KR100463506B1 - Broadcast Schedule Search and TV Schedule Recording System Using Digital Cellular Telephone System - Google Patents

Abstract

The present invention provides a broadcast schedule retrieval / TV reservation recording system using a digital cellular telephone system that can not only retrieve a broadcast schedule using a digital cellular telephone system but also reserve and record broadcast contents of an IRD.

The present invention is installed in a system control and exchange of a conventional digital broadcast receiver and a digital cellular telephone system, the broadcast schedule information extraction and format conversion unit for extracting the broadcast schedule information from the digital broadcast receiver and converting it into a telephone format, and the system; A broadcast schedule / voice multiplexer for simultaneously transmitting broadcast schedule information, broadcast schedule information, and voice information to subscribers installed in the control and switchboard, and separating the bit stream received from the telephone into broadcast schedule information and voice information. A reservation recording signal generator for outputting the broadcast schedule information processing unit, a reservation recording signal installed in a telephone to generate a reservation recording signal for activating an IRD and a storage medium in a reserved recording mode according to a user input, and a reservation recording signal transmitted from a digital cellular telephone. To detect and route to public switched telephone network. And a reservation recording processing unit configured to perform a reservation recording by operating an IRD and a storage medium according to the reservation recording signal.

Description

Broadcast Schedule Search and TV Schedule Recording System Using Digital Cellular Telephone System

The present invention relates to a TV schedule search / TV reservation recording system using a digital cellular telephone system. More particularly, the present invention relates to a TV schedule retrieval system using a digital cellular telephone system to transmit and retrieve broadcast schedule information extracted from an IRD to a telephone. The present invention relates to a TV schedule retrieval / TV reservation recording system using a digital cellular telephone system for performing a reservation recording of an IRD using a telephone.

A typical typical digital cellular telephone system is a system controller and switch (or MTSO) 10 and a number of cell-sites 11 and 12, as schematically illustrated in FIG. It consists of a mobile phone or a cellular phone (Mobile Unit) (13, 14).

In FIG. 1, the system control and exchange 10 provides an interface for controlling the base stations 11, 12, and routing between the Public Switched Telephone Network (PSTN) and the base stations 11, 12. And routing between the base station 11 and the base station 12.

The system control and exchange 10 is connected to the base stations 11 and 12 via communication links such as telephone lines, optical fiber links, and microwave communication links.

Reference numerals 50a-50b, 51a-51b, 52a-52b, and 53a-53b show possible communication links between the base stations 11, 12 and the cellular telephones 13, 14.

An example of a communication system between the cellular telephones 13 and 14 and the base stations 11 and 12 is a spread spectrum communication system disclosed in US Pat. No. 5,416,797.

2 shows a schematic configuration of a system control and exchange (MTSO) 10. The MTSO 10 generally includes a system control processor 15, a digital switch 16, 17, a digital vocoder 18, and a diversity combiner 19 It is configured to include).

The digital vocoder 18 and the diversity combiner 19 can connect the desired number to the digital exchangers 16 and 17 as needed.

In general, when the diversity mode is activated, a call to one cellular telephone is processed at two base stations 11 and 12 so that the MTSO 10 receives the same information at both base stations 11 and 12.

Accordingly, the diversity combiner 19 combines the information into a high quality signal and outputs the signal to the digital vocoder 18.

The digital vocoder 18 converts the input voice signal into a standard format such as, for example, a 64 kbps PCM telephone format, and transmits it to the digital exchanger 16. The digital voice coder 18 encodes the input voice signal and beats the bit to the digital switch 17. Output the heat.

The digital exchange 16 is responsible for routing between the cellular network and the PSTN network under the control of the system control processor 15.

The system control processor 15 controls the digital exchangers 16 and 17 to route data input and output from the MTSO 10, and appropriately allocates calls to the base stations 11 and 12 and the vocoder 18, respectively. Performs a function of communicating with the control unit of (11, 12).

3 shows the configuration of a conventional cellular telephone 13, 14.

The cellular telephone generally includes an antenna 20, an analog receiver 21, a digital data receiver and decoder 22, a digital baseband processor 23, a transmitter 24, a speaker 26, a microphone 25 and The control unit 27 is configured.

The antenna 20 is connected to the analog receiver 21 and the transmitter 24 through a device called a duplexer (not shown), and collects signals transmitted from the base stations 11 and 12 to collect the analog receiver 21. ) And transmits a signal input from the transmitter 24 to the base stations 11 and 12.

