Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N7/00—Television systems
  • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04H—BROADCAST COMMUNICATION
  • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
  • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
  • H04H20/33—Arrangements for simultaneous broadcast of plural pieces of information by plural channels
  • H04H20/34—Arrangements for simultaneous broadcast of plural pieces of information by plural channels using an out-of-band subcarrier signal
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/41—Structure of client; Structure of client peripherals
  • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
  • H04N21/4143—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a Personal Computer [PC]
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
  • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
  • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
  • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet

Definitions

• TITLE METHOD AND APPARATUS TO ENCODE, AND DECODE ELECTRICAL SIGNALS, AUDIO SIGNALS, COMPUTER DATA SIGNALS, STATIC, AND DYNAMIC WEB DOCUMENTS FOR RECORDING, TRANSMISSION, RECEPTION, AND REGENERATION.
• This invention relates to the field of electronic signal encoding, and compression methods for signal recording, regeneration, transmission, and more particularly to methods and apparatus to encode, decode, compress, decompress, record, and transmit electrical signals, audio signals, computer data signals, and Hypertext Markup Language (HTML) static, and dynamic documents.
• HTML Hypertext Markup Language
• NTSC National Television System Committee
• PAL Phase Alternation Line
• SECAM SECAM formats HDTV and other standards are possible, but from this point on, only the U S standard will be used in discussion though other standards should be considered
• the NTSC signal comprising an analog amplitude modulated (AM) video signal carrier centered at 1 25 MHz, a color signal subcarrier centered at 3 58 MHz, and a frequency modulated (FM) audio signal carrier centered 4 5 MHz above the video signal carrier
• AM analog amplitude modulated
• FM frequency modulated
• the standard primary (FM) radio broadcast signal carrier is frequency modulated with a maximum frequency deviation of 150 KHz and a total bandwidth of 200 KHz
• the standard (FM) radio broadcast stereo signal comprising a left plus right (L+R) audio signal with a frequency deviation of (0 to 15 KHz), a left minus right (L-R) difference audio signal with a frequency deviation of (23 to 53 KHz), and a pilot subcarrier signal with a frequency of (19 KHz)
• FM radio systems primarily transmit music and audio information but currently do not have the ability to transmit NTSC signals or high speed computer data signals above 20,000 bits per second Radio systems currently only transmit one audio signal on the primary (FM) signal
• Another method to broadcast radio signals is to use amplitude modulation (AM) of a carrier signal (AM) radio signals are extremely susceptible to noise which interferes, corrupts and degrades the quality of a transmitted signal. (AM) radio systems primarily transmit music and audio information but currently do not have the ability to transmit NTSC signals.
• Radio stations that broadcast their primary signal using (FM) can also broadcast a secondary signal that rides along "piggyback" on the primary signal.
• the "piggyback" signal is an auxiliary service called the Subsidiary Communications Authorization (SCA) used to broadcast to a select group of receivers who subscribe to receive this special broadcast.
• SCA Subsidiary Communications Authorization
• An (FM) radio station that uses stereo broadcast of the primary signal can also broadcast an SCA signal comprising an audio frequency deviation of (59.5 to 74.5 KHz). If a radio station does not use stereo broadcast (monaural) of the primary signal then it may also simultaneously broadcast a second SCA signal comprising an audio frequency deviation of (20 to 53 KHz). Applicant believes that radio systems currently only transmit one signal type at a time on a SCA signal.
• Networking technology has developed an interconnected network of computer systems commonly known as the Internet, and the World Wide Web (WWW).
• the Internet uses the Transmission Control Protocol/Internet Protocol (TCP/IP) standard as the means of transferring data between computers connected to the Internet.
• TCP/IP Transmission Control Protocol/Internet Protocol
• Other standards are possible, but from this point on, only the TCP/IP standard is used in discussion though other standards should be considered.
• TCP/IP Transmission Control Protocol/Internet Protocol
• Other standards are possible, but from this point on, only the TCP/IP standard is used in discussion though other standards should be considered.
