JP2003018495A - Digital broadcasting receiver and digital broadcasting reception method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To switch a digital broadcast signal, a digital signal input (including IEEE input, USB input, SCSI input, and reproduction signal input of digital signal recording medium) and a conventional analog signal input by using only an input changeover key. SOLUTION: The digital broadcast receiver 1 is provided with a plurality of signal input means comprising digital input means (19, 20, 25 and 21, 14 and 13 or 15 and 13) that externally receives a digital video audio signal, an analog input means 16 that externally receives an analog video audio signal, a reception means 2 that receives a digital broadcast wave, and a plurality of signal processing means (3-6, 18, 7) that apply decode processing to a plurality of video audio signals from a plurality of the signal input means and output a display signal, uses one input changeover key to selectively switch a plurality of the signal input means or a plurality of signal processing means.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a BS (broadcast satellite).
The present invention relates to a digital broadcast receiving apparatus and a digital broadcast transmitting / receiving method capable of receiving television broadcasts by digital broadcast such as broadcast, CS (communication satellite) broadcast, and terrestrial broadcast.

[0002]

2. Description of the Related Art In recent years, digital television broadcasting has been put into practical use. These are CS (communication satellite) broadcasting, BS (broadcasting satellite) broadcasting, etc., and terrestrial digital broadcasting is also planned.

FIG. 6 shows a block diagram of a BS digital broadcast receiving apparatus as a conventional example. The digital broadcast receiving apparatus 1 receives a digital broadcast wave by a tuner 2 from an antenna (not shown), down-converts it, demodulates the digitally modulated signal in a demodulation unit 3 in the subsequent stage, and further performs processing such as error correction. , Get the transport stream (TS) output. The TS processing unit 4 performs processing for extracting a video or audio stream from the TS output. The video and audio streams from the TS processing unit 4 are output to the video / audio decoding processing unit 5.

The video / audio decoding processing section 5 decodes the MPEG compressed video data and outputs it to the video / graphics processing section 6. Further, in the video / audio decoding processing unit 5, the pay broadcast stream is normally scrambled, but it is descrambled and decoded. The voice data is D / A converted and output as the analog voice signal 10 via the voice switching unit 22. Then, the video / graphics processing unit 6 performs various format conversion processing of the video signal and OSD display processing for superimposing graphics data on the video. The video signal 9 and the audio signal 10 output from the video / audio decoding processing unit 5 and the video / graphics processing unit 6 are output to a display unit such as a CRT or a liquid crystal display unit of a television receiver (not shown) and a speaker as an audio unit. Is output.

The CPU 7 is connected to each circuit section via a bus line 23, controls the program selection and decodes digital video and audio, controls the user interface function such as EPG, and receives light from a remote controller. Part 24
Also, it receives the signal from the remote controller transmitter (hereinafter, remote controller) 12 via the remote controller I / F unit 11.

The memory 8 is used as a memory for storing various information such as an electronic program guide (EPG) acquired from broadcast wave data in addition to programs, character fonts and graphic display data.

A plurality of external input terminals 16 are provided on the back or front of the digital broadcast receiving apparatus 1.
In FIG. 1, four types of external input terminals of video 1 to video 4 are shown as an example. A plurality of analog video signals and audio signals are input from the external input terminal 16, an external input switching unit 17 selects an arbitrary external input signal, and a video / audio processing unit 18 separates Y / C and color of the video signal. Video processing such as demodulation and demodulation and amplification processing of audio signals are performed. The video signal is input to the video / graphics processing unit 6 while being switched from the digital broadcast video signal, subjected to various display processes, and output as a video signal 9 to the display means of the television receiver. The audio signal is switched to the audio signal of the digital broadcast by the audio switching unit 22 and output as the analog audio signal 10.

Further, the digital broadcast receiving apparatus 1 is IEEE
An IEEE 1394 input / output terminal 19 (also referred to as an i.LINK connection terminal) conforming to the E1394 specification is provided.
The IEEE 1394 input / output terminal 19 is connected to a digital broadcast receiving device, a digital signal recording / reproducing device (digital video deck, digital video camera, DVD, etc., also referred to as i.LINK device) equipped with an IEEE 1394 input / output terminal to connect a digital signal. Are to be exchanged. Therefore, deterioration of image quality and sound quality is reduced, and various digital data other than video and audio can be exchanged. A digital signal externally input from the IEEE1394 input / output terminal 19 is an IEEE1394I
The digital broadcast signal is switched to and supplied to the TS processing unit 4 via the / F unit 20. The TS processing unit 4 extracts a video or audio stream from the input digital signal and performs the same processing (decoding processing, descrambling processing, format conversion processing, OSD display processing) as the signal of the digital broadcasting, and Output to display means.

