to press the cancel key to delete either the new entry or delete the old entry.

The microprocessor controller 36 puts the starting time of the earliest CDTL encoded number entry into a timer. When the timer equals the time of day clock, after the microprocessor controller 36 is interrupted, it executes a recording procedure to command the VCR 22 to record the selected program and deletes the program selection from the record stack. In addition, the microprocessor controller 36 commands the tuner 12 to the channel corresponding to the CDTL encoded number.

After an elapsed time equal to the length of the program, the microprocessor controller 36 commands the VCR to stop recording.

Creation of the Program Guide in Memory

The creation of and the storing of a program guide in memory are now described. During normal system operations, the video signal detector 24 constantly monitors the video image for program guide information. Upon detection of the preamble, the microprocessor controller 36 stores the corresponding program guide data in the RAM 48. The microprocessor may display an indication, such as a icon, e.g., the letter "g", to the user to alert him that the electronic program guide has been recorded. The RAM 48 is preferably partitioned into guide memory spaces for each selected channel. Each time the microprocessor controller 36 changes the channel of the tuner, the controller overwrites the section of memory allocated to that channel with the newly received program guide. Thus, the entire guide memory forms a program guide for all channels. Alternatively, the program guide for all channels may be broadcast on one channel.

Program-related Information

Program-related information (PRI) is information broadcasted in the video frame and that is related to the program being aired in the remainder of the video frame which is available upon user command, either concurrently with the program or at a late time. The use of PRI extends the time of an advertisement because the viewer is able to view the information at a later time at a pace selected by the viewer. Examples of PRI includes statistics of baseball players during a baseball game, recipes given out during a cooking lesson, and problem assignments and answers after an educational program. In other examples, many commercials during the program urge the viewer to call a toll-free number to get further information or to place an order or give details about an upcoming sales event or promotion. In existing systems, such information which is conveyed in the video is fleeting, because most viewers are either not disposed to take any action on the spur of the moment or are unprepared to take such action. The PRI is transmitted in the video frame and may be captured and displayed on screen on the command of the user. Thus, the PRI may repeat the information provided during commercial or program or may contain additional information. For example, the commercial may be a promotion about an upcoming movie while the PRI for this commercial may provide additional details about the cast or plot of the movie. Further, a CDTL encoded number may be provided so that at the press of a single button, the CDTL encoded number is used to program the VCR 22 to record the requested program. Alternatively, the commercial may be a short commercial which is a promotion for a long commercial such as an infomercial aired in the middle of the night. The broadcast station broadcasts the PRI in a time window during which it is related to the program or commercial being broadcast. Alternatively, the PRI may be broadcast offset in time from the program or commercial. The PRI is typically repeated throughout the time window. The PRI is preferably set on one or more video lines as described above. The video system 10 continuously reads the video for the PRIs. Each PRI has an ID number as part of the information symbol so that the video system 10 recognizes when the PRI is repeated during a commercial or in a rerun of the commercial. When the ID number of the present PRI equals the ID number of a PRI in either the temporary or the storage buffers, the video system 10 overrides the old PRI in the buffer. Otherwise, if there is not a match of ID numbers, the video system determines whether the temporary buffer is full. If it is full, the microprocessor controller 36 overrides previously stored PRIs on a first-in-first-out (FIFO) basis. Otherwise, the video system 10 stores the new PRI in the temporary buffer. In addition to monitoring the video lines for PRIs, the video system 10 also monitors for user selected commands. If a store command is detected, the microprocessor controller 36 determines whether a storage enable bit is set, which if it is not set during the broadcast, then the PRI is not storable, i.e., PRI can be stored only in the temporary buffer and not in the storage buffer. If the storage enable bit is set, the video system 10 deletes the PRI from the temporary buffer and stores it in the storage buffer. The microprocessor controller 36 then displays an acknowledgement message such as "stored" on the screen 34 if an acknowledgement bit is set. The microprocessor controller 36 then continues monitoring the PRI.

If, however, a stored command has not been set or the storage enable bit is not set and a review command is not detected, the video system 10 returns to reading the PRI. Otherwise, the microprocessor controller 36 displays in a list on the display the titles of the PRIs (the first line of the PRI) stored in the buffers.