• TCP/IP Transmission Control Protocol/Internet Protocol
• Applicant believes currently, Internet transmitted NTSC signals are for display on non-interlaced computer displays, and not for
• a common format to encode and decode video, audio, and data signals for transmission, recording, and reception is to use computer algorithms for compression, and decompression to reduce the amount of data and bandwidth required to represent the signals. These algorithms are often used to transfer video, audio, and data over the Internet. Some of the most common algorithms in use are the Joint Photographic Expert Group (JPEG), Moving Pictures Expert Group (MPEG), MP3, MNP, International Telephone and Conduct Consultative Committee (CCITT), LZW (V.42 bis), and Microsoft (MS-Audio).
• HTML documents are also called Web documents, and are among the most commonly transferred computer data signals on the Internet These Web documents can be static, where no graphics or text information is changed when they are displayed Also, the Web documents can be dynamic, where displayed graphics, text, and computer operations can change because small computer programs (such as Java applets, and Active-X applets) are attached to either the documents, data, or to both Other formats are possible such as XTML, and SGML but from this point on, only the HTML format will be used in discussion though other formats should be considered HTML documents are more commonly displayed on non-interlaced scan computer monitors, they can also be displayed on interlaced scan television monitors with the use of special (WEB-TV) receivers
• WEB-TV special
• FM radio SCA broadcasting is used to transmit encoded signals to an SCA receiving apparatus
• the receiving apparatus uses a FM radio circuit, a computer, and a signal decompression modulator comprised of coupled Phase Locked Loop circuitry to decode transmitted encoded signals
• Applicant believes that this method, and apparatus provides a means to embed (“piggyback") multiple encoded signals onto various signal formats such as NTSC signals, audio, FCC radio, JPEG, HTML, and TCP/IP for immediate reception or later regeneration at a another time.
• Applicant believes that the method, and apparatus provides a means for FCC primary signals, and SCA radio signals to have multiple encoded NTSC signals, and HTML Web documents embedded that are unnoticed and unusable to a listener of the primary, and SCA signals, but can be used, and displayed by a person using the invention.
• Applicant believes that the method, and apparatus provides a means for recorded music signals to have multiple encoded NTSC signals, audio signals, and HTML Web documents embedded which are unnoticed while listening to the music signal, but can be regenerated and displayed by a person using the invention.
• Applicant believes that the transmission of audio signals through the Internet using standards such as MP3 is currently possible, but with the use of the described method, and apparatus, a means is provided to transmit multiple signals of encoded NTSC television signals, and HTML Web documents through the Internet that can be viewed with conventional television monitors, and computer monitors.
• Applicant believes that the method, and apparatus provides a means for multiple encoded signals of NTSC signals, HTML Web documents, computer data signals, and audio signals to be transmitted through the common plain ordinary telephone system (POTS), cable television systems, and cellular telephone systems using the invention.
• POTS plain ordinary telephone system
• Other aspects of the present invention will become evident from the detailed description of the invention.
• Fig. 1 is a general illustrated block diagram comprising the (encoding circuit ) and various signal encoding, and transmission aspects of the present invention.
• Fig. 2 is a general illustrated block diagram comprising the (decoding circuit) and various signal receptions, and decoding aspects of the present invention.
• the presently preferred embodiment of the present invention is a method, and apparatus to encode, decode, compress, decompress, record, and transmit video, audio, computer data signals, and Hypertext Markup Language (HTML) static, and dynamic documents
• HTML Hypertext Markup Language
• the preferred embodiment of the invention is shown in Fig 1 (encoding circuit), and in Fig 2 (decoding circuit)
• the encoding circuit of Fig 1 has an external signal input line (la) thereby providing signals of (0 to f ⁇ ) hertz to lines (lb) and to (lc)
• Input line (lb) is coupled to provide input signals to a selectively tuned bandpass filter 2.
• Input line (lc) is coupled to provide input signals to a selectively tuned bandpass filter 9.
• the filters used in the presently preferred embodiment are made ordinary commercially available components
• Input signals provided by line 3 are coupled to a signal translation device 4
• Digital signals on lines 5 provide the translated signal code (data sets) of the input signal from line 3
• Line 6 provides a control signal between the signal translation device 4 and the computer 8
• Line 6 signals are used to control the flow of signals on lines 5 to the computer 8
• Input signals are provided by line 10 to a coupled signal translation device 11
• the translation devices 4, and 11 may be any one of a plurality of commercially available devices capable of performing high speed signal translation
• Digital signals on lines 12 provide the translated signal code (data sets) of the input signal from line 10.