As described above, the digital broadcast receiving apparatus 1 is provided with the external input terminal 16 for connecting a plurality of analog signal devices and the IlEE1394 input / output terminal 19 for inputting / outputting digital signals, and the selection is made by a user operation. Be seen.

Switching of the external input signal is performed by the remote controller 12
Alternatively, by pressing an input switch key (not shown) provided on the front surface of the digital broadcast receiving apparatus 1, for example, a digital broadcast signal → video 1 → video 2 → video 3 → video 4 → digital broadcast signal is cyclically switched.

Switching of the IEEE 1394 input signal is performed by pressing an IEEE 1394 key (or i.LINK key) (not shown) provided on the remote controller 12 to switch from a digital broadcast signal to an IEEE 1394 input digital signal. The IEEE 1394 input / output terminal can be connected to a plurality of digital signal devices. In that case, after pressing the IEEE 1394 key, further pressing the IEEE 1394 key, or selecting from the displayed menu screen, an arbitrary IEEE 139
It is necessary to select 4 connected devices.

As described above, the remote controller 12 has the input switching key and the IEEE 1394 key separately assigned,
It is necessary to select and switch the analog signal connection device and the digital signal connection device by operating the respective remote control keys.

However, it is difficult for the user to operate different remote control keys on an externally connected VCR for reproducing analog signals, DVD for reproducing digital signals, etc., and it is difficult to use because there are many remote control keys.
There was a problem saying.

Since the digital video deck can record and reproduce digital signals and analog signals, it is connected to both the IEEE 1394 input / output terminal 19 and the external input terminal 16 to reproduce the digital recorded signal.
It was necessary to switch to the EEE 1394 input for viewing, and to switch the playback of the analog recording signal to the external input for viewing, which made the operation difficult to understand and cumbersome.

Furthermore, in recent years, smart media (R),
Small digital signal recording media such as memory sticks and SD memory cards have been developed and used for recording moving images and still images in digital video cameras, digital cameras and the like. Images can be reproduced and displayed by connecting these media to a digital broadcast receiving apparatus. However, in that case, since the number of remote control keys is further increased, the operation is complicated for the user,
There was a problem that the remote controller itself became large and difficult to operate. Or, to play various recording media,
There is a problem that a procedure is required to operate the remote controller to display a menu screen, select an arbitrary item, etc., and the operation is troublesome for the user, and it is difficult to understand.

As a prior example of a device having an IEEE 1394 input / output terminal, Japanese Patent Laid-Open Nos. 2001-8146 and 200
There is a publication of 1-67163.

In Japanese Patent Laid-Open No. 2001-8146, it is an object to enable execution of a function in which a plurality of devices operate in cooperation with each other by a minimum required operation. Then, for example, regarding the cooperative operation of a plurality of devices such as dubbing, the playback device that plays back data issues a device list display instruction for selecting a required recording device in response to the user's dubbing instruction, and makes a selection. If so, it is stated that the selected recording device is controlled to perform processing such as preparation for dubbing execution and notification of the occurrence of a stop requirement.

Further, in Japanese Patent Laid-Open No. 2001-67163, it is disclosed that an excellent user interface and operability are realized on a control screen for instructing processing executed by a plurality of information processing devices connected to a network. It is an issue.
Then, for example, by using the icon display, IEEE13
It is described that the selection and confirmation of the 94 devices are displayed on the screen easily and intelligibly.

However, the above-mentioned two publications do not mention that the key operation of the remote controller or the like for switching the input is simplified and easy to understand.

[0020]

As described above, in the conventional digital broadcast receiving apparatus, the remote control of the digital broadcast receiving apparatus has the IEEE 1394 input switching key and the external input switching key separately, so that the user can operate them. There was a problem that it was difficult to understand and the remote control was difficult to use. Further, when the digital broadcast receiving device has a reproducing function for various digital signal recording media, if each switching key is provided in the remote controller, the number of remote controller keys increases, the operation is complicated for the user, and the remote controller itself becomes large. There was a problem that it was difficult to use.

