WO1993022872A1 - Programmation d'enregistrement d'emissions de television au moyen de codes comprimes - Google Patents

Programmation d'enregistrement d'emissions de television au moyen de codes comprimes Download PDF

Info

Publication number
WO1993022872A1
WO1993022872A1 PCT/US1993/004097 US9304097W WO9322872A1 WO 1993022872 A1 WO1993022872 A1 WO 1993022872A1 US 9304097 W US9304097 W US 9304097W WO 9322872 A1 WO9322872 A1 WO 9322872A1
Authority
WO
WIPO (PCT)
Prior art keywords
remote control
channel
data
receiving
commands
Prior art date
Application number
PCT/US1993/004097
Other languages
English (en)
Inventor
Henry C. Yuen
Daniel S. Kwoh
Kar Cheong Cho
Original Assignee
Yuen Henry C
Kwoh Daniel S
Kar Cheong Cho
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
Application filed by Yuen Henry C, Kwoh Daniel S, Kar Cheong Cho filed Critical Yuen Henry C
Priority to EP93910956A priority Critical patent/EP0715797A1/fr
Priority to CA002134344A priority patent/CA2134344C/fr
Priority to JP5519550A priority patent/JPH07508848A/ja
Priority to PL93307338A priority patent/PL172141B1/pl
Publication of WO1993022872A1 publication Critical patent/WO1993022872A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape

Definitions

  • This invention relates generally to video cassette recorder systems and particularly to the timer preprogramming feature of video cassette recorders (VCRs) and to an apparatus and method for using encoded information to shorten the time required to perform timer preprogramming and an apparatus and method of embedding the decoding of the encoded information in a television receiver, video cassette recorder, cable box and satellite receiver.
  • VCRs video cassette recorders
  • the video cassette recorder has a number of uses, including playing back of tapes filmed by a video camera, playing back of pre-recorded tapes, and recording and playing back of broadcast and cable television programs.
  • CDTL information can be programmed in various ways including: (i) pushing an appropriate sequence of keys in the console according to instructions contained in the user's manual, (ii) pushing an appropriate sequence of keys in a remote hand-held control unit according to instructions contained in the user's manual
  • CDTL and certain power/clock/timer on-of commands are generally common although the detailed protocol can vary with different model VCRs.
  • Methods (i) and (ii) described above can require up to 100 keystrokes, which has inhibited the free use of the timer preprogramming feature of VCRs.
  • new VCR models have included an "On-Screen Programming" feature, which permits remote input of CDTL information in response to a menu displayed on the television screen.
  • On-Screen Programming which permits remote input of CDTL information in response to a menu displayed on the television screen.
  • Generally on screen programming of CDTL information requires an average of about 18 keystrokes, which is less than some of the prior methods but still rather substantial.
  • Some of the other techniques such as (iv) above require the use of special equipment such as a bar code reader.
  • a principal object of the invention is to provide an improved system for the selection and entering of channel, date, time and length (CDTL) information required for timer preprogramming of a VCR which is substantially simpler, faster and less error-prone than present techniques.
  • Another principal object of the invention is to provide televisions having an embedded capability for timer programming control.
  • the timer preprogramming feature of a video system there is an apparatus and method for using encoded video recorder/player timer O preprogramming information.
  • the purpose is to significantly reduce tiie number of keystrokes required to set up the timer preprogramming feature on a VCR.
  • a decoding means Built into either the remote controller or the VCR is a decoding means which automatically converts the code into
  • the proper CDTL programming information and activates the VCR to record a given television program with the corresponding channel, date, time and length.
  • multiple codes can be entered at one time for multiple program selections.
  • the code can be printed in a television program guide in advance and selected for use with a VCR or remote controller with the decoding means.
  • Another principal object of the invention is to embed the decoding means into a television.
  • the television would then at the appropriate time distribute the proper commands to a VCR and a cable box to record the desired program.
  • the user would use the television remote or controls on the television to enter the code that signifies the program to be 5 recorded.
  • the same television remote and controls on the television would also be used to perform normal television control functions, such as channel selection.
  • the codes are entered they are transmitted to the television and the decoder in the television, which decodes the codes into CDTL information and then the codes themselves and the CDTL information could be displayed "on screen" so that the user can verify that the proper codes have been
  • the television would transmit the proper commands to a VCR and a cable box, if necessary, to command the recording of the selected program.
  • This control function can be carried out by using an infrared link by placing infrared transmitters on the television cabinet, preferably at the corners.
  • Another principal object of the invention is to embed the decoding means into various equipments associated with television, such as a video cassette recorder, cable box or satellite receiver.
  • the decoding means would only have to be present in one of the equipments, such as the cable box, which would then at the appropriate time distribute the proper commands to the other equipments such as a VCR and a satellite receiver to record the desired program.
  • the user would use the television remote or controls on the equipment with the decoder to enter the code that signifies the program to be recorded.
  • the same television remote would also be used to perform normal television control functions, such as channel selection.
  • the equipment with the decoder When the codes are entered they are transmitted to the equipment with the decoder, which decodes the codes into CDTL information. Then at the appropriate time the equipment with the decoder would transmit the proper commands to a the other equipment such as a VCR, satellite receiver and a cable box to command the recording of the selected program.
  • This control function can be carried out by using an infrared link by coupling infrared transmitters on the equipment with the decoder.
  • the infrared transmitter can be placed in a infrared dome on the equipment, mounted behind the front panel, attached to a mouse coupled via a cable to the equipment with the decoder with the mouse placed near the receiver, or attached to a stick on miniature mouse coupled via a cable to the equipment with the decoder with the miniature mouse attached to the device with the receiver.
  • the equipment with the decoder would include the capability of storing or learning the infrared code protocols for the other equipment, such as a VCR, satellite receiver and a cable box.
  • FIG. 1 is a schematic showing apparatus according to this invention with the code decoder means embedded in the video cassette recorder;
  • FIG. 2 is a schematic of the VCR embedded processors for command control and code decoding
  • FIG. 3 is a schematic showing a preferred embodiment according to this invention with the code decoder means embedded in a remote controller;
  • FIG. 4 is a schematic of the processor embedded in the remote controller
  • FIG. 5 is a schematic of a universal remote controller with the code decoder means embedded in the universal remote controller;
  • FIG. 6 is a flow graph of the G-code decoding technique
  • FIG. 7 is a flow graph of the G-code encoding technique
  • FIG. 8 is an illustration of part of a television calendar according to this invention.
  • 5 FIG. 9 is a flowchart for decoding for cable channels;
  • FIG. 10 is a flowchart for encoding for cable channels
  • FIG. 11 is a flow graph of the G-code decoding for cable channels including conversion from assigned cable channel number to local cable carrier channel number;
  • FIG. 12 is a means for decoding including a stack memory
  • FIG. 13 is a flowchart for program entry into stack memory
  • FIG. 14 is an operation flowchart for sending programs from remote control to main unit VCR;
  • FIG. 15 is a perspective view of an apparatus for using compressed codes for recorder 5 preprogramming according to a preferred embodiment of the invention.
  • FIG. 16 is a front view of the apparatus of FIG. 15 showing a forward facing light emitting diode
  • FIG. 17 is a perspective view of the apparatus of FIG. 15 placed in a mounting stand;
  • FIG. 17A is a front elevational view of the apparatus of FIG. 15 placed in the
  • FIG. 18 is a detail of the LCD display of the apparatus of FIG. 15;
  • FIG. 19 is a perspective view showing a manner of placing the apparatus of FIG. 15 relative to a cable box and a VCR
  • _ _ FIG. 20 is a perspective view showing a manner of placing the mounting stand with the apparatus of FIG. 15 mounted thereon near a cable box and VCR
  • FIG. 21 is a schematic showing apparatus for using compressed codes for recorder preprogramming according to a preferred embodiment of the invention
  • FIG. 22 is a detailed schematic showing a preferred embodiment of apparatus implementing the schematic of FIG. 21;
  • FIG. 23 is a flow graph for program entry into the apparatus of FIG. 15;
  • FIG. 24 is a flow graph for review and program cancellation of programs entered into the apparatus of FIG. 15;
  • FIG. 25 is a flow graph for executing recorder preprogramming using compressed 0 codes according to a preferred embodiment of the invention.
  • FIG. 26 is a flow graph for encoding program channel, date, time and length information into decimal compressed codes
  • FIG. 27 is a flow graph for decoding decimal compressed codes into program channel, date, time and length information
  • 5 FIG. 28 is an embodiment of an assigned channel number/local channel number table
  • FIG. 29 block diagram of a system including a television having a G-code decoder
  • FIG. 30 is a schematic of a television having a G-code decoder
  • FIG. 31 is a schematic showing apparatus for a G-code decoder in a television having G-code decoding
  • FIG. 32 is a block diagram of a system including a television having a G-code decoder, a VCR, a cable box and a satellite receiver;
  • FIG. 33 is a block diagram of a system including a VCR having a G-code decoder, a television, a cable box and a satellite receiver;
  • FIG.34 is a block diagram of a system including a cable box having a G-code decoder, a television, a VCR, and a satellite receiver;
  • FIG. 35 is a block diagram of a system including a satellite receiver having a G-code decoder, a television, a VCR, and a cable box;
  • FIG. 36 is a perspective view showing a cable box placed on top of a VCR having an
  • FIG. 37 is a perspective view showing a cable box placed on top of a VCR having an infrared transmitter inside a infrared dome on the top of the VCR which communicates to the
  • FIG. 38 is a perspective view of a VCR having an infrared transmitter inside a mouse coupled via a cable to the VCR with the mouse placed near the cable box infrared receiver;
  • FIG. 39 is a perspective view of a VCR having an infrared transmitter inside a miniature mouse coupled via a cable to the VCR with the miniature mouse stuck onto the cable box near the infrared receiver.
  • FIG. 40 is a perspective view of a second apparatus for using compressed codes for recorder preprogramming according to a preferred embodiment of the invention.
  • FIG. 41 is a bottom view of the apparatus of FIG. 41 showing a microphone hole and two electrical contact holes.
  • FIG. 42 shows the apparatus of FIG. 40 being used in conjunction with a telephone.
  • FIG. 43 is a schematic showing second apparatus for using compressed codes for recorder preprogramming according to a preferred embodiment of the invention.
  • FIG. 44 is an alternate schematic showing second apparatus for using compressed codes for recorder preprogramming according to a preferred embodiment of the invention.
  • FIG. 45 is a perspective view of an apparatus for programming remote controls with memories according to a preferred embodiment of the invention.
  • FIG. 46 is a perspective view of the apparatus of FIG. 45 with the hinged lid in the open position.
  • FIG. 47 is a rear view of the apparatus of FIG. 45 showing telephone and computer input/output ports.
  • FIG. 48 is a bottom view of the apparatus of FIG. 15 showing electrical contact access 5 holes.
  • FIG. 49 is a perspective view of the apparatus of FIG. 45 coupled to an apparatus according to FIG. 15.
  • FIG. 50 is a perspective view of the apparatus of FIG. 45 coupled to an apparatus according to FIG. 40.
  • FIG. 51 is a schematic showing apparatus for programming remote controls with memories according to a preferred embodiment of the invention.
  • FIG. 52 is a schematic showing the electronic connection between apparatus for programming remote controls with memories according to a preferred embodiment of the , _ invention and a personal computer. Detailed Description
  • the primary components include a remote controller 12 and a video cassette recorder/player with G-code decoder 14, which can be controlled by remote controller 12 via a command signal 16.
  • the remote controller 12 can have a number of keys, which include numerical keys 20, G-code switch 22, function keys 24, program key 26 and power key 27.
  • the remote controller 12 is essentially the same as any other remote controller in function.
  • the G-code switch 22 is provided just to allow the user to lock the remote controller 12 in the G-code mode while using a G-code, which is the name given to the compressed code which is the encoded CDTL information, to perform timer preprogramming.
  • a G-code consists of 1 to 7 digits, although more could be used, and is associated with a particular program.
  • a user would look up the G-code in a program guide and just enter the G-code on the remote controller 12, instead of the present state of the art, which requires that the user enter the actual channel, date, time and length (CDTL) commands.
  • PROG 2 1 1507 30 208 00 204 PROG
  • the first program (PROG) key 26 enters the programming mode. Then a sequence of numerical keys 20 are pushed. The 2 means it is timer recording rather than time setting. The 1 means the user is now entering the settings for program 1. The 15 is the date. The
  • the 07 is starting hour.
  • the 30 is a starting minute.
  • the 2 means pm.
  • the next sequence 08 00 2 is the stopping time.
  • the 04 is channel number.
  • the PROG is hit again to exit the program mode.
  • the G-code switch 22 should be turned to the "ON" position. Instead of having a switch, a separate key “G” can be used.
  • the G-code programming keystroke sequence would then be: G 1138 PROG.
  • G-code does not preclude "on-screen” confirmation of the program information that has been entered.
  • keystrokes "PROG 1138 PROG” are entered with the G-code switch in the "ON" position, the G-code would be decoded and the television could display the following message:
  • a video cassette recorder/player with G-code decoder 14 is provided to be used in conjunction with remote controller 12.
  • the command signal 16 sent from the remote controller 12 is sensed by the photodiode 32 and converted to electrical signals by command signal receiver 30.
  • the electrical signals are sent to a command controller 36, which interprets the commands and determines how to respond to the commands.
  • the command controller 36 it is also possible for the command controller 36 to receive commands from the manual controls 34 that are normally built into a VCR. If the command controller 36 determines that a G-code was received then the G-code will be sent to the G-code decoder 38 for decoding.