• Line 13 provides a control signal between the signal translation device 11 and the computer 8 The signals on line 13 are used to control the flow of signals on lines 12 to the computer 8
• the computer 8 is comprising a Texas Instruments TMS320C5416 or TMS320C6211 may be used but any one of a plurality of commercially available devices capable of performing ultra-high speed machine instructions may also be used.
• the computer 8 executes computer instructions to control, format, parallel input data sets, and provides a sequenced data frame signal output onto line 15
• the first buffer device 8a is within computer 8 into which formatted data sets are placed to format data frames.
• the buffer device 8a within computer 8 is random-access memory RAM, referred to as a "frame buffer" in which it temporarily stores data sets of information
• the sequenced data frame signal provided on line 15 by the computer 8 is coupled to the first input to the signal compression modulator circuit 17.
• the signal compression modulator circuit 17 comprising of dual Phase Locked Loops (PLL) circuits such as NE565- Phase Locked Loop coupled to the output of integral prescaler circuits such as cascaded dual SP8629 and a SP8660, or comprising direct frequency synthesis circuits such as the SP2002, although a plurality of commercially available devices capable of performing high speed signal synthesis, such as LMX2301 may be used
• the compressed signal bandwidth is used to modulate a selectable frequency with circuits comprising the NE565-PLL using Single Frequency Keying (SFK) or with circuits comprising Phase Shift Keying (PSK) which is output onto the coupled line 18, although a plurality of commercially available devices capable of performing SFK or PSK may be used.
• SFK Single Frequency Keying
• PSK Phase Shift Keying
• the computer 8 executes computer instructions to control, format, parallel input data sets, and provides a sequenced data frame signal output on line 16
• the second buffer device 8b is within computer 8 into which formatted data sets are placed to format data frames
• the second buffer device 8b included within computer 8 comprising of random- access memory RAM, referred to as a "frame buffer" in which it temporarily stores data sets of information
• the sequenced data frame signal provided onto line 16 by the computer 8 is coupled to the second input to the signal compression modulator circuit 17 within the signal compression modulator circuit 17 the compressed signal bandwidth is used to modulate a selectable frequency using Single Frequency Keying (SFK) or Phase Shift Keying (PSK) modulation and is output onto the coupled line 19
• SFK Single Frequency Keying
• PSK Phase Shift Keying
• the signal compression modulator circuit 17 just described has used (SFK) or (PSK) for modulation but a number of alternative modulation techniques can also be used and should not be construed as a limitation on the invention
• the encoded signals from line 18, and line 19, are coupled to an operational amplifier mixer circuit comprising a filtering signal concentrator 20
• the filtering signal concentrator 20 provides a means for signals from line 18, and line 19, and external signals from lines 21 to be combined, and to provide a signal with nonlinear distortion and noise products remove from the output on line 22
• the encoded signals on line 22 are provided to one of many transmission sources, such as an FM broadcast radio station 24 for primary or SCA signal modulation
• the tapped line 23 provides a signal source to a plurality of other devices, such as computers, and signal recording devices
• the decoding circuit of Fig. 2 comprising a signal receiving antenna input line 25 coupled to a FM radio receiver front-end tuner circuit 26 comprising the Waller 32SN2F1-30 although any of a plurality of commercially available tuner circuits capable of performing front-end FM signal processing may be used
• the front-end tuner 26 provides a 10 7 MHz FM Intermediate Frequency (FM-IF) signal onto line 27
• Line 27 couples the signal from the FM front-end tuner 26 to the 10 7 MHz coupling capacitor filter circuit 28
• Line 29 couples the signal from the 10 7 MHz capacitor filter circuit 28 to a FM-IF circuit 30 comprising the National Semiconductor LM3089 although any of a plurality of commercially available devices capable of performing FM-IF signal processing may be used
• the FM-IF circuit 30 is coupled to line 29 and provides a FM demodulated signal output onto a coupled line 31
• the FM demodulated signal on line 31 contains the composite FM signals from a radio broadcast signal
• Line 35 couples the encoded signal input from the SCA decoder circuit 34 to a signal source switch 36.