Therefore, the present invention has been made in view of the above problems, and a digital broadcasting signal and a digital signal input (IEEE input, U
It is an object of the present invention to provide a digital broadcast receiving apparatus and a digital broadcast receiving method capable of performing input switching between SB input, SCSI input, playback signal input of digital signal recording medium) and conventional analog signal input. Is.

[0022]

According to a first aspect of the present invention, there is provided a digital broadcast receiving apparatus comprising: a digital input means for externally inputting video / audio based on a digital signal; an analog input means for externally inputting video / audio based on an analog signal; A plurality of signal input means having at least a receiving means for receiving a broadcast wave, an operating means having an input switching key for selecting one input from the plurality of signal input means, and the plurality of signal input means A plurality of signal processing means for respectively decoding a plurality of video / audio from the above and outputting a display signal, and selectively switching the plurality of signal input means or the plurality of signal processing means based on the operation of the input switching key. And switching means.

According to the twelfth aspect of the present invention, there is provided a digital broadcast receiving method, which comprises input steps for inputting a digital input, an analog input, and video and audio of a digital broadcast, these digital inputs, an analog input, and a digital broadcast. And a step of switching each of the decoded input signals by operating the input switching key and outputting the decoded input signals.

According to the invention of claim 1 or claim 12,
Digital input from the digital input means (IEEE input, USB input, SCSI input, SCSI input only)
Input, digital recording medium input, etc.), analog input from the analog input means, and digital broadcast input from the digital broadcast receiving means can be switched, and the number of keys of the operating means can be reduced, operability can be simplified, etc. It is possible to produce the excellent advantage of.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the digital broadcast receiving device will be described by taking a BS digital broadcasting receiving device as an example, but the present invention may be a CS digital broadcasting or terrestrial digital broadcasting receiving device. Further, the digital broadcast receiving device is a digital broadcast receiving device built in a television receiver capable of receiving analog broadcast, and a digital broadcast of a set-top box used by supplying a video signal and an audio signal to the television receiver. It may be a receiving device.

[First Embodiment] FIG. 1 shows a block diagram of a digital broadcast receiving apparatus according to the present invention. The same parts as those in FIG. 6 are designated by the same reference numerals and the description thereof will be omitted. The block diagram of FIG. 1 is commonly used in any of the first to eighth embodiments described later.

In the digital broadcast receiving apparatus 1, the tuner 2 as a receiving means selects and receives the digital broadcast wave from an antenna (not shown), down-converts it, and demodulates the digitally modulated signal in the demodulation section 3 in the subsequent stage. Further, processing such as error correction is performed, and the transport stream (T
S) Get the output. The TS processing unit 4 extracts video and audio streams from the TS output, and the video / audio decoding processing unit 5
Output to.

The video / audio decoding processing section 5 decodes the MPEG compressed video data and outputs it to the video / graphics processing section 6. The pay broadcast stream is normally scrambled, but the video / audio decoding processing unit 5 descrambles the stream to perform decoding processing. The voice data is D / A converted and the voice switching unit 2
2 is output as an analog audio signal 10. Then, the video / graphics processing unit 6 performs various format conversion processing of the video signal and OSD display processing for superimposing graphics data on the video. The video signal 9 and the audio signal 10 output from the video / audio decoding processing unit 5 and the video / graphics processing unit 6 are output to a speaker which is a display unit and a sound unit of a television receiver (not shown).

The CPU 7 is connected to each circuit portion via a bus line 23, controls the program selection and decodes digital video and audio, controls various user interface functions such as EPG, and also controls the remote controller. The remote controller 12 via the light receiving unit 24 and the remote controller I / F unit 11.
(See FIG. 6) The remote control signal reception process is performed, and the digital signal external input, the analog signal external input, and the digital broadcast signal input switching process are performed.

The memory 8 is used as a program, character fonts, graphic display data, storage means for storing various information such as EPG acquired from broadcast wave data, and a work area for performing various processes.

Also, the smart media insertion unit 14, SD
Digital information recorded on various digital recording media is taken in through the recording medium I / F unit 13 from a mounting means such as a memory card insertion unit 15 or other digital recording medium insertion unit (not shown), and the digital information is decoded. Control to display video and audio. The recording medium mounting means (14 or 15) and the recording medium I / F unit 13 constitute one digital input means.