The viewer is able to move through the list of displayed PRIs using the cursor keys on the remote control 38. The PRI that it is pointed to is highlighted by reverse video or by other methods well known in the art. If a play command is sent, the microprocessor controller 36 plays the PRI. When the PRI is displayed, the user must either store the PRI in the storage buffer by pressing the store button or delete the PRI from either temporary or storage buffer by pressing the erase button. By pressing the print button, the user can print the PRI. Printing may be done either to a printer or other device connected to the serial port by pressing the record or send button. As the list is displayed, PRIs stored from earlier broadcasts are displayed. The PRIs from later broadcasts that are stored in the temporary buffer are also displayed. At a later time when the user presses the review button again, PRIs in the temporary buffer may be replaced by new PRIs while PRIs in the storage buffer remain unchanged.

For PRIs that contain CDTL encoded numbers referring to other related programs that are to be broadcasted later, when the user presses the second button, the microprocessor controller 36 stores the CDTL coded number in its programming stack for subsequent recording. The microprocessor controller continues to display the buffer content until the user presses the exit key.

The embodiment discussed above uses the store button and the review button for storing and reviewing PRIs. Alternatively, these functions may be done by a single button such as the I button. Pressing the I button one time may invoke the storage function while pressing it twice in a row may invoke the review function.

In the foregoing, certain values and representations are used to facilitate description and understanding of the invention. For example, operations of the microprocessor controller 31 are described as being responsive to actuation of certain keys ("RECORD", "PLAY", "I", etc.). It will be understood, however, that such keys may be implemented by any predefined sequence of keys. Therefore, the foregoing description should not be read as pertaining only to the precise structures and techniques described, but rather should be read consistent with, and as support for, the following claims, which are to have their fullest and fair scope.

Claims

WHAT IS CLAIMED IS:
1 . A video system comprising: a receiver adapted for receiving broadcasted video signals; a decoder coupled to said receiver adapted for decoding data contained in a video image of said broadcast video signals to produce information signals containing the data; a memory for storing said information signals; and a controller receiving said information signals and displaying said data.
2. The video system of claim 1 wherein the information signals comprises a television program listing.
3. The video system of claim 1 wherein said information signals represent auxiliary information related to a first video program.
4. The video system of claim 3 wherein said auxiliary information includes information relating to programming schedule of a second video program.
5. A remote controller for operating a video system, said video system having a receiver receiving a first program of broadcast video signals, said broadcast video signal including a video image, the remote controller comprising: a plurality of keys; an interface circuit for generating remote control signals to said video system; and a control circuit responsive to actuation of one or more said keys for triggering said circuit to generate remote control signals to said video system and causing said video system to decode signals from said video image to manage operation of the video system.
6. The remote controller of claim 5 wherein said control circuit comprises means responsive to actuation of a key for causing said video system to decode from said video image representing the broadcast schedule information of a second program related to said first program.
7. The remote controller of claim 6 wherein said broadcast information includes channel, date, time, length information of broadcast of said second program.
8. A method of providing items of information viewable on an electronic display from a broadcaster to a user comprising the steps of: transmitting the information to the user in a first video image of a broadcast signal along with at least a portion of a second video image; detecting the first video image; detecting the information in the first video image and providing it to a memory; and storing in the memory the items of information.
PCT/US1994/009857 1993-09-03 1994-09-02 Transmission of data using full frame video WO1995007003A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11757993A true 1993-09-03 1993-09-03
US08/117,579 1993-09-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU77183/94A AU7718394A (en) 1993-09-03 1994-09-02 Transmission of data using full frame video

Publications (1)

Publication Number Publication Date
WO1995007003A1 true WO1995007003A1 (en) 1995-03-09

Family

ID=22373673

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/009857 WO1995007003A1 (en) 1993-09-03 1994-09-02 Transmission of data using full frame video

Country Status (2)

Country Link
AU (1) AU7718394A (en)
WO (1) WO1995007003A1 (en)