• Line 38 couples the signal source switch 36 to the frequency selectable bandpass filter 40
• Line 37 provides a external signal input to signal source switch 36
• Line 41 provides a signal to the first input comprising of a signal decompression modulator circuit 43 to which it is coupled
• the sequenced encoded data frame signal provided on line 41 is coupled to bandpass filter 40
• Line 41 is coupled to the first input comprising the signal decompression modulator circuit 43.
• the signal decompression modulator circuit 43 comprising of dual Phase Locked Loops (PLL) circuits such as the NE565-PLL circuit, and NE564-PLL circuit coupled with integral prescaler circuits within its feedback loop such as dual SP8629 and a SP8660, or comprising direct frequency synthesis circuits such as the SP2002, although a plurality of commercially available devices capable of performing high speed signal synthesis, such as LMX2301 may be used
• the modulated signal provided from line 41 is demodulated using Single Frequency Keying (SFK) comprising circuits, such as the NE565-PLL or with circuits comprising (PSK) into the original sequenced encoded data frame signal.
• SFK Single Frequency Keying
• Line 44 is coupled to a computer 49 comprising a Texas Instruments TMS320C5416 or TMS320C6211 but any one of a plurality of commercially available devices capable of performing ultra-high speed machine instructions may also be used.
• the computer 49 executes computer instructions to control, format, parallel output data sets, and input sequenced encoded data frame signals from line 44 into a first buffer device 49a.
• Comprising the computer 49 is a sequencer circuit, and software code to provide the means to identify the first bit of a data frame signal that has been transmitted, after which identifying the subsequent data frame code is automatically completed.
• the first buffer device 49a is comprised within computer 49 and into which formatted data frames are placed to format data sets.
• the buffer device 49a within computer 49 comprising of random-access memory RAM, referred to as a "frame buffer" in which it temporarily stores data sets of information.
• the computer 49 provides a means to parallel output data set signals onto lines 50.
• the parallel data set signals provided on lines 50 by the computer 49 are coupled to the input of the signal translation device 51.
• the signal translation device 51 comprising the Texas Instruments TLC5602 converter is connected to digital signals on lines 50. A plurality of other commercially available devices capable of performing high speed signal translation may also be used.
• Line 52 provides a control signal between the signal translation device 51 and the computer 49. Line 52 signals are used to control the flow of signals on lines 50 to the signal translation device 51.
• the output of the translation device 51 is provided onto the coupled line 53.
• the NTSC video signal on line 53 is coupled to a television video modulator circuit input 55a.
• the television video modulator circuit 55 comprising of a TV video modulator such as the National Semiconductor LM2889.
• Line 57 provides the means to couple the NTSC video signal directly to the video input line of a television receiver 58a.
• Line 39 is coupled to a frequency selectable bandpass filter 45 and to output the selected frequency bandwidth onto line 46 to which it is coupled.
• Line 46 provides a signal to the second input of a signal decompression modulator circuit 43 to which it is coupled.
• the sequenced encoded data frame signal provided on line 46 by the bandpass filter 45 is coupled to the second input to the signal decompression modulator circuit 43 Within the signal decompression modulator circuit 43 the bandwidth of the demodulated data frame signal is output onto line 48
• Line 48 is coupled to the computer 49
• the computer 49 executes computer instructions to control, format, parallel output data sets, and input sequenced encoded data frame signals from line 48 into a second buffer device 49b
• the second buffer device 49b comprised within computer 49 and into which formatted data frames are placed to format data sets
• the buffer device 49b within computer 49 comprising of random-access memory RAM, referred to as a "frame buffer" in which it temporarily stores data sets of information
• the computer 49 is coupled to lines 59
• Line 60 provides a control signal between the signal translation device 61 and the computer 49
• Line 60 signals are used to control the flow of signals on lines 59 to the signal translation device 61
• the output of the translation device 61 is provided onto the coupled line 62
• Line 62 is coupled to the television video modulator circuit input 55b
• Line 64 provides the means to couple to the audio input line of a television receiver 58b Line 54
• line 63 provide a tapped signal source to supply signals to external devices such as computers, and signal recording equipment
• FIG. 3 shows how one computer can combine the signals from multiple sources, and encode the separate signals with hardware connection and software within the computer providing one output data frame signal that contains the information from the multiple encoded signals
• the encoding of the multiple signals from the separate translation devices will allow the computer to decode the signals into there original form after reception
• the previously discussed component details of the encoding circuit also apply to Fig. 3
• the television video modulator circuit 55 provides a composite NTSC signal output onto the coupled line 56 that is also coupled to the antenna of television receiver 58c
• the composite NTSC signal from line 56 contains both the video signal, and audio signal
• the preferred embodiment of the invention is shown in Fig 1 (encoding circuit), and in Fig 2 (decoding circuit)
• the encoding circuit of Fig 1 has a signal input line (la) thereby providing a maximum input signal bandwidth of (0 to f max ) hertz to lines (lb) and to (lc)
• Input line (lb) is coupled to provide input signals to a selectively tuned bandpass filter 2.