The digital broadcast receiving apparatus 1 is also provided with a digital connection terminal 25 such as a USB connection terminal or a SCSI connection terminal (not shown), and is connected to the external device I / F section 21 via a DVD-RAM or a hard disk. , C
It controls a recordable / reproducible device such as a D-ROM or a home server, or a reproduction-only digital signal output device. The digital connection terminal 25 and the external device I / F section 21 are
Constitutes one digital input means.

Further, a plurality of analog signal external input terminals 16 are provided on the back surface or the front surface of the digital broadcast receiving apparatus 1. The external input terminal 16 constitutes an analog input means. In FIG. 1, four types of external input terminals of video 1 to video 4 are shown as an example. This external input terminal 16
Multiple analog video and audio signals are input from
The external input switching unit 17 selects an arbitrary external input signal, and the video / audio processing unit 18 performs video processing such as Y / C separation and color demodulation of the video signal and demodulation / amplification processing of the audio signal. The video signal from the video / audio processing unit 18 is input to the video / graphics processing unit 6 while being switched to the video signal of the digital broadcast, and the video / graphics processing unit 6 performs various display processes to obtain a video signal 9 as a television receiver. Is output to the display means. The audio signal from the video / audio processing unit 18 is switched to the audio signal of the digital broadcast by the audio switching unit 22 and output as the analog audio signal 10.

The digital broadcast receiving apparatus 1 is also provided with an IEEE 1394 input / output terminal 19 (also referred to as an i.LINK connection terminal) conforming to the IEEE 1394 specifications as a digital input / output terminal. This is for connecting a digital broadcast receiving device equipped with an IEEE 1394 input / output terminal, a digital signal recording / reproducing device, etc. (digital video deck, digital video camera, DVD, etc.) and exchanging digital signals. At the IEEE 1394 input / output terminal 19, image quality for digital signal exchange,
In addition to reducing the deterioration of sound quality, it is also possible to exchange various digital data other than video and audio. I
A digital signal externally input from the IEEE 1394 input / output terminal 19 is transmitted to the T via the IEEE 1394 I / F unit 20.
The digital broadcast signal is switched to the S processing unit 4 and supplied. IEEE1394 input / output terminal 19 and IEEE13
The 94 I / F unit 20 constitutes one digital input means. The TS processing unit 4 extracts a video or audio stream from the input digital signal and performs the same processing as the digital broadcast signal (decoding processing, descrambling processing,
Format conversion processing and OSD display processing) are performed and output to the display means of the television receiver.

The demodulation section 3, TS processing section 4, video / audio decoding processing section 5, video / graphics processing section 6, video / audio processing section 18, and part of the CPU 7 are provided with a plurality of signal input means (digital input). Means, analog input means, digital broadcast receiving means), and a plurality of signal processing means for respectively decoding a plurality of video / audio signals and outputting a display signal.

The operation of the first embodiment of the digital broadcast receiving apparatus configured as described above will be described. As described above, the digital broadcast receiving apparatus 1 includes the external input terminal 16 for connecting a plurality of analog signal devices and the IEEE 139.
Four input / output terminals 19 are provided, and the selection is made by the user. In addition, IEEE1394 input / output terminal 1
With respect to 9, it is possible to connect a plurality of digital signal devices by connecting an adapter for connecting a plurality of digital signal devices to one input / output terminal 19.

The external input signal is switched by the remote controller 12
Alternatively, it is performed by pressing an input switching key provided on the front surface of the main body of the digital broadcast receiving apparatus 1. CPU7
When the input switch key is pressed, for example, "digital broadcast signal" → "IEEE1394 input signal" → "video 1" → "video 2" → "video 3" → "video 4" →
Switching control is performed so that the screen display is cyclically switched to "digital broadcast signal". The control is performed according to the program stored in the memory 8. As described above, the digital broadcast receiving apparatus 1 according to the first embodiment can switch between the digital signal of the IEEE 1394 input and the analog signal of the analog signal device and display them on the television receiver only with the input switching key. As a result, the IEEE 1394 key (or i.LINK key) provided on the conventional remote controller is not required, the remote controller does not have to be large, and the user can distinguish between digital signal equipment and analog signal equipment (being aware). Since it is not necessary to operate, there is an effect that it is easy to operate.