  • the G-code decoder 38 converts the G-code into CDTL information, which is used by the command controller 36 to set the time/channel programming 40.
  • a clock 42 Built into the VCR is a clock 42. This is normally provided in a VCR and is used to keep track of the date and time.
  • the clock 42 is used primarily by the time/channel programming 40 and the G-code decoder 38 functions.
  • the time/channel programming 40 function is set up with CDTL information by the command controller 36.
  • the time/channel programming 40 function turns the record/playback 44 function "ON" to record.
  • the tuner 46 is tuned to the proper channel in the television signal 18. Later the user can command the record/playback 44 function to a playback mode to watch the program via the television monitor 48.
  • An alternate way to control the recorder is to have the command controller 36 keep all the CDTL information instead of sending it to the time/channel programming 40.
  • the command controller would also keep track of the time by periodically reading clock 42.
  • the command controller would then send commands to the time/channel programming 40 to turn on and off the recorder and to tuner 46 to cause it to tune to the right channel at the right time according to the CDTL information.
  • the clock 42 is also an input to G-code decoder 38, which allows the G-code decoding to be a function of the clock, which lends a measure of security to the decoding technique and makes it harder to copy. Of course this requires that the encoding technique must also be a function of the clock.
  • command controller 36 A possible realization of the command controller 36 and the G-code decoder 38 is shown in FIG.2.
  • the command controller 36 function can be realized with a microprocessor
  • the input/output 56 function is adapted to receive commands from the command signal receiver 30, the manual controls 34 and the clock 42, and to output signals to a display 35, the clock 42, and the time/channel programming 40 function. If the microprocessor 50 interprets that a G-code has been received, then the G-code is sent to microcontroller 60 for decoding.
  • the microcontroller 60 has an embedded random access memory 62 and an embedded read only memory 64 for program and table storage.
  • the clock 42 can be read by both microprocessor 50 and microcontroller 60.
  • An alternative to having microcontroller 60 perform the G-code decoding is to build the G-code decoding directly into the program stored in read only memory 54. This would eliminate the need for microcontroller 60. Of course, other hardware to perform the G-code decoding can also be used. The choice of which implementation to use is primarily an economic one.
  • Figs. 1 and 2 are well known in the prior art and are present in the following patents: Fields, patent no.4,481,412; Scholz, patent no.4,519,003; and Brugliera, patent no. 4,631,601.
  • clock 42 is analogous to element 7 in Scholz and element 17 in Brugliera.
  • command signal receiver 30 and Scholz 14 and Brugliera 12 tuner 46 and Scholz 6 and Brugliera 10; time/channel programming 40 and Scholz 8, 11 and Brugliera 16; record & playback 44 and Scholz 1, 2, 4; command controller 36 and Scholz 11, 10 and Brugliera 12; microprocessor 50 and Fields 27; RAM 52 and Fields 34; ROM 54 and Fields 33; manual controls 34 and Scholz 15, 16; and remote controller 12 and Scholz 26 and Brugliera 18.
  • FIG. 3 illustrates an alternate preferred embodiment of this invention.
  • a remote controller with embedded G-code decoder 80 is provided.
  • the remote controller with embedded G-code decoder 80 is very similar to remote controller 12, except for the addition of the G-code decoder 82. Note that it is also possible in any remote controller to provide a display 84.
  • the remote controller with embedded G-code decoder 80 would be used in conjunction with a normal video cassette recorder/player 70, which would not be required to have an embedded G-code decoder.
  • the numerals for the subelements of video cassette recorder/player 70 are the same as described above for the video cassette recorder/player with G-code decoder 14 and have the same function, except for the absence of G-code decoder 38.
  • This preferred embodiment has the advantage that it can be used in conjunction with VCRs that are presently being used. These do not have a G-code decoding capability. Replacing their remote controllers with ones that have this capability built-in can vastly improve the capability to do timer preprogramming for a modest cost.
  • FIG. 4 illustrates a possible realization of the G-code decoder 82 built into the remote controller with embedded G-code decoder 80.
  • a microcontroller 60 can be used as before to decode the G-code, as well as interface with the display 84, a clock 85, the keypad 88 and the light emitting diode 28. Alternately, other hardware implementations can be used to perform the G-code decoding.
  • the clock 85 is provided in the remote controller 80 so that the G-code decoder 82 can be made to have the clock 85 as one of its inputs. This allows the G-code decoding to be a function of the clock 85, which lends a measure of security to the decoding technique and makes it harder to copy.
  • the remote controller with embedded G-code decoder as described above would send channel, date, time and length information to the video cassette recorder/player 70, which would use the CDTL information for tuning into the correct channel and starting and stopping the recording function.
  • the remote controller may have to be unique for each different video cassette recorder/player, because each brand or model may have different infrared pulses for each type of information sent such as the channel number keys and start record and stop record keys.
  • the particular infrared pulses used for each key type can be called the vocabulary of the particular remote controller.
  • Each model may also have a different protocol or order of keys that need to be pushed to accomplish a function such as timer preprogramming. The protocol or order of keys to accomplish a function can be called sentence structure.
  • the proper vocabulary and sentence structure can be built directly into the remote controller.
  • the remote controller not only performs the G-code decoding to CDTL, but also keeps track of time via clock 85, then it is possible for the remote controller to send just channel, start record and stop commands to the video cassette recorder/player.
  • the channel, start and stop are usually basic one or two key commands, which means there is no complicated protocol or sentence structure involved.
  • the remote controller such as ROM 64 of FIG. 4, for storing the protocol for all the models or at least a large subset.
  • the G-code would be entered on the remote controller as before and decoded into channel, date, time and length information, which would be stored in the remote controller. Via clock 85, the time would be checked and when the correct time arrives the remote controller would automatically send out commands to the VCR unit for tuning to the correct channel and for starting and stopping the recording. It is estimated that only two (2) bytes per key for about
  • Another preferred embodiment is to provide a universal remote controller 90 with an embedded G-code decoder.
  • Universal remote controllers provide the capability to mimic a number of different remote controllers. This reduces the number of remote controllers that a user needs to have. This is accomplished by having a learn function key 94 function on the universal remote controller, as shown in FIG. 5. If the learn function key 94 is pushed in conjunction with another key, the unit will enter into the learn mode. Incoming infra-red (IR) pulses from the remote controller to be learned are detected by the infra-red photod ⁇ ode 96, filtered and wave-shaped into recognizable bit patterns before being recorded by a microcontroller into a battery-backed static RAM as the particular IR pulse pattern for that particular key.
  • IR infra-red
  • the microcontroller 20 should recognize it is now in the execute mode. If the key is one of the direct command keys, the microcontroller will read back from its static RAM the stored pulse sequence and send out command words through the output parallel I/O to pulse the output light emitting diode 28. If the key is the PROG key and the G-code switch is "OFF", then the microcontroller should recognize the following keys up to the next PROG key as a timer
  • G-code switch 22 is set to "ON" and the program key 26 is pushed, the microcontroller should recognize the following keys up to the next PROG key as a G-code command for timer preprogramming. It will decode the G-code into channel, date, start time and length (CDTL) and the microcontroller will then look up in it's static RAM "dictionary" the associated infra-red pulse patterns and concatenate them together before sending them off through the output parallel I/O to pulse the light emitting diode 28 to send the whole message in one continuous stream to the VCR.
  • FIG. 4 illustrates a possible realization of the G-code decoder 92 that could be built
  • the G-code decoding can be performed with other hardware implementations.
  • the universal remote controller can also be used in another manner to simplify the
  • the universal remote controller performs not only the G-code decoding to CDTL, but also keeps track of time via clock 85 in FIG. 4, then it is possible for the universal remote controller to send just channel, start record and stop commands to the video cassette recorder/player,
  • FIG. 6 is a flow diagram of a preferred G-code decoding technique.
  • FIG. 7 is the
  • the encoding of the G-codes can be done on any computer and is done prior to preparation of any program guide that would include G-codes. For each program that will
  • the priority vector storage 122 contains four tables: a priority vector C table 124, a priority vector D table 126, a priority vector T table 128 and a priority vector L table 130.
  • the channel priority table is ordered so that the most frequently used channels have a low priority number.
  • An example of the data that is in priority vector C table 124 follows. channel 4 7 2 3 5 6 11 13 ... priority 0 1 2 3 4 5 6 7 ...
  • the dates of a month all have an equal priority, so the low number days in 0 a month and the low number priorities would correspond in the priority vector D table as in the following example.
  • the priority of the start times would be arranged so that prime time would have a low priority number and programs in the dead of the night would have a high priority number.
  • the priority vector T table would contain: 0 time 6:30pm 7:00pm 8:00pm 7:30pm ... priority 0 1 2 3
  • An example of the data that is in the priority vector L table 130 is the following: 5 length of program (hours) 0.5 1.0 2.0 1.5 3.0 ... priority 0 1 2 3 4 ...
  • CDTL channel date time length
  • Step 150 converts C ⁇ D ⁇ T,,,]--- data to binary numbers. The number of binary bits tract - in each conversion is determined by the number of combinations involved. Seven bits for C p , which can be denoted as C 7 C 6 C s C 4 C 3 C 2 C Pain would provide for 128 channels.
  • D p Five bits for D p , which can be denoted as D 5 D 4 D 3 D 2 D l5 would provide for 31 days in a month.
  • T p Six bits for T p , which can be denoted as T 6 T 5 T 4 T 3 T 2 T l5 would provide for 48 start times on each half hour of a twenty four hour day.
  • bit hierarchy key 120 which can be stored in read only memory 64 to reorder the 22 bits.
  • the bit hierarchy key 120 can be any ordering of the 22 bits.
  • the bit hierarchy key might be:
  • the bit hierarchy key is ordered so that programs most likely to be the subject of timer preprogramming would have a low value binary number, which would eliminate keystrokes for timer preprogramming the most popular programs. Since all the date information has equal priority, then the D 5 D 4 D 3 D 2 D_ bits are first. Next T t Cj L_ are used, because for whatever date it is necessary to have a time channel and length and T_ C_ L_ are the most probable in each case due to the ordering of the priority vectors in priority vector storage 122. The next bit in the hierarchy key is determined by the differential probabilities of the various combinations. One must know the probabilities of all the channels, times and lengths for this calculation to be performed.
  • the probability for channels may be:
  • the probabilities for times might be:
  • the probabilities for lengths might be: length of program (hours) 0.5 1.0 2.0 1.5 3.0 ... priority 0 1 2 3 4 ... probability( ) 50 20 15 5 4 ...
  • the probabilities associated with each channel, time and length, as illustrated above, are used to determine the proper ordering. Since the priority vector tables are already ordered by the most popular channel, time, and length, the order in which to select between the various binary bits for one table, for example selecting between the C 7 C 6 C 5 C 4 C 3 C 2 C, bits, is already known. The C, bit would be selected first because as the lowest order binary bit it would select between the first two entries in the channel priority table. Then the C 2 bit would be selected and so on. Similarly, the T- and L, bits would be used before any of the other time and length bits.
  • a combination of the C comfortably T,, L, and D 5 D 4 D 3 D 2 D- bits should be used first, so tb.u all the information is available for a channel, date, time and length.
  • the D 5 D 4 D 3 D 2 1 bits are all used because the date bits all have equal priority and all are needed to specify a date even if some of the bits are binary zero.
  • the bit hierarchy key could be:
  • bit hierarchy key starts with the least significant bit D, and then is filled in with the highest differential probability bits. This is for the purpose of constructing the most compact codes for popular programs.
  • bit hierarchy key can be just some arbitrary sequence of the bits. It is also possible to make the priority vectors interdependent, such as making the length priority vector dependent on different groups of channels- Another technique is to make the bit hierarchy key 120 and the priority vector tables 122, a function of clock 42, as shown in FIG. 7. This makes it very difficult for the key and therefore the coding technique to be duplicated or copied.
  • bit hierarchy key 120 For example it is possible to scramble the date bits in the bit hierarchy key 120 as a function of the clock. Changing the order of the bits as a function of the clock would not change the effectiveness of the bit hierarchy key in reducing the number of binary bits for the most popular programs, because the date bits all are of equal priority. This could be as simple as switching the D, and D 5 bits periodically, such as every day or week. Thus the bit hierarchy key 120 would switch between
  • the priority vector tables could also be scrambled as a function of the clock. For example, the first two channels in the priority channel table could just be swapped periodically. If this technique is followed, then the C p of 148 in FIG. 7 would change as a function of the clock 42. For example,