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996041478A1 (en) * 1995-06-07 1996-12-19 Tv Guide On Screen Electronic television program guide schedule system and method with data feed access
WO1997030547A1 (en) * 1996-02-18 1997-08-21 He Holdings, Inc. Doing Business As Hughes Electronics Method and apparatus for navigating an on-screen program guide
US5793438A (en) * 1995-11-13 1998-08-11 Hyundai Electronics America Electronic program guide with enhanced presentation
US5801747A (en) * 1996-11-15 1998-09-01 Hyundai Electronics America Method and apparatus for creating a television viewer profile
WO1999013471A1 (en) * 1997-09-05 1999-03-18 Prevue International, Inc. System for labelling videocassettes with program information
JPH11504171A (en) * 1995-04-17 1999-04-06 スターサイト・テレキャスト・インコーポレーテッド The combination of multi-source information in a television system
EP1083746A2 (en) * 1999-09-10 2001-03-14 Canon Kabushiki Kaisha Signal processing apparatus , method and system comprising a printer
US6563515B1 (en) 1998-05-19 2003-05-13 United Video Properties, Inc. Program guide system with video window browsing
US6564379B1 (en) 1998-04-30 2003-05-13 United Video Properties, Inc. Program guide system with flip and browse advertisements
US20030204847A1 (en) * 1995-04-24 2003-10-30 Ellis Michael Dean Electronic television program guide schedule system and method with remote product ordering
US6769128B1 (en) 1995-06-07 2004-07-27 United Video Properties, Inc. Electronic television program guide schedule system and method with data feed access
US6799326B2 (en) 1998-07-07 2004-09-28 United Video Properties, Inc. Interactive television program guide system with local advertisements
EP1608177A2 (en) 1995-11-20 2005-12-21 United Video Properties, Inc. Interactive special events video signal navigation system
EP1942666A2 (en) 1995-04-06 2008-07-09 United Video Properties, Inc. Interactive program guide systems and processes
US7503055B2 (en) 1998-05-15 2009-03-10 United Video Properties, Inc. Systems and methods for advertising television networks, channels, and programs
US7624410B2 (en) 1997-09-05 2009-11-24 United Video Properties, Inc. Program guide application interface system
US7634786B2 (en) 1998-05-15 2009-12-15 United Video Properties, Inc. Interactive television program guide system for determining user values for demographic categories
US8255952B2 (en) 1999-10-29 2012-08-28 United Video Properties, Inc. Interactive television system with programming-related links
US8266655B2 (en) 1995-04-17 2012-09-11 Starsight Telecast, Incorporated Multi-source switching in a television system
US8397259B2 (en) 1998-04-30 2013-03-12 United Video Properties, Inc. Program guide system with advertisements
US8689259B2 (en) 1998-01-23 2014-04-01 Index Systems, Inc. Home entertainment system and method of its operation
US8863170B2 (en) 2000-03-31 2014-10-14 United Video Properties, Inc. System and method for metadata-linked advertisements
US8869204B2 (en) 1996-05-03 2014-10-21 Starsight Telecast, Inc. Method and system for displaying advertisements in an electronic program guide
US8918807B2 (en) 1997-07-21 2014-12-23 Gemstar Development Corporation System and method for modifying advertisement responsive to EPG information
US8931008B2 (en) 1999-06-29 2015-01-06 United Video Properties, Inc. Promotional philosophy for a video-on-demand-related interactive display within an interactive television application
US8949901B2 (en) 2011-06-29 2015-02-03 Rovi Guides, Inc. Methods and systems for customizing viewing environment preferences in a viewing environment control application
US8973056B2 (en) 1998-07-23 2015-03-03 Rovi Guides, Inc. Interactive program guide system providing an application program interface for non-program guide applications
US9015739B2 (en) 2000-03-31 2015-04-21 Rovi Guides, Inc. Systems and methods for improved audience measuring
US9021538B2 (en) 1998-07-14 2015-04-28 Rovi Guides, Inc. Client-server based interactive guide with server recording
US9071872B2 (en) 2003-01-30 2015-06-30 Rovi Guides, Inc. Interactive television systems with digital video recording and adjustable reminders
US9075861B2 (en) 2006-03-06 2015-07-07 Veveo, Inc. Methods and systems for segmenting relative user preferences into fine-grain and coarse-grain collections
US9113207B2 (en) 1995-10-02 2015-08-18 Rovi Guides, Inc. Systems and methods for contextually linking television program information
US9113107B2 (en) 2005-11-08 2015-08-18 Rovi Guides, Inc. Interactive advertising and program promotion in an interactive television system
US9125169B2 (en) 2011-12-23 2015-09-01 Rovi Guides, Inc. Methods and systems for performing actions based on location-based rules
US9137579B2 (en) 1998-05-19 2015-09-15 Rovi Guides, Inc. Program guide system with video-on-demand browsing
US9137491B2 (en) 2000-02-01 2015-09-15 Rovi Guides, Inc. Methods and systems for forced advertising
US9166714B2 (en) 2009-09-11 2015-10-20 Veveo, Inc. Method of and system for presenting enriched video viewing analytics
US9172987B2 (en) 1998-07-07 2015-10-27 Rovi Guides, Inc. Methods and systems for updating functionality of a set-top box using markup language
US9177081B2 (en) 2005-08-26 2015-11-03 Veveo, Inc. Method and system for processing ambiguous, multi-term search queries
US9191719B2 (en) 2003-11-06 2015-11-17 Rovi Guides, Inc. Systems and methods for providing program suggestions in an interactive television program guide
US9215504B2 (en) 2006-10-06 2015-12-15 Rovi Guides, Inc. Systems and methods for acquiring, categorizing and delivering media in interactive media guidance applications
US9294799B2 (en) 2000-10-11 2016-03-22 Rovi Guides, Inc. Systems and methods for providing storage of data on servers in an on-demand media delivery system
US9326025B2 (en) 2007-03-09 2016-04-26 Rovi Technologies Corporation Media content search results ranked by popularity
US9344768B2 (en) 1998-06-16 2016-05-17 Rovi Guides, Inc. Program guide system with real-time data sources
US9402102B2 (en) 1995-10-02 2016-07-26 Rovi Guides, Inc. System and method for using television schedule information
EP2265005B1 (en) 1998-01-23 2016-08-17 Rovi Guides, Inc. Home entertainment system and method of its operation
US9426509B2 (en) 1998-08-21 2016-08-23 Rovi Guides, Inc. Client-server electronic program guide
US9521451B2 (en) 1998-08-26 2016-12-13 Rovi Guides, Inc. Television chat system
US9591251B2 (en) 1997-10-06 2017-03-07 Rovi Guides, Inc. Interactive television program guide system with operator showcase
US9736524B2 (en) 2011-01-06 2017-08-15 Veveo, Inc. Methods of and systems for content search based on environment sampling
US9749693B2 (en) 2006-03-24 2017-08-29 Rovi Guides, Inc. Interactive media guidance application with intelligent navigation and display features
US9848276B2 (en) 2013-03-11 2017-12-19 Rovi Guides, Inc. Systems and methods for auto-configuring a user equipment device with content consumption material
US9860584B2 (en) 1998-06-16 2018-01-02 Rovi Guides, Inc. Interactive television program guide with simultaneous watch and record capabilities
US10063934B2 (en) 2008-11-25 2018-08-28 Rovi Technologies Corporation Reducing unicast session duration with restart TV