The order of switching by pressing the input switching key is, for example, "digital broadcast signal" → "video 1" → "video 2" → "video 3" → "video 4".
The order may be → "IEEE 1394 input signal" → "digital broadcast signal", and the order is not limited to the above embodiment.

In the above embodiment, when the input switch key is pressed, the screen of the receiving device is switched from "digital broadcast signal" to "IEEE 1394 input signal". For example, one screen of "digital broadcast signal" is displayed. , And when the input switch key is pressed, the receiving device becomes a two-screen display and displays the "digital broadcasting signal" on the left screen.
The configuration may be such that "IEEE1394 input signal" is displayed on the right screen, and each time the input switching key is pressed, the right screen switches to the analog signal "video 1 to 4" from the external input terminal 16. The configuration of such a screen is not limited to that of the above-described embodiment, and "digital broadcast signal" and "IEEE 1394" are selected according to the switching operation by the input switching key.
The input signal "and the" analog input signals 1 to 4 "may be arranged in an appropriate order and arranged on the screen, and various configurations are possible.

According to the digital broadcast receiving apparatus of the first embodiment described above, the IEEE 1
It becomes possible to cyclically switch the 394 input digital signal and the analog signal of the analog signal device and display them on the screen. This allows the IEEE 394 key (or i.LINK key) provided on the conventional remote controller.
Therefore, the remote controller itself does not become large, and the user does not need to operate the digital signal device and the analog signal device separately, so that the operability can be improved.

[Second Embodiment] By the way, in the first embodiment, a plurality of types of inputs can be cyclically switched with only one input switching key, while the IE
When a plurality of digital devices are connected to the EE1394 input / output terminal 19, the input switch key is pressed to switch from "digital broadcast signal" to "IEEE1394", and then I
The EEE1394 connected device selection screen is displayed, and it is necessary to select the connected digital device from among them.
Further, when a plurality of analog signal devices are connected to the external input terminal 16, "digital broadcast signal" → "IEEE"
"E1394" → "Video 1" → "Video 2" → "Video 3" → "Video 4" ... in order, and "Video N" (N is any external input terminal) to which the desired analog signal device is connected It is necessary to select (Name). As described above, since the input of the desired connected device is displayed on the screen, the number of input switching key operations and other operations increases, which is troublesome for the user and difficult to understand. Moreover, the desired input of the connected device cannot be immediately displayed on the screen.

Therefore, as a second embodiment of the present invention, a method of controlling the input of the desired connected device to be displayed on the screen by a simple operation when the input switching key is pressed will be described. To do.

First, the operation of the digital broadcast receiving apparatus 1 conforming to the IEEE 1394 specifications will be described with reference to FIG.

In the digital broadcast receiving apparatus 1, the CPU 7 allows the IEEE 139 I / F unit 20 to transmit the IEEE 139.
By exchanging digital information with a digital device connected to the 4-input / output terminal 19, the state of the connected device can be detected.

For example, the IEEE 1394 input / output terminal 19
If the device connected to is a digital VTR, the operating state of the device is power-on or power-off, whether a recording / playback tape is inserted in the device, and other connected devices It is possible to detect the contents such as stop, playback, fast forward, rewind, pause, and recording. Digital VTR
Is playing, the IEEE1394 input / output terminal 19
It is also possible to determine whether the information input from the digital signal is a digital signal such as video or audio, and detect whether the recorded content of the tape is a digital signal.

Further, a digital signal recording / reproducing device conforming to the IEEE 1394 specification can be connected by connecting a plurality of digital signal recording / reproducing devices using the IEEE 1394 input / output terminals provided in each digital signal recording / reproducing device. It is possible. For example, when a digital VTR and a DVD device are connected to the IEEE 1394 input / output terminal 19 of the digital broadcast receiving device 1, the digital broadcast receiving device 1 can control each device.

The control of the CPU 7 when the input switching key is pressed using the above function will be described with reference to the flowchart of FIG.

Here, N digital devices such as DVDs and digital VTRs are connected to the IEEE 1394 input / output terminal 19, and N external VTRs and Bs are connected to the external input terminal 16.
It is assumed that analog devices such as an S tuner and a CS tuner are connected.