The analog receiver 21 receives a signal in the RF (Radio Fiequency) band from the antenna 20, converts it into an IF (Intermediate Fiequency) band, filters using a band-pass filter (BPF), and A / Quantization is performed using the D converter and then transmitted to the digital data receiving and decoder unit 22.

The digital data receiving and decoder unit 22 retrieves pilot signals received from the base stations 11 and 12 under the control of the control unit 27, and demodulates the received bit strings using two or more demodulation devices. Then, the demodulated bit strings are diversity-combined to obtain a good signal, and then an error correction function is performed to output the digital baseband processor 23. FIG.

The digital baseband processor 23 includes a vocoder, decodes a bit string received from the digital data receiver and decoder 22, outputs the decoded bit string to the speaker 26, and outputs a voice signal input from the microphone 25. A / D conversion, encoded by the vocoder and transmitted to the transmission unit (24).

The transmitter 24 converts a signal input from the digital baseband processor 23 into an RF band and transmits the signal to the base stations 11 and 12 through an antenna.

The controller 27 performs a function of controlling the devices.

Meanwhile, in the home appliance market, as Digital Broadcasting using MPEG-2, DVB (Digital Video Broadcasting), Digicipher standards, etc. is being started, the Digital Receiver Decoder (IRD), which can receive digital broadcasting, is a new home appliance product. It appeared.

The configuration of the IRD is shown in FIG.

In FIG. 4, the IRD 30 is a transport demultiplexer 32 for demultiplexing a tuner 31 receiving a broadcast signal transmitted from the satellite 40 through the satellite antenna 41 and a bit string input from the tuner 31. ), An audio decoder 33 and a video decoder 35 for decompressing the input bit stream into audio and video signals, and an OSD 36 for superposing an OSD (On Screen Display) screen on the extended video signal. A D / A converter 34 and an NTSC / PAL encoder 37 for converting an NTSC or PAL signal are provided.

In the IRD 30 of FIG. 4, the tuner 31 demodulates and corrects a broadcast signal received through the satellite antenna 41 to a digital bit string, and then to a transport demultiplexer 32. Output

The transport demultiplexer 32 demultiplexes the bit stream input from the tuner 31 to output an audio and video elementary stream corresponding to a program to be watched. 35).

In addition, the transport demultiplexer 32 detects broadcast schedule information from an input bit string and transmits the broadcast schedule information to the broadcast schedule information processor 38.

The audio decoder 33 decompresses the input audio elementary stream and transmits it to the D / A converter 34, which converts it into an audible analog signal.

The video decoder 35 expands the input video elementary stream and outputs the video elementary stream to the OSD processor 36.

The broadcast schedule information processor 38 decodes the broadcast schedule information input from the transport demultiplexer 32 and stores it in a memory. The broadcast schedule information processor 38 converts the stored broadcast schedule information into OSD data to the OSD processor 36 according to a user's request. Output

The OSD processor 36 superimposes the OSD data input from the broadcast schedule information processor 38 on the video signal input from the video decoder 35 and outputs the OSD data to the NTSC / PAL encoder 37.

The NTSC / PAL encoder 37 converts the input signal into an NTSC or PAL format, which is a viewable video format, and outputs the signal to the TV 42.

Conventional digital cellular telephone system merely provides voice call service between individuals, and as digital broadcasting is activated, future broadcasting schedule related information is broadcast together, and user convenience is increased, but this broadcasting schedule information is internally IRD. In case of being far from the IRD and the storage medium such as going out, the broadcast schedule cannot be searched and the TV broadcast contents of the IRD cannot be reserved.

Therefore, the present invention has been invented in view of such a conventional problem, and an object of the present invention is not only to search for a broadcast schedule using a digital cellular telephone system, but also a digital cellular telephone capable of reserving a broadcast content of an IRD. To provide a broadcast schedule search / TV reservation recording system using the system.

The broadcast schedule search / TV reservation recording system using the digital cellular telephone system of the present invention for achieving the above object is installed in a system control and exchange of a conventional digital broadcast receiver and a digital cellular telephone system and broadcast schedule from a digital broadcast receiver. A broadcast schedule information extracting and converting unit for extracting information and converting the information into a phone format, and a broadcast for simultaneously transmitting broadcast schedule information, broadcast schedule information, and voice information to telephone subscribers installed in the system controller and the switch; A schedule / voice multiplexing unit, a broadcast schedule information processing unit for separating and outputting a bit string received from the phone into broadcast schedule information and voice information, decoding the broadcast schedule information, storing the same in a memory, and displaying the same on a display device; Installed on and depending on user input A reservation recording signal generator for generating a reservation recording signal for activating an IRD and a storage medium in a reservation recording mode, a reservation recording signal detection unit for detecting a reservation recording signal transmitted from a digital cellular telephone and routing it to a public switched telephone network; And a reservation recording processing unit which performs reservation recording by operating the IRD and the storage medium according to the recording signal.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

5 and 6 are block diagrams of the structures in which the digital cellular telephone system and the digital broadcast receiver (IRD) combine the respective components of the broadcast schedule search / TV reservation recording system of the present invention.