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842196A (en) * 1972-10-30 1974-10-15 Hazeltine Research Inc System for transmission of auxiliary information in a video spectrum
US4751578A (en) * 1985-05-28 1988-06-14 David P. Gordon System for electronically controllably viewing on a television updateable television programming information
US4873584A (en) * 1987-07-03 1989-10-10 Hashimoto Corporation Computer control for VCR including display of record playback listing and playback order selection
US4908707A (en) * 1987-07-20 1990-03-13 U.S. Philips Corp. Video cassette recorder programming via teletext transmissions
AU4942090A (en) * 1988-12-23 1990-08-01 Gemstar Development Corporation Apparatus and method for using encoded video recorder/player timer preprogramming information
US4977455A (en) * 1988-07-15 1990-12-11 Insight Telecast, Inc. System and process for VCR scheduling
US5038211A (en) * 1989-07-05 1991-08-06 The Superguide Corporation Method and apparatus for transmitting and receiving television program information
GB2256549A (en) * 1991-05-22 1992-12-09 Thomson Consumer Electronics Simplified programming of a videocassette recorder having multiple and single channel sources.
US5253066A (en) * 1989-06-01 1993-10-12 Vogel Peter S TV recording and viewing control system
US5260788A (en) * 1990-11-29 1993-11-09 Matsushita Electric Industrial Co., Ltd. Text broadcast receiver