The input switching key is pressed (step S
1), the CPU 7 firstly receives the IEEE 1394 input / output terminal 1
The power of the digital device 1 connected to 9 is turned on.
Is detected (step S2). If the power is off (OFF), control is passed to the digital device 2. If the power is on, it is detected whether or not a recording medium such as a DVD or a recording tape is already inserted in the device (step S3). If the recording medium has not been inserted yet, control is passed to the digital device 2. If it has been inserted, for example, at this point, the name and icon of "digital device 1" are displayed in the upper right of the screen of the digital broadcast receiving device 1, and the input is switched from the receiving digital broadcast screen to the digital device 1. To let users know. Further, if the device is reproducing (step S4), the input switching is switched to the digital device 1 (step S6), and the digital signal is decoded and displayed on the screen. If the user is not pressing the input switch key again (S5) within a predetermined time unless the playback is in progress (S4), the input switch is switched to the digital device 1 (S).
Five). This makes it possible for the user to wait for a reproduction operation or automatically reproduce the inserted medium. The same process (S7-S11, S12-) is performed for digital devices 2-N (N is the number of connected digital devices).
Perform S16) to switch to digital devices 2 to N.

Next, as a result of the state detection of the digital devices 1 to N, if the input is not switched, the external input terminal 16
The signal level is detected whether or not there is an input at the terminal of "Video 1" of (step S17). If the video 1 is input, for example, at this point, the name of the "video 1" or an icon is displayed on the upper right of the screen of the digital broadcast receiving apparatus 1, and the input is switched to the video 1 (step S18). Video 1
If there is no input of, the control shifts to "Video 2". The same processing (S19 and S20, S21 and S22) is performed for videos 2 to N (N is the number of external input terminals), and the videos 2 to N are switched.

If the input of the video N is not detected by the above control, the last mode (digital devices 1 to N, video 1 to N) that was previously viewed by operating the input switching key is selected.
Alternatively, it is fixedly switched to, for example, the digital device 1 (step S23).

Further, the order of controlling by pressing the input switching key is not limited to that in the second embodiment. That is, the order controlled by pressing the input switching key is "digital device 1" ... → "digital device N" → "video 1" ... → "video N"
"Video 1" ... → "Video N" → "Digital device 1"
The sequence may be in the order of → digital device N, and when the input switching key is pressed, the input is switched to the last mode state described above, and then the digital devices 1 to N,
You may perform the state detection of the videos 1-N.

According to the digital broadcast receiving apparatus of the second embodiment described above, the operating state (power on / off) of the digital equipment connected to the IEEE 1394 input / output terminal is detected, and the analog input terminal analog. By detecting the output of the device, it is possible to automatically switch to the desired input by pressing the input switch key, or to switch to the input of the desired connected device with a simple operation of the input switch key only a few times. Becomes In addition, the waiting time until switching to the input from the desired connection device is shortened.

[Third Embodiment] Next, the control of the CPU 7 when the input switching key, which is partially different from the above, is pressed will be described with reference to the flowchart of FIG. It should be noted that description of portions common to the flowchart of FIG. 2 will be omitted.

First, when the input switch key is pressed (step S1), it is detected whether a digital signal is input to the IEEE1394 input / output terminal 19 (step S25). IE if digital signal input is detected
It is detected whether the power of the digital device 1 connected to the EE1394 input / output terminal 19 is on (S2).
The state of the digital devices 1 to N is detected and the input is switched as in the embodiment of the flowchart of FIG.
S21). As a result of detecting the states of the digital devices 1 to N,
If the input switching to the digital devices 1 to N is not performed, the last mode (digital devices 1 to N, video 1 to N) previously watched by the input switching key operation, or fixedly switching to the digital device 1 for example (S23).

If the digital signal input (S25) is not detected, the "video 1" of the external input terminal 16 is detected.
The signal level is detected whether or not there is an input at the terminal of (S
17). Similarly to the embodiment of the flowchart of FIG. 2, the inputs of the videos 1 to N are detected and the input is switched (S18 to S).
twenty two). As a result of detecting the inputs of the videos 1 to N, when the input switching is not performed, the states of the digital devices 1 to N are controlled to be detected (S2 to S16). Alternatively, the input mode may be switched to the last mode (digital devices 1 to N, video 1 to N) previously watched by operating the input switching key (step S23), or fixedly, for example, the digital device 1.

When the input switching key is pressed, the input may be switched to the last mode state first, and then the input of the digital signal may be detected. It is not limited to the embodiment shown in FIG.