  • bit hierarchy key 120 is determined and stored.
  • step 154 the binary bits of C p ,D p ,T p ,L p are rearranged according to the bit hierarchy key 120 to create one 22 bit binary number. Then the resulting 22 bit binary number is converted to decimal
  • the first step 102 is to enter G-code 104.
  • the G-code 104 is converted to a 22 bit binary number in step 106.
  • the bits are reordered in step 108 according to the bit hierarchy key 120 to obtain the reordered bits 110.
  • the bits are grouped together and converted to decimal form in step 112.
  • C p ,D p ,T p ,L p data 114 which are the indices to the priority vector tables.
  • the vector 4 9 1 3 This C p ,D p ,T p ,L p data 114 is then used in step 116 to lookup 0 channel, date, time, and length in priority vector storage 122.
  • the CDTL 118 for the example above is 5 10 19.00 1.5, which means channel 5, 10th day of the month, 7:00 PM, and 1.5 hours in length-
  • the coding technique is a function of the clock then it is also necessary to make the decoding technique a function of the clock. It is possible to make the bit hierarchy key 120 and the priority vector tables 122, a function of clock 42, as shown in FIG. 6. This again makes it very difficult for the key and therefore the coding technique to be duplicated or copied. It is also possible to have the decoding and encoding techniques dependent on any other predetermined or preprogrammable algorithm.
  • a mixed radix number system can avoid this result. For example, for the case of 35 channels, a mixed radix number system with the factors of 7 1 and
  • ,,,_ 5° can represent 35 combinations without any empty space in the code.
  • the allowed numbers for the 7 1 factor are 0, 1, 2, 3, and 4.
  • the allowed numbers for the 5° factor are 0, 1, 2, 3,
  • digital 0 is represented in the mixed radix number system as 00.
  • the digital number 34 is represented in the mixed radix number system as 46, because
  • Binary numbers are easier to represent in a computer and use of a fixed radix number system such as binary numbers allows a pyramid of prioritization to be easily represented in the hierarchy key.
  • Another feature that is desirable in all of the embodiments is the capability to key in the G-code once for a program and then have the resulting CDTL information used daily or weekly. Ordinarily the CDTL information is discarded once it is used. In the case of daily or weekly recording of the same program, the CDTL information is stored and used until it is cancelled.
  • the desire to repeat the program daily or weekly can be performed by having a "WEEKLY" or "DAILY" button on the remote controller or built into the VCR manual controls.
  • Another way is to use one key, such as the PROG key and push it multiple times within a certain period of time such as twice to specify daily or thrice to specify weekly. For example, if the G-code switch is "ON" and the G-code for the desired program is 99 then daily recording of the program can be selected by the following keystrokes:
  • PROG 99 DAILY PROG or by:
  • PROG 99 PROG PROG The G-code 99 would be converted to CDTL information, which would be stored and used daily in this case. The recording would begin on the date specified and continue daily after that using the same channel time and length information. A slight twist is that daily recording could be automatically suspended during the weekends, because most daily programs are different on Saturday and Sunday.
  • CDTL daily or weekly entry
  • a television calendar 200 according to this invention is illustrated in FIG. 8. As shown, the television calendar has multiple day of year sections 202, multiple day sections
  • a compressed code indication 212 or G-code containing the channel, date, time and length information for that entry in the television calendar.
  • FIG. 8 shows how easy it is to perform timer programming. All one needs to do is find the program one wants to watch and enter the compressed code shown in the compressed code indication. This is in contrast to having to deal with all the channel, date, time and length entries separately. At least the channel, date and time are explicitly stated in the television guide. The length is usually only available by searching the guide to find the time of day section 206 where a new program begins and then performing some arithmetic to find the length of the program. Using the compressed G-code avoids all these complications.
  • all the cable channels would be permanently assigned a unique number, which would be valid across the nation. For example, we could assign ESPN to cable channel 1, HBO as cable channel 2, SHO as cable channel 3, etc. This assignment would be published by the television guide publications.
  • the video cassette recorder apparatus such as the remote controller, the VCR unit or both, could then be provided with two (2) extra modes: "set” and "cable channel".
  • One way of providing the user interface to these modes would be to provide two (2) extra buttons: one called SET and one called CABLE CHANNEL.
  • the buttons could be located on the video cassette recorder unit itself or located on a remote controller, as shown in FIGs 1, 3 and 5, where SET is element 168 and CABLE CHANNEL is element 170.
  • SET element 168
  • CABLE CHANNEL is element 170.
  • other user interfaces are possible.
  • This "setting" procedure would relate each of the assigned numbers for each cable channel to the channel number of the local cable carrier. For example, suppose that the local cable carrier uses channel 6 for ESPN, then cable channel number 1 could be assigned to ESPN, as shown in the following table.
  • buttons on his remote controller as follows:
  • the "setting" procedure would create a cable channel address table 162, which would be loaded into RAM 52 of command controller 36.
  • the cable channel address table 162 would have the following information.
  • the TV viewer can now select cable channels for viewing by the old way: e.g., pushing the key pad buttons 24 will select HBO. He can also do it the new way: e.g., by pushing CABLE CHANNEL 2, which will also select HBO.
  • the advantage of the new way is that the television guide will publish [C2] next to the program description, so the viewer will just look up the assigned channel number identifier instead of having to remember that HBO is local cable channel 24.
  • command controller 36 knows that it will look up the local cable channel number in cable channel address table 162 to tune the VCR to the correct channel.
  • a way to differentiate between broadcast and cable channels is to add an eighth channel bit, which would be set to Ofor normal broadcast channels and 1 for cable channels such as HBO.
  • This eighth channel bit could be one of the low order bits such as the third bit C, out of the eight channel bits, so that the number of bits to specify popular channels is minimized, whether they be normal
  • the 7 other bits can be decoded according to priority vector C table 124.
  • the 7 other bits can be decoded according to a separate cable channel priority vector table 160, which could be stored in
  • the cable channel priority vector table can be set ahead of
  • the (4679) is the G-code indication for this particular program.
  • FIG. 8 shows a section of a television guide.
  • the cable channels all have an assigned cable channel number 188 in front of the cable channel mnemonic.
  • the cable channel information is arranged the same as the broadcast channels with a compressed G-code 212 associated with the channel.
  • the viewer need only enter the number 4679 according to the unit's G-code entry procedure, e.g., PROG 4679 PROG.
  • the G-code decoder unit will decode this G-code into "cable channel 2" and will also signal the command controller 36 with a cable channel signal 164, as shown in FIGs. 1 and 2, because the extra channel bit will ⁇ » be "1 " which distinguishes that the G-code is for a cable channel; then, since the association of "cable channel 2" with channel 24 has been established earlier in the "setting” procedure, the command controller, if it has received a cable channel signal, will immediately look up 2 in the cable channel address table 162 to translate it to cable channel 24, which will be used as the recording channel at the appropriate time.
  • the G-code for that program will be valid in the whole local area, which may have many different cable carriers each of which may have different local cable channel numbers.
  • the decoding and encoding algorithms are as shown in FIGs 9 and 10, respectively.
  • the encoding should be explained first before the decoding.
  • the primary change in FIG. 10 from FIG. 7 is that a cable channel priority vector table 160 has been added and is used in look up priority step 180 if a cable channel is being encoded. Also if a cable channel is being encoded then the cable channel bit is added in the correct bit position in the convert C-D P T P L-. to binary numbers step 182.
  • bit C 3 This could be bit C 3 , as discussed before.
  • the bit hierarchy key could be determined as before to compress the number of bits in the most popular programs; however, it needs to be 23 bits long to accommodate the cable channel bit.
  • test cable channel bit 174 is added and effectively tests the cable channel bit to determine if it is a "1". If so then the command controller 36 is signaled via cable channel signal 164 of FIGs. 1 and 2 that the CDTL 118 that will be sent to it from G-code decoder
  • the command controller 38 is for a cable channel. Then the command controller knows to look up the local cable carrier channel number based on the assigned cable channel number. In step 176 of FIG. 9, the priority vector tables including the cable channel priority vector table 160 are used to look up the CDTL 118 information.
  • FIG. 11 shows the implementation of the entire decode algorithm if this step is included. All that needs to be added is convert assigned channel to local cable carrier channel step 166, which performs a lookup in cable channel address table 162, if the cable channel bit indicates that a cable channel is involved. Step 166 effectively replaces step 174 in FIG. 9.
  • Another issue that needs addressing is the number of programs that can be preprogrammed. Since the G-code greatly simplifies the process of entering programs, it is likely that the user will quickly learn and want to enter a large number of programs; however, some existing VCRs can only store up to four (4) programs, while some can store as many as eight. Thus, the user may get easily frustrated by the programming limitations of the VCR.
  • One approach to this problem is to perform the compressed G-code decoding in the remote controller and provide enough memory there to store a large number of programs, e.g., 20 or 40.
  • the remote controller would have the capability of transferring periodically several of these stored programs at a time to the VCR main unit.
  • extra memory called stack memory 76 is required inside the remote unit, as shown in FIG. 12, which other than that is identical to FIG. 4.
  • Stack memory 76 can be implemented with a random access memory, which may in fact reside in the microcontroller itself, such as RAM 62.
  • the stack memory 76 is where new entry, insertion & deletion of timer preprogramming information is carried out. It is also where editing takes place.
  • the top memory locations of the stack for example the first 4 locations, correspond exactly to the available timer preprogramming memory in the VCR main unit. Whenever the top of the stack memory is changed, the new information will be sent over to the VCR main unit to update it.
  • FIG. 13 shows the sequence of events when the user enters a G-code program on the keypad of the remote controller.
  • the VCR main unit can only handle four (4) programs.
  • the stack memory capacity is 20 timer preprograms.
  • the microcontroller 60 when the user enters a G-code in step 230, the microcontroller 60 first decodes it into the CDTL information in step 234 and displays it on the display unit with the additional word "entered" also displayed. The microcontroller then enters the decoded program into the stack memory in step 236.
  • this is the first program entered, it is placed at the top location of the stack memory. If there are already programs in the stack memory, the newly entered program will first be provisionally placed at the bottom of the stack memory. The stack memory will then be sorted into the correct temporal order in step 240, so that the earliest program in time will appear in the top location and the last program in time will be at the bottom. Notice that the nature of the temporally sorted stack memory is such that if stack memory location n is altered, then all the locations below it will be altered.
  • the microcontroller 60 after doing the temporal ordering, checks in step 242 whether the first n entries have changed from before, where for the current example n equals 4. In this case, since a new program has been entered into location 3, what used to be in location
  • step 244 of FIG. 13 If the newly entered program, after temporal ordering, gets entered into location 5, then entries 1 through 4 have not changed from before and the microcontroller will not send any message to the VCR main unit and the microcontroller will just resume monitoring the clock 85 and the keyboard 88 as per step 246.
  • step 230 it is assumed that when the user enters the G-code in step 230, the remote controller is pointed at the VCR main unit.
  • the other steps of FIG. 13 happen so fast that the changes are sent in step 244 while the remote controller is still being pointed at the VCR main unit.
  • the deletion is first carried out in the stack memory. If the first 4 entries are affected, the microcontroller will send the revised information over to the VCR main unit. If the first 4 entries are not affected, then again the remote controller unit will not send anything. The deletion will only change the lower part of the stack flower meaning location 5 to 20). This new information will be sent over to the
  • VCR main unit at the appropriate time.
  • the VCR main unit will be carrying out its timer programming function, completing its timing preprogramming entries one by one.
  • the stack in the remote must send some new entries over to "replenish" the VCR main unit (if the stack has more than 4 entries).
  • the real time clock 85 in the remote controller unit is monitored by the microcontroller to determine when the programs in the main unit have been used up.
  • the microcontroller periodically checks the clock and the times for the programs at the top of the stack in step 250 (say the first 4 entries), which are identical to the VCR's main unit's menu. If on one of the periodic checks, it is determined that the recording of the main unit's menu is complete, then if there are more entries in the stack, which is tested in step 252, the display unit will be set to a blinking mode or display a blinking message in step 258 to alert the user to send more programs.