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842196A (en) * 1972-10-30 1974-10-15 Hazeltine Research Inc System for transmission of auxiliary information in a video spectrum
US4751578A (en) * 1985-05-28 1988-06-14 David P. Gordon System for electronically controllably viewing on a television updateable television programming information
US4873584A (en) * 1987-07-03 1989-10-10 Hashimoto Corporation Computer control for VCR including display of record playback listing and playback order selection
US4908707A (en) * 1987-07-20 1990-03-13 U.S. Philips Corp. Video cassette recorder programming via teletext transmissions
US4977455A (en) * 1988-07-15 1990-12-11 Insight Telecast, Inc. System and process for VCR scheduling
US4977455B1 (en) * 1988-07-15 1993-04-13 System and process for vcr scheduling
AU4942090A (en) * 1988-12-23 1990-08-01 Gemstar Development Corporation Apparatus and method for using encoded video recorder/player timer preprogramming information
US5253066A (en) * 1989-06-01 1993-10-12 Vogel Peter S TV recording and viewing control system
US5253066C1 (en) * 1989-06-01 2001-05-22 United Video Properties Inc Tv recording and viewing control system
US5038211A (en) * 1989-07-05 1991-08-06 The Superguide Corporation Method and apparatus for transmitting and receiving television program information
US5260788A (en) * 1990-11-29 1993-11-09 Matsushita Electric Industrial Co., Ltd. Text broadcast receiver
GB2256549A (en) * 1991-05-22 1992-12-09 Thomson Consumer Electronics Simplified programming of a videocassette recorder having multiple and single channel sources.