• Input line (lc) is coupled to provide input signals to a selectively tuned bandpass filter 9.
• the bandpass filter 9 is set for a specific frequency bandwidth to bandpass
• the filters used in the presently preferred embodiment are made ordinary commercially available components
• Input signals provided by line 3 are coupled to a signal translation device 4 comprising a Texas Instruments TLC5510 converter to receive input signals and perform signal translation into coded signals of 256 eight-bit digitally coded signals of (00 to FF hexadecimal)
• the Nyquist Sampling Theorem says that if an analog signal is sampled at a minimum of [ 2 times (f max ) ] hertz per second, the samples at this rate can be used to perfectly regenerate the original signals (f) hertz over the bandwidth (zero to f ma ) hertz
• Digital signals on lines 5 provide the translated signal code (referred to as data sets) of the input signal (f max ) from line 3
• Line 6 provides a control signal between the signal translation device 4 and the computer 8
• Line 6 signals are used to control the flow of signals on lines 5 to the computer 8
• Input signals (f max ) are provided by line 10 to a coupled signal translation device 11 comprising a Texas Instruments TLC5510 converter to receive signals and perform signal translation into coded signals of 256 eight-bit digitally coded signals of (00 to FF hexadecimal)
• the translation device 4 and device 11 provide a minimum translation rate output signal of [ 2 times f max ], and may be one of a plurality of commercially available devices capable of performing high speed signal translation
• Digital signals on lines 12 provide the translated signal code (data sets) of the input signal from line 10
• Line 13 provides a control signal between the signal translation device 11 and the computer 8
• the signals on line 13 are used to control the flow of signals on lines 12 to the computer 8
• the computer 8 comprising a Texas Instruments TMS320C5416 or TMS320C6211 may be used but any one of a plurality of commercially available devices capable of performing ultra-high speed machine instructions may also be used
• the computer 8 executes computer instructions to control, format, parallel input data sets, and provides a sequenced data frame signal output onto line 15
• the computer 8 provides a continuously sequenced data frame signal output onto line 15, and line 16 with a maximum bandwidth of ( D ), where
• the first buffer device 8a is comprised within computer 8 into which formatted data sets are placed to format data frames
• Data frame formatting by computer 8 is used to provide a method to synchronize the data sets during signal transmission so that the exact same data sets are recreated from the reception signal.
• the buffer device 8a within computer 8 is random-access memory RAM, is referred to as a "frame buffer" in which it temporarily stores data sets of information for data frame signal generation.
• Parkinson's Law corollary says the ratio at which information can be transmitted depends of the bandwidth of the transmission media.
• an FM radio SCA signal has an audio signal deviation bandwidth of approximately ( 59.5 to 74.5 KHz ), this results in a usable bandwidth of approximately ( 0 to 7.5 KHz ).
• (C) is the channel capacity in bits per second
• (W) is the bandwidth of the channel in hertz
• (P) is the power in watts of the signal through the channel
• (N) is the power in watts of the noise out of the channel.
• the sequenced data frame signal provided on line 15 by the computer 8 is coupled to the first input to the signal compression modulator circuit 17.
• the signal compression modulator circuit 17 comprising of dual Phase Locked Loops (PLL) circuits such as NE565- Phase Locked Loop coupled to the output of integral prescaler circuits such as cascaded dual SP8629 and a SP8660, or comprising Direct Frequency Synthesis circuits such as the SP2002, although a plurality of commercially available devices capable of performing high speed signal synthesis, such as LMX2301 may be used.
• PLL Phase Locked Loops
• NE565- Phase Locked Loop coupled to the output of integral prescaler circuits such as cascaded dual SP8629 and a SP8660, or comprising Direct Frequency Synthesis circuits such as the SP2002, although a plurality of commercially available devices capable of performing high speed signal synthesis, such as LMX2301 may be used.