  • the blinking will remind him that the VCR main unit's program menu has been completed and it is time to replenish the VCR main unit with program entries stored in the remote.
  • the user simply picks up the remote and points it towards the VCR main unit and presses "ENTER”. This will "pop" the top of the stack memory in step 260, i.e., pop all the entries in the stack up by four locations.
  • the microcontroller will then send the new "top of the stack” (i.e., top 4 entries) over to the VCR main unit in step 262. This process will repeat until the whole stack has been emptied.
  • the instant programmer 300 of FIG. 15 has number keys 302, which are numbered 0 through 9, a CANCEL key 304, a REVIEW key
  • a lid normally covers other keys, which are used to setup the instant programmer 300. When lid 314 is lifted, the following keys are revealed:
  • VCR key 326 CABLE key 328
  • TEST key 330 Other features of instant programmer 300 shown on FIG. 15 are: liquid crystal display 350 and red warning light emitting diode
  • the front elevation view FIG. 16 of instant programmer 300 shows front infrared (IR) diode 340 mounted on the front side 338.
  • IR infrared
  • the front infrared (IR) diode 340 can transmit signals to control program recording.
  • An IR transparent cover 336 covers additional IR transmission diodes, which are explained below.
  • FIG. 18 shows a detail of the liquid crystal display 350. Certain text 354 is at various times visible on the display and there is an entry area 356. Time bars 352 are displayed at the bottom of the display and their function is described below.
  • a companion element to the instant programmer 300 is the mounting stand 360, shown in FIG. 17, which is designed to hold instant programmer 300 between left raised side 362 and right raised side 364.
  • the instant programmer 300 is slid between left raised side 362 and right raised side 364 until coming to a stop at front alignment flange 365, which is at the front of mounting stand 360 and connected across left raised side 362 and right raised side 364, as shown in FIG. 17A.
  • elements 362, 364 and 365 provide alignment for instant programmer 300 so that IR transparent cover 336 and the IR diodes 342, 344, 346 and 348, shown in FIG. 17 are properly aligned for transmission, when the instant programmer is used as shown in FIG. 20.
  • the mounting stand 360 has an alignment flange 366, which has the purpose of aligning the back edge of mounting stand 360, which is defined as the edge along which alignment flange 366 is located, along the front side of a cable box or VCR, or similar unit as shown in FIG. 20.
  • the mounting stand 360 aligns the instant programmer 300 so that the left IR diode 342, down IR diode 344, two back IR diodes 346 and right IR diode 348, as shown in FIG. 17, are in position to transmit signals to video cassette recorder 370 and cable box 372, as necessary.
  • the instant programmer 300 could be positioned to transmit to the television 374, either in the manner of FIG. 19 or by placing the mounting stand on top of the television in the manner of FIG. 20.
  • mounting stand 360 By using mounting stand 360, the user only need to align the mounting stand 360, and the instant programmer 300 once with the equipment to be programmed rather than having the user remember to keep the instant programmer 300 in the correct location to transmit via front infrared (IR) diode 340, as shown in FIG. 19.
  • IR infrared
  • the mounting stand 360 solves this problem by locating the instant programmer 300 with the equipment to be controlled- The left IR diode 342, down
  • IR diode 344 two back IR diodes 346 and right IR diode 348 are positioned to transmit to the left, downward, backward, and to the right.
  • the downward transmitter assumes that mounting stand 360 will be placed on top of the unit to be programmed.
  • the left and right transmission allows units to the left or right to be programmed.
  • the backward transmission back IR diodes 346 are provided so that signals can bounce off walls and other objects in the room.
  • PR diode 344 are implemented with 25 degree emitting angle diodes. Two back IR diodes are provided for greater energy in that direction and are implemented with 5 degree emitting angle diodes, which focus the energy and provide for greater reflection of the IR energy off of walls or objects in the room.
  • VCR's and cable boxes can be controlled by an infrared remote controller; however, different VCR's and cable boxes have different IR codes. Although there are literally hundreds of different models of VCR's and cable boxes, there are inevitably only tens of sets of IR codes. Each set may have a few tens of "words” that represent the different keys required, e.g., "power”, “record”, “channel up”, “channel down”, “stop”, "0", "1", “2” etc. For the purpose of controlling the VCR and cable box to do recording, only the following "words” are required: “0”, “1", “2", “3”, “4", "5", “6", “7”, “8”, “9", "power”, "record", "stop”.
  • the ER. codes for these words for all the sets are stored in the memory of the instant programmer 300, which is located in microcomputer 380 of FIGs. 21 and 22.
  • the user interactively inputs to the instant programmer 300 the type and model of his VCR and cable box.
  • the correct set of IR codes will be recalled from memory during the actual control process.
  • the infrared QR codes for that particular VCR will be recalled to control the VCR.
  • the IR codes "power”, “record”, “stop” will be recalled from the set that corresponds to the VCR whereas the IR codes for "0" through “9” will be recalled from the set that corresponds to the cable box.
  • the cable box controls the channel switching.
  • the channel switching signals "0" through “9” must be sent to the cable box instead of the VCR.
  • the user turns the VCR "OFF". Then the user presses the VCR key 326.
  • the display shows VCR
  • VCR did not turn “ON” or turned “ON” but did not change to Channel 09 the user presses
  • the instant programmer 300 sends the next possible VCR code, while the red warning light emitting diode 332 is flashing. If the VCR turns "ON" and changed to Channel 09 the user 0 presses SAVE key 316, otherwise the user presses ENTER key 318 again until the VCR code is found that works for the VCR. The display shows "END” if all possible VCR codes for that brand are tried. If so, the user presses VCR key 326 code 00 and then ENTER key 318 to try all possible codes, for all brands, one at a time.
  • the next setup step is to set the 5 clock on instant programmer 300.
  • the user presses the CLOCK key 320.
  • the display shows: "YR:”
  • the user presses the year (for example 90), then presses ENTER key 318.
  • The., .he display shows "MO:”
  • the user presses the month (for example 07 is July), and then presses ENTER key 318.
  • This is repeated for "DA:” date (for example 01 for the 1st), "Hr:” hour (for example 02 for 2 o'clock), "Mn:” minute (for example 05 for 5 minutes), and "AM/PM:” 1 for AM or 2 for PM.
  • the display will show "SAVE” for a few seconds and then the display will show the current time and date that have been entered. It is no longer necessary for the user to set the clock on his/her VCR.
  • the setup steps are as follows. First, the number corresponding to the model/brand of cable box (converter) to be controlled is looked up in a cable box model brand table, that lists cable box brands and corresponding two digit codes. The VCR is tuned to Channel 03 or 04 and turned “OFF”. Then the cable box is tuned to Channel 02 or 03, whichever is normal, and left “ON”. Then the CABLE key 328 is pressed. When the display shows: "CA B-:" the
  • the channels listed in their television guide or calendar are different from the channels on their television or cable.
  • the display will look like this: "Guide CH TV CH”. Then the user presses the channel printed in the television guide or calendar (for example, press 02 for channel 2), and then the user presses the channel number that the printed channel is received on through his/her local cable company. Then the user presses ENTER key 318. This is repeated for each channel listing that is on a different channel than the printed channel. When this procedure is finished the user presses SAVE key 316.
  • the television guide or calendar in the area will have a chart indicating the channel number that has been assigned to each Cable and broadcast channel, for example:
  • each of the set channels will scroll onto the display, one at a time.
  • the user can test to make sure that the location of the instant programmer 300 is a good one. First, the user makes sure that the VCR is turned “OFF” but plugged in and makes sure that the cable box (if there is one) is left “ON”. Then the user can press the TEST key 330. If there is only a VCR, then if the VCR turned “ON”, changed to channel 09 and started recording, and then turned “OFF", then the VCR controller is located in a good place.
  • the VCR should be left OFF and the cable box
  • the compressed code 212 is listed in the television guide, as shown in FIG. 8.
  • the television guide/calendar that would be used with this embodiment would have the same elements as shown on FIG. 8 except that element 188 of FIG. 8 is not required.
  • the compressed code 212 for the program selected by the user is entered into the instant programmer 300 by using the number keys 302 and then the user selects how often to record the program.
  • the instant programmer 300 will immediately decode the compressed code and display the date, channel and start time of the program entered by the user.
  • the length of the entered program is also displayed by time bars 352 that run across the bottom of the display. Each bar represents one hour (or less) of program.
  • the user just needs to leave the instant programmer 300 near the VCR and cable box so that commands can be transmitted, and at the right time, the instant programmer 300 will turn “ON” the VCR, change to the correct channel and record the program and then turn the VCR "OFF".
  • the user must just make sure to insert a blank tape.
  • the REVIEW key 306 allows the user to step through the entered programs. These are displayed in chronological order, by date and time. Each time the REVIEW key 306 is pressed, the next program is displayed, until "END" is displayed, when all the entered programs have been displayed. If the REVIEW key 306 is pressed again the display will return to the current date and time.
  • CANCEL key 304 will allow the user to start over.
  • Certain television programs such as live sports, may run over the scheduled time slot.
  • the user may press the ADD TIME key 324 to increase the recording length, even while the program is being recorded.
  • ADD TIME key 324 is pressed, 15 minutes is added to the recording length.
  • the amount of blank tape needed for the next 24 hours is also displayed by the time bars 352 that run across the bottom of the display. Each bar represents one hour (or less) of tape. The user should check this before leaving the
  • VCR unattended to ensure that there is enough blank tape.
  • the instant programmer 300 automatically checks through all the entries to ensure that there is no overlap in time between the program entries.
  • step 432 of FIG. 23 the user has the following options: 1) if the user wishes to leave the program previously entered and forget about the new one, the user does nothing and after a short time delay, the display will return to show the current time and date; 2) if the user wishes the program which starts first to be recorded to its end, and then to record the remainder of the second program, then the user presses ONCE key 310, DAILY (M-F) key 312, or WEEKLY key 308 again (whichever one the user pushed to enter the code). If the programs have the same starting time, then the program most recently entered will be recorded first. If on being notified of the "CLASH", the user decides the new program is more important than the previously entered program, then the user can cancel the previously entered program and then re-enter the new one.
  • the cable system airs some channels three (3) hours later/earlier than the times listed in the local television guide. This is due to time differences depending on whether the channel is received on a east or west satellite feed.
  • the procedure is as follows. First the user enters the code for the program and then presses SAVE key 316 (for +) and then presses ONCE key310, DAILY (M-F) key
  • ENTRY indicates an invalid entry during set up.
  • "Err: CODE” indicates that the program code number entered is not a valid number. If this is displayed the user should check the television guide and reenter the number.
  • "Err: DATE” indicates the user may have: tried to select a daily recording (Monday to Friday) for a Saturday or Sunday program; tried to select weekly or daily recording for a show more than 7 days ahead, because the instant programmer 300 only allows the weekly or daily recording option to be used for the current weeks' programs (+7 days); or tried to enter a program that has already ended.
  • "FULL” indicates that the stack storage of the programs to be recorded, which is implemented in random access memory (RAM) inside the instant programmer 300 has been filled. The user could then cancel one or more programs before entering new programs.
  • "EMPTY” indicates 0 there are no programs entered to be recorded. The number of programs to be recorded that can be stored in the instant programmer 300 varies depending on the density of RAM available and can vary from 10 to more.
  • FIG. 21 is a schematic of the circuitry needed to implement the instant programmer 300.
  • the circuity consists of microcomputer 380, oscillator 382, liquid crystal display 384,
  • the microcomputer 380 consists of a CPU, ROM, RAM, I/O ports, timers, counters and clock.
  • the ROM is used for program storage and the RAM is used among other purposes for stack storage of the programs to be recorded.
  • the liquid crystal display 384 is display 350 of FIGs. 15 and 18.
  • the key pad 386 implements all the previously discussed keys.
  • the five way IR transmitters 390 consists of front infrared (IR) diode 340, left IR diode 342, down IR diode 344, two back IR diodes 346 and right IR diode 348.
  • the microcomputer can be implemented with a NEC 5 ⁇ PD7530x part, which can interface directly with the display, the keypad, the light emitting diodes and the oscillator.
  • the 25 degree IR diodes can be implemented with NEC 313AC parts and the 5 degree IR diodes can be implement with Litton 2871C IR diodes.
  • FIG. 23 for program entry which process was described above, consists of the following steps: display current date, time and time bars step 402, which is the quiescent state of instant programmer 300; scan keyboard to determine if numeric decimal compressed code entered step 404; display