Cited By (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6014184A (en) * 1993-09-09 2000-01-11 News America Publications, Inc. Electronic television program guide schedule system and method with data feed access
EP2276242A3 (en) * 1995-04-06 2011-06-01 United Video Properties, Inc. Interactive program guide systems and processes
EP1942666A2 (en) 1995-04-06 2008-07-09 United Video Properties, Inc. Interactive program guide systems and processes
EP2268009A3 (en) * 1995-04-06 2011-06-08 United Video Properties, Inc. Interactive program guide systems and processes
EP1942666A3 (en) * 1995-04-06 2011-06-08 United Video Properties, Inc. Interactive program guide systems and processes
EP2268009A2 (en) 1995-04-06 2010-12-29 United Video Properties, Inc. Interactive program guide systems and processes
EP2276242A2 (en) 1995-04-06 2011-01-19 United Video Properties, Inc. Interactive program guide systems and processes
JP2006345563A (en) * 1995-04-17 2006-12-21 Starsight Telecast Inc Merging multi-source information in television system
US8640170B2 (en) 1995-04-17 2014-01-28 Starsight Telecast, Incorporated Multi-source switching in a television system displaying source indicators
JPH11504171A (en) * 1995-04-17 1999-04-06 スターサイト・テレキャスト・インコーポレーテッド The combination of multi-source information in a television system
US8539528B2 (en) 1995-04-17 2013-09-17 Starsight Telecast, Inc. Multi-source switching in a television system
US8424040B2 (en) 1995-04-17 2013-04-16 Starsight Telecast, Incorporated Multi-source switching in a television system
US8266655B2 (en) 1995-04-17 2012-09-11 Starsight Telecast, Incorporated Multi-source switching in a television system
US20030204847A1 (en) * 1995-04-24 2003-10-30 Ellis Michael Dean Electronic television program guide schedule system and method with remote product ordering
US8732765B2 (en) 1995-04-24 2014-05-20 United Video Properties, Inc. Electronic television program guide schedule system and method with remote product ordering
EP1152605A1 (en) * 1995-06-07 2001-11-07 United Video Properties, Inc. Electronic television program guide schedule system and method with data feed access
AU700302B2 (en) * 1995-06-07 1998-12-24 Rovi Guides, Inc. Electronic television program guide schedule system and method with data feed access
US6769128B1 (en) 1995-06-07 2004-07-27 United Video Properties, Inc. Electronic television program guide schedule system and method with data feed access
WO1996041478A1 (en) * 1995-06-07 1996-12-19 Tv Guide On Screen Electronic television program guide schedule system and method with data feed access
US9124932B2 (en) 1995-10-02 2015-09-01 Rovi Guides, Inc. Systems and methods for contextually linking television program information
US9113207B2 (en) 1995-10-02 2015-08-18 Rovi Guides, Inc. Systems and methods for contextually linking television program information
US9402102B2 (en) 1995-10-02 2016-07-26 Rovi Guides, Inc. System and method for using television schedule information
US5793438A (en) * 1995-11-13 1998-08-11 Hyundai Electronics America Electronic program guide with enhanced presentation
EP1608177A2 (en) 1995-11-20 2005-12-21 United Video Properties, Inc. Interactive special events video signal navigation system
EP1608177A3 (en) * 1995-11-20 2009-11-25 United Video Properties, Inc. Interactive special events video signal navigation system
AU709919B2 (en) * 1996-02-18 1999-09-09 Hughes Electronics Corporation Method and apparatus for navigating an on-screen program guide
WO1997030547A1 (en) * 1996-02-18 1997-08-21 He Holdings, Inc. Doing Business As Hughes Electronics Method and apparatus for navigating an on-screen program guide
US5751372A (en) * 1996-02-19 1998-05-12 Hughes Electronics Method and apparatus for navigating an on-screen program guide
US9423936B2 (en) 1996-05-03 2016-08-23 Rovi Guides, Inc. Information system
US9027058B2 (en) 1996-05-03 2015-05-05 Rovi Guides, Inc. Information system
US8869204B2 (en) 1996-05-03 2014-10-21 Starsight Telecast, Inc. Method and system for displaying advertisements in an electronic program guide
US5801747A (en) * 1996-11-15 1998-09-01 Hyundai Electronics America Method and apparatus for creating a television viewer profile
US9015749B2 (en) 1997-07-21 2015-04-21 Rovi Guides, Inc. System and method for modifying advertisement responsive to EPG information
US8918807B2 (en) 1997-07-21 2014-12-23 Gemstar Development Corporation System and method for modifying advertisement responsive to EPG information
US9191722B2 (en) 1997-07-21 2015-11-17 Rovi Guides, Inc. System and method for modifying advertisement responsive to EPG information
WO1999013471A1 (en) * 1997-09-05 1999-03-18 Prevue International, Inc. System for labelling videocassettes with program information
US9438953B2 (en) 1997-09-05 2016-09-06 Rovi Guides, Inc. Program guide application interface system
US7624410B2 (en) 1997-09-05 2009-11-24 United Video Properties, Inc. Program guide application interface system
US7805742B2 (en) 1997-09-05 2010-09-28 United Video Properties, Inc. Program guide application interface system
US10205995B2 (en) 1997-09-05 2019-02-12 Rovi Guides, Inc. Program guide application interface system
US9591251B2 (en) 1997-10-06 2017-03-07 Rovi Guides, Inc. Interactive television program guide system with operator showcase
EP2265005B1 (en) 1998-01-23 2016-08-17 Rovi Guides, Inc. Home entertainment system and method of its operation
US8689259B2 (en) 1998-01-23 2014-04-01 Index Systems, Inc. Home entertainment system and method of its operation
US6564379B1 (en) 1998-04-30 2003-05-13 United Video Properties, Inc. Program guide system with flip and browse advertisements
US10063909B2 (en) 1998-04-30 2018-08-28 Rovi Guides, Inc. Program guide system with advertisements
US7039935B2 (en) 1998-04-30 2006-05-02 United Video Properties, Inc. Program guide system with flip and browse advertisements
US8397259B2 (en) 1998-04-30 2013-03-12 United Video Properties, Inc. Program guide system with advertisements
US9066147B2 (en) 1998-04-30 2015-06-23 Rovi Guides, Inc. Program guide system with advertisements
US7634786B2 (en) 1998-05-15 2009-12-15 United Video Properties, Inc. Interactive television program guide system for determining user values for demographic categories
US9635406B2 (en) 1998-05-15 2017-04-25 Rovi Guides, Inc. Interactive television program guide system for determining user values for demographic categories