• Within the signal compression modulator circuit 17 the original bandwidth of sequenced signals from line
• the compressed signal bandwidth is used to modulate a selected frequency using Single Frequency Keying (SFK) or Phase Shift Keying (PSK) which is output onto the coupled line 18.
• Frequency Division Multiplexing is bandwidth division of the transmission medium into logical channels over which multiple signals of information can be simultaneously transmitted
• FDM Frequency Division Multiplexing
• Within the signal compression modulator circuit 17 (FDM) is used to subdivide the available transmission bandwidth of (0 to T maI ) hertz into multiple signal channels (N). and shall create multiple narrow frequency bandwidth's of [ (T max )/ N ] available for use with (SFK) or (PSK) modulation
• the computer 8 executes computer instructions to control, format, parallel input data sets, and provides a sequenced data frame signal output on line 16
• the second buffer device 8b is comprised within computer 8 into which formatted data sets are placed to format data frames
• the second buffer device 8b included within computer 8 comprising of random-access memory RAM, is referred to as a "frame buffer" m which it temporarily stores data sets of information
• the sequenced data frame signal provided onto line 16 by the computer 8 is coupled to the second input to the signal compression modulator circuit 17
• the original frequency bandwidth of sequenced signals from line 16 is compressed by the prescalers modulus factor into one of several narrow frequency bandwidth ranges
• the compressed signal bandwidth is used to modulate a selected frequency using Single Frequency Keying (SFK) or Phase Shift Keying (PSK) modulation and is output onto the coupled line 19
• SFK Single Frequency Keying
• PSK Phase Shift Keying
• the signal compression modulator circuit 17 just described has used (SFK) or (PSK) for modulation but a number of alternative modulation techniques can also be used and should not be construed as a limitation on the invention
• the encoded signals from line 18, and line 19, are coupled to an operational amplifier mixer circuit comprising a filtering signal concentrator 20
• the filtering signal concentrator 20 provides a means for signals from line 18, and line 19, and external encoded signals from line 21 to be combined, and to provide a signal with nonlinear distortion and noise products removed from the output on line 22
• the encoded signals on line 22 are provided to one of many transmission sources, such as an FM broadcast radio station 24 for primary or SCA signal modulation
• the tapped line 23 provides a signal source to a plurality of other devices, such as computers, and signal recording devices The embodiment shown in Fig.
• FIG. 3 shows how one computer can combine the signals from multiple sources, and encode the separate signals with hardware connection and software within the computer providing one output data frame signal that contains the information from the multiple encoded signals.
• the encoding of the multiple signals from the separate translation devices will allow the computer to decode the signals into there original form after reception.
• the previously discussed component details of the encoding circuit also apply to Fig. 3.
• the decoding circuit of Fig. 2 comprising a signal receiving antenna input line 25 coupled to a FM radio receiver front-end tuner circuit 26 comprising the Waller 32SN2F1-30 although any of a plurality of commercially available tuner circuits capable of performing front-end FM signal processing may be used.
• the front-end tuner 26 receives and processes the FM broadcast signal that is carrier modulated on designated FCC channel frequencies of (88 to 108 MHz).
• the front-end tuner 26 provides a 10.7 MHz FM Intermediate Frequency (FM-EF) signal onto line 27.
• Line 27 couples the signal from the FM front-end tuner 26 to the 10.7 MHz coupling capacitor circuit 28.
• Line 29 couples the signal from the 10.7 MHz capacitor circuit 28 to a FM-IF circuit 30 comprising the National Semiconductor LM3089 although any of a plurality of commercially available devices capable of performing FM-IF signal processing may be used.
• the FM-IF circuit 30 processes the signal from line 29 and provides a FM demodulated signal output onto a coupled line 31.
• the FM demodulated signal on line 31 contains the composite FM signals from a radio broadcast signal that was selected by signal tuning the FM radio receiver front-end tuner circuit 26.
• the composite FM signal on line 31 contains the FM radio stereo audio signals (L+R), and (L-R), and the frequency modulated SCA audio signals.
• the filter circuit 32 is capable of being tuned to either the FM radio primary audio signals or the SCA audio signals.