  • CANCEL key 304 step 428 user advances or retards start time by three hours by pressing
  • SAVE key 316 or ENTER key 318 step 410 user presses ONCE key 310, WEEKLY key 308 or DAILY key 312 key step 412; microcomputer decodes compressed code into CDTL step 414; test if conflict with stored programs step 416, if so, display "CLASH" message step 420, user presses ONCE key 310, WEEKLY key 308 or DAILY key 312 step 422, then accommodate conflicting entries step 432, as described above in the discussion of the
  • “CLASH” options, and entry not saved step 424 set display as date, channel, start time and duration (time bars) for ONCE, or DA, channel, start time and duration for DAILY, or day of week, channel, start time and duration for WEEKLY step 418; user presses ADD TIME key 324, which adds 15 minutes to record time step 426; user checks display step 430; enter program on stack in chronological order step 434 wherein the stack is a portion of the RAM of microcontroller 380; and calculate length of tape required and update time bars step 436.
  • FIG. 24 flowchart for review and cancellation which process was described above, consists of the following steps: display current date, time and time bars step 402;
  • FIG. 25 flowchart for record execution, which is the process of automatically recording a program and which was described above, consists of the following steps: compare start time of top program in stack memory with current time step 472; test if three minutes before start time of program step 474; start red warning LED 332 blinking for 30 seconds step 476; display channel, start time and blinking "START" message step 478, is correct start time reached step 480 and send power ON signal to VCR and display "REC" message step 482; test if a cable box is input to VCR step 484, send channel switching signals to VCR step
  • FIG. 26 is a flowchart of the method for encoding channel, date, time and length (CDTL) into decimal compressed code 510. This process is done "off-line” and can be implemented on a general purpose computer and is done to obtain the compressed codes 212 that are included in the program guide or calendar of FIG. 8.
  • the first step in the encoding method is the enter channel, date, time and length (CDTL) step 512 wherein for a particular program the channel, date, start time and length CDTL 514 of the program are entered.
  • the next step is the lookup assigned channel number step 516, which substitutes an assigned channel number 522 for each channel 518.
  • the assigned channel number is the same; however, for a cable channel such as HBO a channel number is assigned and is looked up in a cable assigned channel table 520, which would essentially be the same as the first two columns of the table of FIG. 28.
  • the lookup priority of channel, date and time/length in priority vector tables step 524 performs a lookup in priority vector channel (C) table 526, priority vector date (D) table 528 and priority vector time/length (TL) table 530 using the indices of channel, date and time/length, respectively, to produce the vector C P , D p , TL p 532.
  • TL time/length
  • the channel priority table is ordered so that the most frequently used channels have a low priority number.
  • An example of the data that is in the priority vector C table 526 follows.
  • the dates of a month all have an equal priority or equal usage, so the low number days in a month and the low number priorities would correspond in the priority vector D table 528 as in the following example.
  • the priority of the start times and length of the programs could be arranged in a matrix that would assign a priority to each combination of start times and program lengths so that more popular combinations of start time and length would have a low priority number and less popular combinations would have a high priority number.
  • a partial priority vector T/L table 530 might appear as follows.
  • channel, date, time and length (CDTL) 514 data is channel 5, February
  • the C p ,D p ,TL p data 532 for the above example would be 4 9 19.
  • the next step is the convert C-,, D p , TL,, to binary numbers and concatenate them into one binary number step 534, resulting in the data word 5 ...TL 2 TL 1 ...C 2 C 1 ...D 2 P. 536.
  • ...TL 2 TL 1 ...C 2 C 1 ...D 2 D 1 536 word to binary would yield the three binary numbers: ...0010011, ...0100, ...01001.
  • the number of binary bits to use in each conversion is determined by the number of combinations involved. This could vary depending on the implementation; however one preferred embodiment would use eight bits for C p , denoted as C 8 C- C 6 C 5 C 4 C 3 Cj Cj, which would provide for 256 channels, five bits for D p , which can be denoted as D 5 D 4 D 3 D 2 D-, would provide for 31 days in a month, and fourteen bits for TL,, denoted as TL 14 ...
  • bit hierarchy key 540 which can be stored in read only memory 64 to perform the reorder bits of binary number according to bit hierarchy key step 538.
  • a bit hierarchy key 540 can be any ordering of the
  • bit hierarchy key can be determined by the differential probabilities of the various bit combinations as previously discussed.
  • the details of deriving a bit hierarchy key 540 were described relative to bit hierarchy key 120 and the same method can be used for bit hierarchy key 540.
  • the bit hierarchy key might be:
  • the next step is the combine groups of bits and convert each group into decimal numbers and concatenate into one decimal number step 542.
  • the code may be 000000001010010000010001001, which could be grouped as 00000000101001000,0010001001. If these groups of binary bits are converted to decimal as 328,137 and concatenated into one decimal number, then the resulting decimal number is 328137.
  • the last encoding step is the permute decimal number step 546, which permutes the decimal number according to permutation function 544 that is dependent on the date 548 and in particular the month and year and provides a security feature for the codes.
  • the decimal compressed code Gg-.-GsG, 550 may, for example, be 238731. These encoded codes are then included in a program guide or calendar as in the compressed code indication 212 of FIG. 8.
  • FIG. 27 is a flowchart of the method for decoding a decimal compressed code into channel, date, time and length 560, which is step 414 of FIG. 23.
  • the first step is the extract day code step 566, which extracts the day code for the program in the decimal compressed code and passes the day code to step 568, which also receives the current day 574 from the clock 576, which is implemented by microcomputer 380 in FIGs. 21 and 22.
  • the clock 576 also sends the current month and year to the permutation function 570, which is dependent on the month and year.
  • step 568 performs the function: if day code is same or greater than current day from clock, then use permutation function for month/year on clock, otherwise use permutation function for next month after the month on the clock and use next year if the month on the clock is December.
  • the day for the program since there is provision for preprogramming recording for one month or 31 days ahead, if the day for the program is equal to or greater than the current day of the month, then it refers to a day in the present month; otherwise, if the day for the program is less than the current day of the month, it must refer to a program in the next month.
  • the extract day code step 566 which must be performed before the invert permutation of decimal compressed code step 580, is accomplished by a prior knowledge of how the permute decimal number step 546 of FIG. 26 is performed relative to the day code information.
  • the selected permutation method 578 is used in the invert permutation of decimal compressed code step 580.
  • the output of step 580 would be:
  • the next step is the convert groups of decimal numbers into groups of binary numbers and concatenate binary groups into one binary number step 584, which is the inverse of step 542 of FIG. 26 and for the above example would result in the binary code:
  • bit hierarchy key 588 is used in the reorder bits of binary number according to bit hierarchy key step 586, which inverts step 538 of FIG. 26 to obtain 000000000100110000010001001 for the above example, which is
  • the next step is to group bits to form three binary numbers TL b , C b , D b and convert to decimal numbers step 590 resulting in C p , D p , TL P 592, which for the example above would be: 4, 9, 19, and which are priority vectors for channel, day and time/length, which in turn are used to lookup channel, day, time and length 604 in priority vector channel (C) table 598, priority vector date (D) table 600, and priority vector time/length (TL) table 602, respectively.
  • C priority vector channel
  • D priority vector date
  • TL priority vector time/length
  • the lookup local channel number step 606 looks up the local channel 612 given the assigned channel number 608, in the assigned/local channel table 610, which is setup by the user via the CH key 322, as explained above.
  • FIG. 28 shows an exact correspondence between the assigned channel number 5 and the local channel number 5.
  • the last step is the append month and year to day to form date step 614-
  • the correct month and year are obtained from step 568 and are again dependent on whether the day code is equal to or greater than the day from the clock or less than the day from the clock. If the day code is equal to or greater than the day from the clock, the month and year as shown on the clock are used, otherwise the next month is used and the next year is used if the clock month is December.
  • the result is the channel, date, time and length (CDTL) 618. which for the above example would be channel 5, February 10. 1990.
  • FIG. 29 is a block diagram of a system including a television receiver having a G-code decoder.
  • the user would use the television remote controller 956 or controls on the television receiver to enter the code that signifies the program to be recorded.
  • the same television remote and controls on the television would also be used to perform normal television control functions, such as channel selection.
  • the television remote would send the G-code to the television with G-code decoder 950 via infrared transmitter 958.
  • An infrared receiver 960 is an infrared receiver 960
  • the 20 on the television receiver 950 would receive the transmission and send the code to the G-code decoder 954, which would decode the code into CDTL and use this information along with a clock, which would also be embedded in the television receiver 950, to send the proper commands to the VCR 964 and cable box 966 at the appropriate time so that the selected program will be recorded at the proper time.
  • the transmission from the television 950 would be
  • infrared transmitters 962 which can be placed at strategic points on the television cabinet, such as at the corners.
  • the transmission is then received by the VCR 964 via infrared receiver 968 and the cable box 966 via infrared receiver 969.
  • FIG. 30 is a schematic of a television receiver having a G-code decoder.
  • the television receiver with G-code decoder 950 would receive signals from the television remote 0 controller 956 via infrared receiver 960, which would send the signals to either command controller 974 or directly to G-code decoder 954.
  • the command controller 974 may be present in the television receiver to control other items in the television, including "on screen" functions such as displaying the channel number when the channel is changed.
  • the G-code 5 decoder 954 would decode a sent G-code and using the date and time from clock 976 would send the proper commands to the VCR 964 and cable box 966 via infrared transmitters 962.
  • the G-codes and other commands could also be sent to the command controller via manual control 975.
  • the G-code is decoded, then the G-code and the decoded CDTL information could be displayed "on screen" as shown in on screen display 978 on television
  • the "on screen” display is not necessary and any format is optional.
  • FIG. 31 is a schematic showing apparatus for a G-code decoder in a television receiver having G-code decoding.
  • the circuitry is very similar to that described in FIGs. 21 and 22; however, there are interfaces to an infrared receiver 960 and command controller 974 rather
  • the key elements are microcontroller 980 and oscillator
  • the interface to command controller 974 is one preferred embodiment; another embodiment could have direct interfaces between the manual control 975, the infrared receiver 960, the television display/monitor 952 and the G-code decoder 954 without going through the intermediary command controller 974.
  • the television circuitry would include the capability of storing or learning the infrared code protocols for the VCR and the cable box.
  • the warning light emitting diode 984 would be mounted on the cabinet of the television to warn that recording was about to begin in order to alert the user to have the VCR ready with tape to record.
  • the operation of the television receiver with G-code decoder 950 can be essentially identical to that described in o FIGs. 23, 24 and 25 for program entry, program review and program cancellation, and execution of recorder preprogramming using compressed codes, respectively. Every that was displayed on LCD 384 would instead be displayed on the television monitor 952. The only difference would be that "on screen” would only perform step 402 (display current date, time and time bars) when the user put television remote controller 956 into a mode for G-code 5 entry and transmission, program review or program cancellation.
  • step 402 display current date, time and time bars
  • FIG. 26 the method of decoding decimal compressed codes into program channel, date, time and length information of FIG. 27, and the method of assigning channel numbers to local channel numbers as illustrated in FIG. 28 would stay the same. 0
  • Another preferred embodiment of the invention is to embed the decoding means into various equipments associated with television, such as a video cassette recorder, cable box or satellite receiver.
  • the decoding means would only have to be present in one of the equipments, such as the cable box, which would then at the appropriate time distribute 5 the proper commands to the other equipments such as a VCR and a satellite receiver to record the desired program.
  • FIG. 32 is a block diagram of a system including a television having a G-code decoder
  • a satellite receiver 986 This system would work identically to the system shown in FIG. 29, except that a satellite receiver is included, which 0 could receive commands via infrared receiver 988 from infrared transmitters 962 mounted on television receiver with G-code decoder 950.
  • the commands received by the satellite receiver could include on/off commands and channel select commands.
  • VCR 964 could feed a television signal to VCR 964, which would record the program and/or relay it to television display/monitor 952.