US7503055B2 (en) 1998-05-15 2009-03-10 United Video Properties, Inc. Systems and methods for advertising television networks, channels, and programs
US6563515B1 (en) 1998-05-19 2003-05-13 United Video Properties, Inc. Program guide system with video window browsing
US9137579B2 (en) 1998-05-19 2015-09-15 Rovi Guides, Inc. Program guide system with video-on-demand browsing
US9860584B2 (en) 1998-06-16 2018-01-02 Rovi Guides, Inc. Interactive television program guide with simultaneous watch and record capabilities
US9344768B2 (en) 1998-06-16 2016-05-17 Rovi Guides, Inc. Program guide system with real-time data sources
US6799326B2 (en) 1998-07-07 2004-09-28 United Video Properties, Inc. Interactive television program guide system with local advertisements
US9172987B2 (en) 1998-07-07 2015-10-27 Rovi Guides, Inc. Methods and systems for updating functionality of a set-top box using markup language
US9055318B2 (en) 1998-07-14 2015-06-09 Rovi Guides, Inc. Client-server based interactive guide with server storage
US9021538B2 (en) 1998-07-14 2015-04-28 Rovi Guides, Inc. Client-server based interactive guide with server recording
US9232254B2 (en) 1998-07-14 2016-01-05 Rovi Guides, Inc. Client-server based interactive television guide with server recording
US9118948B2 (en) 1998-07-14 2015-08-25 Rovi Guides, Inc. Client-server based interactive guide with server recording
US9226006B2 (en) 1998-07-14 2015-12-29 Rovi Guides, Inc. Client-server based interactive guide with server recording
US10075746B2 (en) 1998-07-14 2018-09-11 Rovi Guides, Inc. Client-server based interactive television guide with server recording
US9154843B2 (en) 1998-07-14 2015-10-06 Rovi Guides, Inc. Client-server based interactive guide with server recording
US9055319B2 (en) 1998-07-14 2015-06-09 Rovi Guides, Inc. Interactive guide with recording
US8973056B2 (en) 1998-07-23 2015-03-03 Rovi Guides, Inc. Interactive program guide system providing an application program interface for non-program guide applications
US10003848B2 (en) 1998-07-23 2018-06-19 Rovi Guides, Inc. Interactive program guide system providing an application program interface for non-program guide applications
US9426509B2 (en) 1998-08-21 2016-08-23 Rovi Guides, Inc. Client-server electronic program guide
US9521451B2 (en) 1998-08-26 2016-12-13 Rovi Guides, Inc. Television chat system
US8931008B2 (en) 1999-06-29 2015-01-06 United Video Properties, Inc. Promotional philosophy for a video-on-demand-related interactive display within an interactive television application
EP1083746A2 (en) * 1999-09-10 2001-03-14 Canon Kabushiki Kaisha Signal processing apparatus , method and system comprising a printer
EP1083746A3 (en) * 1999-09-10 2006-12-20 Canon Kabushiki Kaisha Signal processing apparatus , method and system comprising a printer
US8843963B2 (en) 1999-10-29 2014-09-23 United Video Properties, Inc. Interactive television system with programming-related links
US8255952B2 (en) 1999-10-29 2012-08-28 United Video Properties, Inc. Interactive television system with programming-related links
US9148703B2 (en) 1999-10-29 2015-09-29 Rovi Guides, Inc. Interactive television system with programming-related links
US9137491B2 (en) 2000-02-01 2015-09-15 Rovi Guides, Inc. Methods and systems for forced advertising
US9015739B2 (en) 2000-03-31 2015-04-21 Rovi Guides, Inc. Systems and methods for improved audience measuring
US10015562B2 (en) 2000-03-31 2018-07-03 Rovi Guides, Inc. System and method for metadata-linked advertisements
US8863170B2 (en) 2000-03-31 2014-10-14 United Video Properties, Inc. System and method for metadata-linked advertisements
US9294799B2 (en) 2000-10-11 2016-03-22 Rovi Guides, Inc. Systems and methods for providing storage of data on servers in an on-demand media delivery system
US9071872B2 (en) 2003-01-30 2015-06-30 Rovi Guides, Inc. Interactive television systems with digital video recording and adjustable reminders
US9369741B2 (en) 2003-01-30 2016-06-14 Rovi Guides, Inc. Interactive television systems with digital video recording and adjustable reminders
US9191719B2 (en) 2003-11-06 2015-11-17 Rovi Guides, Inc. Systems and methods for providing program suggestions in an interactive television program guide
US9177081B2 (en) 2005-08-26 2015-11-03 Veveo, Inc. Method and system for processing ambiguous, multi-term search queries
US9113107B2 (en) 2005-11-08 2015-08-18 Rovi Guides, Inc. Interactive advertising and program promotion in an interactive television system
US9075861B2 (en) 2006-03-06 2015-07-07 Veveo, Inc. Methods and systems for segmenting relative user preferences into fine-grain and coarse-grain collections
US9092503B2 (en) 2006-03-06 2015-07-28 Veveo, Inc. Methods and systems for selecting and presenting content based on dynamically identifying microgenres associated with the content
US9128987B2 (en) 2006-03-06 2015-09-08 Veveo, Inc. Methods and systems for selecting and presenting content based on a comparison of preference signatures from multiple users
US9749693B2 (en) 2006-03-24 2017-08-29 Rovi Guides, Inc. Interactive media guidance application with intelligent navigation and display features
US9215504B2 (en) 2006-10-06 2015-12-15 Rovi Guides, Inc. Systems and methods for acquiring, categorizing and delivering media in interactive media guidance applications
US9326025B2 (en) 2007-03-09 2016-04-26 Rovi Technologies Corporation Media content search results ranked by popularity
US10063934B2 (en) 2008-11-25 2018-08-28 Rovi Technologies Corporation Reducing unicast session duration with restart TV
US9166714B2 (en) 2009-09-11 2015-10-20 Veveo, Inc. Method of and system for presenting enriched video viewing analytics
US9736524B2 (en) 2011-01-06 2017-08-15 Veveo, Inc. Methods of and systems for content search based on environment sampling
US8949901B2 (en) 2011-06-29 2015-02-03 Rovi Guides, Inc. Methods and systems for customizing viewing environment preferences in a viewing environment control application
US9125169B2 (en) 2011-12-23 2015-09-01 Rovi Guides, Inc. Methods and systems for performing actions based on location-based rules
US9848276B2 (en) 2013-03-11 2017-12-19 Rovi Guides, Inc. Systems and methods for auto-configuring a user equipment device with content consumption material