The broadcast schedule search / TV reservation recording system using the digital cellular telephone system of the present invention is a system control of a conventional digital broadcast receiver (IRD) 30 and a digital cellular telephone system, as shown in Figs. And a broadcast schedule information extraction and format conversion unit 54 installed in the exchanger 50, a reservation recording processing unit 55, and a storage medium 56 such as a VCR, Digital VCR or DVD, and the system controller and exchanger 50. And a broadcast schedule / voice multiplexer 52, a reserved recording signal detector 53, which multiplexes and outputs voice call information, broadcast schedule information or the like under the control of the system control processor 51, and the digital cellular telephone. A broadcast schedule / separator 60 installed in the bit stream received by the phone under the control of the controller 68 and outputted by separating the broadcast schedule information and the voice information, and the broadcast schedule information. The broadcast schedule decoder 61 to read, the broadcast schedule storage unit 62 which stores the decoded broadcast schedule information, and the broadcast schedule which outputs the stored broadcast schedule information as needed and displays it using the LCD 64. An output unit 63, a reservation recording signal generation unit 65 for generating a reservation recording signal of a user according to an input signal input through the user input unit 69, and the reservation recording signal are multiplexed to the transmission unit 24. The multiplexing unit 66 is provided, and the other components are the same as those of the conventional digital cellular telephone system and the digital broadcast receiver (IRD) 30 described above. Detailed description thereof will be omitted.

The operation of the broadcast schedule search / TV reservation recording system using the digital cellular telephone system of the present invention configured as described above will be described below.

As shown in Figs. 5 and 6, the broadcast schedule information extraction and format conversion unit 54 extracts broadcast schedule information from the IRD 30, converts the broadcast schedule information into a format recognizable by the digital telephone, and the MTSO 50. Output to the digital exchanger 16 therein.

The broadcast schedule / voice multiplexer 52 receives broadcast schedule information from the digital exchanger 16 and voice call information from the digital vocoder 18 to output only voice call information under the control of the system control processor 51. Or output only broadcast schedule information, or multiplex voice and broadcast schedule information and output the same to the digital switch 17.

The output of the broadcast schedule / voice multiplexer 52 is transmitted to the cellular telephones 13 and 14 via the digital switch 17 and the base stations 11 and 12.

The reserved recording signal detection unit 53 activates the IRD 30 and the storage medium 56 in the reserved recording mode among the bit strings inputted from the cellular phones 13 and 14 through the diversity combiner 19. Searches for a signal and detects the existence of a reserved recording signal, and transmits the signal to the reserved recording processing unit 55 through the digital exchanger 16.

The reservation recording processing unit 55 activates the IRD 30 and the storage medium 56 in the reservation recording mode according to the reservation recording signal input from the reservation recording signal detection unit 53 through the digital exchanger 16; That is, to store information such as channel number, start time and duration of the program to be stored in the reserved recording signal, and tune and decode the IRD 30 to the reserved channel when the current time matches the start time of the reserved program. The reservation recording function is implemented by operating the storage medium in a recording mode.

In addition to the functions of the conventional processor, the system control processor 51 may include a broadcast schedule / voice multiplexer so as to insert broadcast schedule information appropriately in the course of routing a call from the base station 11 to the base station 12. 52) to control the function.

In the digital cellular telephone shown in FIG. 6, the bit string output from the digital data reception and decoder unit 22 is divided into broadcast schedule information and voice in the broadcast schedule / audio separation unit 60, so that the voice information is a digital baseband processor. 23 is output to the speaker 26 through the same process as the conventional voice call output to the broadcast schedule, the broadcast schedule information is output to the broadcast schedule decoder 61.

The broadcast schedule decoder 61 decodes the broadcast schedule information input from the broadcast schedule / audio separation unit 60, converts the broadcast schedule information into a format recognizable by the LCD 64, and outputs it to the broadcast schedule storage 62. do.

The broadcast schedule storage unit 62 stores a bit string input from the broadcast schedule decoder 61 in a memory, and outputs the stored broadcast schedule information to the broadcast schedule output unit 63 under the control of the controller 68.