  • FIG.33 is a block diagram of a system including a VCR having a G-code decoder 991 , a television 952, a cable box 966 and a satellite receiver 986.
  • the user would use the television remote controller 956 or controls on the VCR 991 to enter the code that signifies the program to be recorded.
  • the television remote would send the G-code to VCR 991 with G-code decoder 992 via infrared transmitter 958.
  • An infrared receiver 990 on the VCR 991 would receive the transmission and send the code to the G-code decoder 992, which would decode the code into CDTL and use this information along with a clock, which would also be embedded in the VCR 991, to send the proper commands to the cable box 966 and the satellite receiver 986 at the appropriate time so that the selected program will be recorded at the proper time.
  • the transmission from the VCR 991 would be via infrared transmitters 994, which can be placed at strategic points on the VCR.
  • the transmission is then received by the cable box 966 via infrared receiver 969 and the satellite receiver 986 via infrared receiver 988.
  • FIG. 36 is a perspective view showing a cable box 372 placed on top of a VCR 370 having an infrared transmitter 1008 behind the front panel 1009 which communicates to the cable box infrared receiver 1010 via reflection from surrounding reflecting surfaces such as walls.
  • FIG. 37 is a perspective view showing a cable box 372 placed on top of a VCR 370 having an infrared transmitter 1014 inside a infrared dome 1012 on the top of the VCR which communicates to the cable box infrared receiver 1010 via direct communication or reflection depending on placement of the infrared receiver 1010 relative to infrared dome 1012.
  • FIG. 38 is a perspective view of a VCR 370 having an infrared transmitter 1022 inside a mouse 1020 coupled via a cable 1018, which is plugged via plug 1017 into receptacle 1016 on the VCR.
  • the mouse 1020 is placed near the cable box infrared receiver 1010. This embodiment is most useful when the cable box is separated from the VCR by walls of a cabinet, for example, that would prevent either direct or reflective infrared transmission.
  • FIG. 39 is a perspective view of a VCR 370 having an infrared transmitter 1026 inside a stick on miniature mouse 1024 coupled via a cable 1018, which is plugged via plug 1017 into receptacle 1016 on the VCR.
  • the stick on miniature mouse 1024 is stuck onto the cable box very near the infrared receiver 1010.
  • This embodiment is also most useful when the cable box is separated from the VCR by walls of a cabinet, for example, that would prevent either direct or reflective infrared transmission.
  • the transmission methods and apparatus of FIGs. 36, 37, 38 and 39 could also be used with the system of FIG. 32 to transmit information from television receiver with G-code decoder 950 to VCR 964, cable box 966 and satellite receiver 986.
  • FIG. 34 is a block diagram of a system including a cable box having a G-code decoder
  • the television remote controller 956 or controls on the cable box 997 to enter the code that signifies the program to be recorded.
  • the television remote would send the G-code to cable box 997 with G-code decoder 998 via infrared transmitter 958.
  • An infrared receiver 996 on the cable box 997 would receive the transmission and send the code to the G-code decoder 998, which would decode the code into CDTL and use this information along with a clock, which would also be embedded in the cable box 997, to send the proper commands to the VCR 964 and the satellite receiver 986 at the appropriate time so that the selected program will be recorded at the proper time.
  • FIG. 997 would be via infrared transmitters 1000, which can be placed at strategic points on the cable box.
  • the transmission is then received by the VCR 964 via infrared receiver 968 and the satellite receiver 986 via infrared receiver 988.
  • the transmission methods and apparatus of FIGs. 36, 37, 38 and 39 could also be used with the system of FIG. 34 to transmit information from cable box 997 to VCR 964 and satellite receiver 986.
  • FIG. 35 is a block diagram of a system including a satellite receiver 1005 having a
  • G-code decoder a television 952, a VCR 964, and a cable box 966.
  • the user would use the television remote controller 956 or controls on the satellite receiver 1005 to enter the code that signifies the program to be recorded.
  • the television remote would send the G-code to satellite receiver 1005 with G-code decoder 1004 via infrared transmitter 958.
  • An infrared receiver 1002 on the satellite receiver 1005 would receive the transmission and send the code to the G-code decoder 1004, which would decode the code into CDTL and use this information along with a clock, which would also be embedded in the satellite receiver 1005, to send the proper commands to the VCR 964 and the cable box
  • the transmission from the satellite receiver 1005 would be via infrared transmitters 1006, which can be placed at strategic points on the satellite receiver.
  • the transmission is then received by the VCR 964 via infrared receiver 968 and the cable box 966 via infrared receiver 969.
  • the transmission methods and apparatus of FIGs. 36, 37, 38 and 39 could also be used with the system of FIG. 35 to transmit information from satellite receiver 1005 to VCR 964 and cable box 966.
  • the custom programmer 1100 of FIGS. 40 and 41 is similar to instant programmer 300 and has number keys 1102, which are numbered 0-9, a CANCEL key 1104, a REVIEW key 1106, a WEEKLY key 1108, a ONCE key 1110 and a DAILY (M-F) key 1112, which correspond directly to keys 302-312 of instant programmer 300, and which are used to program the custom programmer 1100.
  • a lid normally covers other keys, which are used to set up the instant custom programmer 1100.
  • Custom programmer 1100 includes a microphone opening 1140 through which at least one microphone inside the custom programmer 1100 can receive electronically coded audio signals that contain the information necessary for the custom programmer's initial set-up and commands to store this information into the custom programmer 1100.
  • a user may call a special phone number which could be a toll-free 800 number, a pay-per-minute 900 number, or a standard telephone number with standard toll charges applying.
  • the consumer can speak to an operator who orally inquires from the consumer the information regarding the consumer's VCR model and brand, zip code, model and brand of cable box and the newspaper or other publication which the consumer will use to obtain the compressed codes. This is all the information needed to perform the initial set-up for the custom programmer 1100. From the zip code information, the operator can determine to which cable system the consumer is connected and can combine this data with the knowledge of which publication the consumer will use to select the correct local channel mapping table for the consumer.
  • the operator will then direct the consumer to place the earpiece 1142 of the telephone receiver 1144 over the microphone opening 1140 of the custom programmer 1100 as 5 generally shown in FIG. 42.
  • the earpiece need not be placed directly against the custom programmer 1100, but may be held more than an inch away from the microphone opening with generally satisfactory results.
  • the operator will initiate the downloading of the initial set-up data and initial set-up programming commands transmitted over the telephone line 1146 using audio signals to the consumer's custom programmer 1100.
  • the display 1134 of the custom programmer 1100 will display the message "DONE". If the reception of the initial set-up data is not successful within a predetermined time limit, red 5 warning light emitting diode 1132 will blink to inform the consumer to adjust the position of the telephone earpiece before another down load of the information is attempted. After a waiting period allowing this adjustment, the initial set-up data and commands are re-transmitted over the telephone line. If after a predetermined number of attempts to download the initial set-up information are unsuccessful, the liquid crystal display 1134
  • a live operator could be provided by the local cable company and tiie
  • FIGS. 43 and 44 are schematics of the circuitry needed to implement alternative embodiments of the custom programmer 1100.
  • the circuit consists of microcomputer 1150, oscillator 1152, liquid crystal display 1154, keypad 1156, five way IR transmitters 1158 and red warning light emitting diode 1160. These component directly correspond to o microcomputer 380, oscillator 382, liquid crystal display 384, keypad 386, five way IR transmitters 388 and red warning light emitting diode 332, respectively of instant programmer 300 and perform in the same manner.
  • earpiece 1142 generates serial audio signals which are received by microphone 1162.
  • the audio signals received by microphone 1162 are passed through amplifier 1166, through a high pass filter 1166 with a cutoff at approximately 1 - 5 kHz, and through a second amplifier 1170 to a serial port of microcomputer 1150.
  • a dual microphone system may be employed to increase reliability, especially when the custom programmer 1100 is to be programmed in an environment with a high level of background noise that could interfere with the transmission of data through the single microphone acoustic means.
  • one microphone would 5 be placed near the telephone earpiece and the second microphone would be place some distance away from the earpiece in order to pick up background noise.
  • a audio signal cancellation circuit is then used to effectively "subtract" the background noise picked up by the second microphone from the audio data signals combined with the background noise that is picked up from the first microphone resulting in solely clean audio data signals.
  • FIGS. 45 Another preferred embodiment includes a separate initial set-up programmer 1200 as shown in FIGS. 45.
  • the initial set-up programmer 1200 serves the same basic function as the telephonic audio signal programming capability of custom programmer 1100, namely allowing the total set up of the instant programmer 300 or custom programmer 1100 with a
  • initial set-up programmers 1200 would be maintained by sellers of either the instant programmer 300 or the custom programmer 1100.
  • the initial set-up programmer could be programmed with the local channel tables for the cable systems and the television calendars that publish G-codes in the vicinity of the seller.
  • the seller can inquire where the customer lives and which television calendar the customer uses and use the initial set-up programmer 1200 to download the appropriate local channel table for that customer.
  • the initial set-up programmer 1200 can also set the clock, VCR brand and model, and cable box brand and model for the customer's instant programmer 300 or custom programmer 1100.
  • the initial set-up programmer 1200 includes a keyboard 1202, a display 1204, an enclosure 1206, and a lid 1208, with hinges 1209 at the top that allow the lid to open to reveal a depression 1210 for holding instant programmers 300 and custom programmers 1100 and two electrical contact pins 1212 as shown in FIG 46.
  • the initial set-up programmer 1200 includes a modular phone jack 1230 and a serial port 1232 as shown in FIG. 47 for transferring data to and from computers, either directly or over telephone lines.
  • FIG. 48 shows two access holes 1213 in the bottom of the instant programmer 300 that allow access to two contact points on the to the circuit board (not shown) inside the instant programmer 300.
  • FIG. 49 shows the initial set-up programmer 1200 with an instant programmer 300 fit into the depression 1210 with the two contact pins 1212 extending upwards through the access holes 1213 in the bottom of the instant programmer 300.
  • FIG. 50 shows the initial set-up programmer 1200 with a custom programmer 1100 fit into the depression 1210 with the two contact pins 1212 extending upwards through the access holes 1136 in the bottom of the instant programmer 300.
  • FIG. 51 is a schematic that shows circuitry included in the initial set-up programmer 1200.
  • the initial set-up programmer includes a microcontroller (NEC ⁇ PD7530x) 1214, a liquid crystal display 1216, a keypad 1218, static random access memory (static RAM) 1220, computer port 1222 and programming pins 1224.
  • Local channel tables can be transferred from a computer to the initial set-up programmer 1200 and stored in static RAM 1220.
  • FIG. 52 is a schematic showing the data transfer connection between a personal computer 1226 and initial set-up programmer 1200.
  • Local channel table data is output from personal computer 1226 through a serial RS-232 port with + 12 and -12 volt signals.
  • level shifter 1228 which are input into microcontroller 1214.
  • Level shifter 1228 can be either external or internal to initial set-up programmer 1200.
  • local channel table data can be transferred to the initial set-up programmer 1200 by audio signals carried over telephone lines. Further, local channel tables may be entered into the initial set-up programmer through keyboard 1202 in the same manner used to program this information into either instant programmers 300 or custom programmers 1100.
  • keyboard 1202 Included in keyboard 1202 are "SEND CLK”, "SEND CH”, "SEND CAB” and
  • SEND VCR which set the clock, download the local channel table, select the protocol for the cable box brand and model and select the protocol for the VCR brand and model, respectively when they are pressed. If the information is successfully transferred to the instant programmer 300 or custom programmer 1100 connected to the initial set-up o programmer 1200, display 1204 displays the message “Tr OK", otherwise the message "Tr
  • Test point 392 is connected to both an interrupt pin
  • the two pins are tied together with an open collector method so that both input and output can be accomplished with one pin.
  • the two contact pins 1212 connect to the same functional pins of the microcomputer 1150 of the custom programmer 1100. Data is transferred serially through these pins at a 4800 baud rate using TTL voltage levels.
  • the instant programmer 300 and custom programmer 1100 return a low pulse of a predetermined length to the initial set-up programmer 1200 when they have received all of transferred data.
  • the invention as shown in the preferred embodiments of the custom programmer 1100 and the initial set-up programmer 1200 can be readily included within televisions, video 5 cassette recorders, cable boxes, or satellite receivers. It would not be complicated to embed either the custom programmer 1100 or the initial set-up programmer 1200 in televisions, video cassette recorders, cable boxes, and satellite receivers by adding suitable cabling or other transmission means between various video devices being used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Details Of Television Systems (AREA)