Also Published As

Publication number Publication date
AU7718394A (en) 1995-03-22

Similar Documents

Publication Publication Date Title
JP4083525B2 (en) Electronic TV program guide
US7493639B2 (en) Interactive program summary panel
AU732377B2 (en) System and method for processing audio-only programs in a television receiver
US7028326B1 (en) Method and interface for linking terms in an electronic message to program information
US6532589B1 (en) Method and apparatus for providing a calendar-based planner in an electronic program guide for broadcast events
JP5345170B2 (en) Electronic TV program schedule system
US6687906B1 (en) EPG with advertising inserts
JP3098215B2 (en) Control system for a video recording device
ES2260035T3 (en) Television program recording device using an electronic programming guide.
JP4361135B2 (en) Improvement of TV signal receiver
US6577350B1 (en) Method and apparatus for displaying an electronic program guide
US7849483B2 (en) Guide system and method of operation
KR100478110B1 (en) How to display the television programs and related text and devices
KR101132601B1 (en) System and method for advertising a currently airing program through the use an electronic program guide interface
EP0424469B1 (en) System and process for vcr scheduling
EP0384388B1 (en) Automatically activated commercial message timer
JP4018144B2 (en) Improved television tuning system
JP3877801B2 (en) Television receiver, notification system and notification method
CA2245573C (en) Method and apparatus for displaying textual or graphic data on the screen of television receivers
US5671019A (en) Character information display apparatus for a partial and a full-screen display
KR100357048B1 (en) Television receiver channel selection method and apparatus for
CN1223184C (en) Method and interface for incorporating program information into electronic message, system for transferring program information via electronic message and electronic message receiver
JP4237262B2 (en) television
US6426779B1 (en) Method and apparatus for providing favorite station and programming information in a multiple station broadcast system
CN1134980C (en) Multiple source keyboard channel entering system and method

Legal Events

Date Code Title Description
AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE MW SD AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

AK Designated states

Kind code of ref document: A1

Designated state(s): AM AT AT AU BB BG BR BY CA CH CN CZ CZ DE DE DK DK EE ES FI FI GB GE HU JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW NL NO NZ PL PT RO RU SD SE SI SK SK TJ TT UA US UZ VN

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase in:

Ref country code: CA

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642