• the signals on line 31 are coupled to a filter circuit 32 to provide only FM composite SCA signals to the output on line 33.
• the FM composite SCA signals on line 33 are coupled to an SCA decoder circuit 34.
• the SCA decoder circuit 34 is comprising of a circuit of a PLL such as a 565-PLL and decodes the FM composite SCA signals from line 33.
• the SCA decoder circuit 34 can be tuned to select either the FM primary signal or the SCA signal audio deviation frequencies
• the SCA decoder circuit 34 is frequency tuned to provide an SCA audio signal output onto the line 35 to which it is coupled
• the SCA signal on line 35 contains the encoded data frame signals that must be further decoded with additional circuits
• Line 35 provides an encoded signal input from the SCA decoder circuit 34 to a signal source switch 36 which provides a means to select the source of the input signal that will be provided onto line 38
• Line 37 provides a external encoded signal input which can be from a plurality other sources comprising CD-rom, compact disk players, recorded music, and video with encoded signals embedded, and computer data signals
• the external input signals on line 37 have been described for exemplification and should not be construed as a limitation of scope on the invention
• Line 38 is coupled to a frequency selectable bandpass filter 40 and provides the signal to bandpass filter 40 to filter the undesired noise, aliasing signals, and to output the selected frequency bandwidth onto line 41 to which it is coupled
• Line 41 provides a signal to the first input comprising of a signal decompression modulator circuit 43 to which it is coupled
• the sequenced encoded data frame signal provided on line 41 by the bandpass filter 40 is coupled to the first input comprising the signal decompression modulator circuit 43.
• the signal decompression modulator circuit 43 comprising of dual Phase Locked Loops (PLL) circuits such as the NE565-PLL circuit, and NE564-PLL circuit coupled with integral prescaler circuits within its feedback loop such as dual SP8629 and a SP8660 thereby providing frequency multiplication, or comprising Direct Frequency Synthesis circuits such as the SP2002, although a plurality of commercially available devices capable of performing high speed signal synthesis, such as LMX2301 may be used.
• the modulated signal provided from line 41 is demodulated with circuits comprising the NE565-PLL circuit using Single Frequency Keying (SFK) or circuits using Phase Shift Keying (PSK) into the original sequenced encoded data frame signal
• SFK Single Frequency Keying
• PSK Phase Shift Keying
• Line 44 is coupled to a computer 49 comprising a Texas Instruments TMS320C5416 or TMS320C6211 but any one of a plurality of commercially available devices capable of performing ultra-high speed machine instructions may also be used
• the computer 49 executes computer instructions to control, format, parallel output data sets, and input sequenced encoded data frame signals from line 44 into a first buffer device 49a
• the first buffer device 49a comprised within computer 49 and into which formatted data frames are placed to format data sets
• the buffer device 49a within computer 49 comprising of random-access memory RAM, is referred to as a "frame buffer" in which it temporarily stores data sets of information
• the computer 49 provides a means to parallel output data set signals onto lines 50
• the parallel data set signals provided on lines 50 by the computer 49 are coupled to the input of the signal translation device 51
• the signal translation device 51 comprising the Texas Instruments TLC5602 converter is used to receive digitally coded signals (00 to FF hexadecimal), and to perform signal translation of digital signals on lines 50 into a NTSC video signal output
• Line 52 provides a control signal between the signal translation device 51 and the computer 49
• Line 52 signals are used to control the flow of signals on lines 50 to the signal translation device 51
• the output of the translation device 51 is provided onto the coupled line 53
• the NTSC video signal on line 53 is coupled to a television video modulator circuit input 55a
• the television video modulator circuit 55 comprising of a TV video modulator such as the National Semiconductor LM2889 Line 57 provides the means to couple the NTSC video signal directly to the video input line of a television receiver 58a
• Line 39 is coupled to a frequency selectable bandpass filter 45 and provides the signal to bandpass filter 45 to filter the undesired noise, aliasing signals, and to output the selected frequency bandwidth onto line 46 to
• the sequenced encoded data frame signal provided on line 46 by the bandpass filter 45 is coupled to the second input to the signal decompression modulator circuit 43.
• the modulated signal provided from line 46 is demodulated using Single Frequency Keying (SFK) or (PSK) into the original sequenced encoded data frame signal.
• SFK Single Frequency Keying
• PSK PSK
• Line 48 is coupled to the computer 49.