Abstract

Les informations de préprogrammation codées énumérées dans un programme de télévision permettent de programmer une fonction de préprogrammation d'horloge d'un enregistreur de cassettes vidéo (44) au moyen d'un code comprimé et de la décoder au moyen d'un décodeur (38) intégré dans une commande à distance, un enregistreur de cassettes vidéo, un appareil de télévision ou autre dispositif vidéo, afin de convertir le code comprimé en informations de chaîne, de date, de temps ou de longueur. L'utilisateur peut se servir de la commande à distance (10) pour entrer le code signifiant le programme à enregistrer. Les informations de chaîne, de date, de temps et de longueur sont utilisées pour sélectionner des chaînes, ainsi que pour commencer ou arrêter l'enregistrement en temps voulu. Une table de correspondances locales de chaînes est mémorisée, de manière à utiliser l'information de chaîne provenant des codes comprimés pour se syntoniser sur la chaîne appropriée même si les numéros de chaînes sont éventuellement différents dans des localités différentes. On peut entrer les données de correspondances locales de chaînes au moyen d'un clavier (1202) relié à la commande à distance.
PCT/US1993/004097 1992-05-01 1993-04-30 Programmation d'enregistrement d'emissions de television au moyen de codes comprimes WO1993022872A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP93910956A EP0715797A1 (fr) 1992-05-01 1993-04-30 Programmation d'enregistrement d'emissions de television au moyen de codes comprimes
CA002134344A CA2134344C (fr) 1992-05-01 1993-04-30 Programmation de l'enregistrement d'emissions de television au moyen de codes comprimes
JP5519550A JPH07508848A (ja) 1992-05-01 1993-04-30 圧縮コードを用いたテレビ番組録画予約
PL93307338A PL172141B1 (pl) 1992-05-01 1993-04-30 Sposób i urzadzenie do programowanego zapisu sygnalu telewizyjnego PL

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US87768792A 1992-05-01 1992-05-01
US07/877,687 1992-05-01
US96507592A 1992-10-22 1992-10-22
US07/965,075 1992-10-22
CA002134344A CA2134344C (fr) 1992-05-01 1993-04-30 Programmation de l'enregistrement d'emissions de television au moyen de codes comprimes

Publications (1)

Publication Number Publication Date
WO1993022872A1 true WO1993022872A1 (fr) 1993-11-11

Family

ID=27169880

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/004097 WO1993022872A1 (fr) 1992-05-01 1993-04-30 Programmation d'enregistrement d'emissions de television au moyen de codes comprimes

Country Status (4)

Country Link
CN (1) CN1052605C (fr)
AU (1) AU4226993A (fr)
CA (1) CA2134344C (fr)
WO (1) WO1993022872A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1071977C (zh) * 1993-03-05 2001-09-26 杰姆斯达发展公司 使用压缩码作电视节目录像时间排定的装置与方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625080A (en) * 1983-05-03 1986-11-25 Scott Michael M Remote video recorder programming apparatus operating over telephone lines
US4641205A (en) * 1984-03-05 1987-02-03 Rca Corporation Television system scheduler with on-screen menu type programming prompting apparatus
US4706121A (en) * 1985-07-12 1987-11-10 Patrick Young TV schedule system and process
US4841132A (en) * 1986-07-21 1989-06-20 Matsushita Electric Industrial Co., Ltd. Program recording scheduling apparatus using an optical reader
US4856053A (en) * 1987-05-06 1989-08-08 Hashimoto Corporation Telephone terminal equipment having means for preventing malicious and nuisance transmission
US4899370A (en) * 1987-06-12 1990-02-06 Matsushita Electric Industrial Co., Ltd. Remote control apparatus for electronic equipment
US4908713A (en) * 1981-12-14 1990-03-13 Levine Michael R VCR Programmer
US5228077A (en) * 1987-12-02 1993-07-13 Universal Electronics Inc. Remotely upgradable universal remote control

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441205B1 (en) * 2000-05-19 2002-08-27 Council Of Scientific And Industrial Research Synthetic precursors to 4-(P-methoxyphenyl)-2-amino-butane

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908713A (en) * 1981-12-14 1990-03-13 Levine Michael R VCR Programmer
US4625080A (en) * 1983-05-03 1986-11-25 Scott Michael M Remote video recorder programming apparatus operating over telephone lines
US4641205A (en) * 1984-03-05 1987-02-03 Rca Corporation Television system scheduler with on-screen menu type programming prompting apparatus
US4706121A (en) * 1985-07-12 1987-11-10 Patrick Young TV schedule system and process
US4706121B1 (en) * 1985-07-12 1993-12-14 Insight Telecast, Inc. Tv schedule system and process
US4841132A (en) * 1986-07-21 1989-06-20 Matsushita Electric Industrial Co., Ltd. Program recording scheduling apparatus using an optical reader
US4856053A (en) * 1987-05-06 1989-08-08 Hashimoto Corporation Telephone terminal equipment having means for preventing malicious and nuisance transmission
US4899370A (en) * 1987-06-12 1990-02-06 Matsushita Electric Industrial Co., Ltd. Remote control apparatus for electronic equipment
US5228077A (en) * 1987-12-02 1993-07-13 Universal Electronics Inc. Remotely upgradable universal remote control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0715797A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1071977C (zh) * 1993-03-05 2001-09-26 杰姆斯达发展公司 使用压缩码作电视节目录像时间排定的装置与方法

Also Published As

Publication number Publication date
AU4226993A (en) 1993-11-29
CN1052605C (zh) 2000-05-17
CA2134344A1 (fr) 1993-11-11
CA2134344C (fr) 2004-07-27
CN1083999A (zh) 1994-03-16

Similar Documents

Publication Publication Date Title
US6430359B1 (en) Apparatus and method using compressed codes for television program record scheduling
US6430358B1 (en) Universal remote including apparatus using compressed codes for video recorder control
US5515173A (en) System and method for automatically recording television programs in television systems with tuners external to video recorders
EP0632949B1 (fr) Appareil et procede utilisant des codes comprimes pour la programmation d'enregistrement de programmes de television
US6760537B2 (en) Apparatus and method for television program scheduling
US6049652A (en) Apparatus and method using compressed codes for recorder preprogramming
US5475382A (en) Remote control mounting stand
US5553123A (en) Method for downloading setup data via telephone to an appliance controller
US6668133B2 (en) Apparatus and method using compressed codes for scheduling broadcast information recording
WO1994016523A1 (fr) Controleur universel a distance utilisant des codes comprimes
EP0619058B1 (fr) Appareil et methode mettant en oeuvre des codes comprimes pour la programmation d'un enregistrement d'informations diffusees
CA2134344C (fr) Programmation de l'enregistrement d'emissions de television au moyen de codes comprimes
EP0938232A2 (fr) Programmation d'enregistrement d'émissions de télévision au moyen de codes comprimés
CA2633629C (fr) Appareillage et methode assurant la diffusion d'information au moyen de codes comprimes
NZ243976A (en) Video recorder remote controller transmits in at least two directions

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH CZ DE DK ES FI GB HU JP KP KR LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): 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

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2134344

Country of ref document: CA

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1993910956

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1993910956

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1993910956

Country of ref document: EP