The broadcast schedule output unit 63 performs a function of outputting the broadcast schedule information output from the broadcast schedule storage unit 62 to the LCD 64 under the control of the controller 68.

The reserved recording signal generator 65 generates the reserved recording signal according to the output of the user input unit 67 and outputs the reserved recording signal to the multiplexer 66.

The multiplexer 66 multiplexes the reserved recording signal with the voice information to be transmitted and transmits the reserved recording signal to the transmitter 24, or when there is no voice information, transmits only the reserved recording signal to the transmitter 24.

The video unit 68 includes a broadcast schedule / voice separation unit 60, a broadcast schedule decoder 61, a broadcast schedule storage unit 62, a broadcast schedule output unit 63, a reserved recording signal generator 65, and a multiplexer. (66) and the like to operate the broadcast schedule receiving function and the reservation recording function.

As described above, the present invention transmits the broadcasting schedule information transmitted together with the digital cellular telephone system to the mobile individual using the digital cellular telephone system, so that the user can search the broadcasting schedule at any place at any time desired by the user. In addition, since reservation recording between the IRD and the storage medium can be performed according to user input through the cellular phone, user convenience can be increased, thereby increasing the utility value of both the IRD and the digital cell phone.

1 is a schematic block diagram of a conventional digital cellular telephone system.

2 is a block diagram showing in detail the system control and switch of a conventional digital cellular telephone system.

3 is a block diagram showing the configuration of a conventional cellular telephone.

4 is a block diagram schematically showing the configuration of a conventional digital broadcast receiver.

5 is a block diagram showing a structure in which each component of a broadcast schedule search and TV reservation recording system is combined with a digital broadcast receiver and a digital cellular telephone system of the present invention.

6 is a block diagram showing a structure in which each component of the broadcast schedule retrieval and TV reservation recording system is combined with the cellular telephone of the present invention.

* Explanation of symbols for main parts of the drawings

10,50: System control and exchange 11,12: Base station

13,14: cellular telephone 15,51: system control processor

16, 17: digital exchange 18: digital vocoder

19 Diversity combiner 20 Antenna

21: analog receiver 22: digital data receiver and decoder

23: digital baseband processor 24: transmitter

25: microphone 26: speaker

27 control unit 30 IRD

31: Tuner 32: Transport Demultiplexer

33: audio decoder 34: D / A converter

35: video decoder 36: OSD processing unit

37: NTSC / PAL encoder 38: broadcast schedule information processing unit

40: satellite 41: satellite antenna

42: TV52: broadcast schedule / voice multiple call unit

53: reserved recording signal detection unit 54: broadcast schedule information extraction and format conversion unit

55: reserved recording processing unit 56: storage medium

60: broadcast schedule / voice separation unit 61: broadcast schedule decoder

62: broadcast schedule storage unit 63; Broadcast Schedule Output

64: LCD65: reserved recording signal generator

66: multiplexer 67: user input unit

68: control unit

Claims (3)

A broadcast schedule information extraction and format conversion unit installed in a system control and exchange system of a conventional digital broadcast receiver and a digital cellular telephone system, extracting broadcast schedule information from a digital broadcast receiver, and converting the broadcast schedule information into a telephone format; A broadcast schedule / voice multiplexer installed in the system controller and switch to simultaneously transmit broadcast schedule information or broadcast schedule information and voice information to subscribers; A broadcast schedule information processing unit for outputting a bit sequence received from a telephone by separating broadcast schedule information and voice information, decoding the broadcast schedule information, storing the broadcast schedule information in a memory, and displaying the same on a display device; A reservation recording signal generation unit installed in the telephone to generate a reservation recording signal for activating the digital broadcasting receiver and the storage medium in the reservation recording mode according to a user input, and detecting the reservation recording signal transmitted from the digital cellular telephone to the public switched telephone network. Reserved recording signal detection unit for routing, And a reservation recording processing unit which operates a digital broadcasting receiver and a storage medium according to the reservation recording signal to perform reservation recording. The method of claim 1, The broadcast schedule information processing unit A broadcast schedule / voice separator for separating and outputting the bit strings from broadcast schedule information and voice information; A broadcast schedule decoder for decoding the broadcast schedule information; A broadcast schedule storage unit for storing the broadcast schedule information; And a broadcast schedule output unit for outputting broadcast schedule information stored in the broadcast schedule storage unit when necessary and displaying on the LCD. The method of claim 1, And the storage medium is any one of a VCR, a digital VCR, and a DVD.

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