• the computer 49 executes computer instructions to control, format, parallel output data sets, and input sequenced encoded data frame signals from line 48 into a second buffer device 49b.
• the second buffer device 49b comprised within computer 49 and into which formatted data frames are placed to format data sets.
• the buffer device 49b within computer 49 comprising of random-access memory RAM, referred to as a "frame buffer” in which it temporarily stores data sets of information.
• the computer 49 provides a means to parallel output data set signals onto lines 59.
• the parallel data set signals provided on lines 59 by the computer 49 are coupled to the input of the signal translation device 61.
• the signal translation device 61 comprising the Texas Instruments TLC5602 converter is used to receive digitally coded signals (00 to FF hexadecimal), and to perform signal translation of digital signals on lines 59 into the NTSC audio signal output.
• Line 60 provides a control signal between the signal translation device 61 and the computer 49.
• Line 60 signals are used to control the flow of signals on lines 59 to the signal translation device 61.
• the output of the translation device 61 is provided onto the coupled line 62.
• the NTSC audio signal on line 62 is coupled to the television video modulator circuit input 55b.
• Line 64 provides the means to couple the NTSC audio signal directly to the audio input line of a television receiver 58b.
• Line 54, and line 63 provide a tapped signal source to supply signals to external devices such as computers, and recording equipment.
• the television video modulator circuit 55 provides a composite NTSC signal output onto the coupled line 56 that is also coupled to the antenna of television receiver 58c.
• the composite NTSC signal from line 56 contains both the video signal, and audio signal, and is frequency modulated onto a NTSC channel frequency. It will be known to a reader skilled in the art that the portions of the television video modulator circuit 55 just described are well known and that the items 55, and 58 are commonly practiced.
• the television video modulator circuit 55 description illustrates in detail one method of how decoded signals can be transmitted, and received by television signal receivers.
• Line lb) is not coupled to line lc), and input signals are directly coupled to the corresponding input lines.
• TDM Time Division Multiplexing
• STDM Statistical Time Division Multiplexing
• FSK Frequency Shift Keying
• QPSK Quadrature Phase Shift Modulation
• PCM Pulse Coded Modulation
• FM Frequency Modulation
• PM Phase Modulation
• PM Pulse Width Modulation
• PPM Pulse Position Modulation
• CDM Code Division Multiplexing
• AM Amplitude Modulation
• QAM Quadrature Amplitude Modulation
• Emitter-coupled logic (ECL) Device for high speed signal translation
• the reader can see the method, and apparatus of the invention provides a new and highly useful means to encode, decode, compress, decompress, record, and transmit electrical signals, audio signals, computer data signals, and Hypertext Markup Language (HTML) static, and dynamic documents
• HTML Hypertext Markup Language
• the invention provides a means to encode, decode, and embed multiple signals from a variety of signal formats onto prior art signals, whereby additional functionality is created
• the invention provides a method, and apparatus to transmit and receive information and signals through means that were not previously possible

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• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Multimedia (AREA)
• General Engineering & Computer Science (AREA)
• Compression Or Coding Systems Of Tv Signals (AREA)
• Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
• Circuits Of Receivers In General (AREA)

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• 2000
  • 2000-06-30 JP JP2001508099A patent/JP2003503945A/ja active Pending
  • 2000-06-30 BR BR0012073-1A patent/BR0012073A/pt not_active IP Right Cessation
  • 2000-06-30 AU AU62030/00A patent/AU751765B2/en not_active Ceased
  • 2000-06-30 PL PL00352833A patent/PL352833A1/xx unknown
  • 2000-06-30 CN CN00809897A patent/CN1359592A/zh active Pending
  • 2000-06-30 OA OA1200100350A patent/OA11982A/en unknown
  • 2000-06-30 MX MXPA01012825A patent/MXPA01012825A/es unknown
  • 2000-06-30 WO PCT/US2000/018095 patent/WO2001003355A2/en not_active Application Discontinuation
  • 2000-06-30 EP EP00948552A patent/EP1192806A2/en not_active Withdrawn
  • 2000-06-30 KR KR1020017016794A patent/KR20020032443A/ko not_active Application Discontinuation
  • 2000-06-30 CA CA002376626A patent/CA2376626A1/en not_active Abandoned

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