According to the digital broadcast receiving apparatus of the third embodiment described above, the presence / absence of a digital signal input to the IEEE 1394 input / output terminal is detected to detect the operating state of the digital equipment or the external input terminal. By detecting the output of the analog device, it is possible to automatically switch to the desired input by pressing the input switch key, or to switch to the input of the desired connected device with a few simple operations using the input switch key. It will be possible. In addition, the waiting time until switching to the input from the desired connection device is shortened.

However, in the above second and third embodiments,
It is necessary for the user to perform a preparatory operation such as turning on the power source of the digital device to be used in advance, or setting the analog device in a reproducing state.

[Fourth Embodiment] In general, digital equipment is provided with an analog signal output terminal in addition to an IEEE 1394 digital signal input / output terminal. For example, a digital VTR has a digital recording / reproducing function and a conventional analog recording / reproducing function. Depending on the model, digitally recorded video and audio information can be digitally reproduced, but analog recorded video and audio information. There is a method in which it is impossible to convert the signal into a digital signal and reproduce it, and only analog reproduction is possible. Therefore, the digital broadcast receiving apparatus 1 may connect both the IEEE 1394 input / output terminal 19 and the analog external input terminal 16 to one digital device.

Therefore, the digital broadcast receiving apparatus 1 connects the analog signal output terminal of the digital device 1 to the "video 1" of the external input terminal 16 in advance, and the analog signal output terminal of the digital device 2 to the "video 1" of the external input terminal 16, for example. 2 ”, and has a function of setting by the user so that such connection is stored in the digital broadcast receiving apparatus 1 (hereinafter, such an analog of a digital signal output device External input connection settings for signals are called tied settings).

Therefore, as a fourth embodiment of the present invention, a digital device (i.LINK device in the figure) is shown in FIG.
And an example of a setting registration screen of the external input terminal. The digital broadcast receiving apparatus 1 has various digital equipments such as IEEE1.
When connected via the 394 input / output terminal 19, it is known that it can be automatically registered, and the detailed description of the setting and registration method is omitted here.
Note that automatic registration is performed by various digital devices in IEEE13
The CPU 7 sets the connection state of the 94 input / output terminal 19 to IEEE.
This is performed by detecting it via the 1394 I / F unit 20 and registering it in the memory 8.

For example, as shown in FIG. 4, the digital broadcast receiving apparatus 1 displays a digital device registration screen (i.LINK device registration screen) 61 on the display screen 60. IE
The digital device connected to the EE1394 input / output terminal 19 is automatically recognized and registered. In FIG. 4, three types of digital devices (switching numbers “i.1”, “i.
2 ”and“ i.3 ”are automatically registered (reference numeral 62)
reference). Next, the user connects the analog signal output terminal of each digital device to the video 1, video 2, and video 3 of the external input terminal 16 and associates them with each digital device on the registration screen 61 of the digital device. In the video input terminal item 63, "video 1", "violao 2", and "video 3" are set. This completes the string setting.

As described above, the connection is already set (that is, the digital signal input / output terminal of the digital device is connected to the IEEE 1394 input / output terminal 19 of the digital broadcast receiving apparatus 1 as well as the analog signal output terminal of the digital device). Is connected to the external input terminal 16 of the digital broadcast receiving apparatus 1), a digital signal input is detected at the IEEE13947 output terminal 19 in the second and third embodiments, and a digital signal that outputs the signal is detected. When the device is also specified, it is detected whether or not the device is set to be tied. For example, if the digital device 2 is set to be associated with the "video 2", the "digital device 1" is pressed when the user presses the input switching key.
→ "Digital device 2" → "Digital device 3" → "Video 1" → "Video 3" is skipped and the input to video 2 is not switched. That is, since it has been detected that the digital device 2 is already connected to the IEEE13947 output terminal 19, input switching to the analog input video 2 is skipped because it is unnecessary (or impossible). By doing so, when the user presses the input switching key, the input is not switched to an unnecessary input, and the operability is improved. On the other hand, when the digital signal output is stopped during playback of the digital device 2 (or when the analog signal is output)
Is controlled to switch without skipping "Video 2" when the user presses the input switching key.

According to the digital broadcast receiving apparatus of the fourth embodiment described above, when the input of the digital signal of the digital device set to the IEEE 1394 input / output terminal is set, the input switch key is pressed. Sometimes the input is not switched to the signal of the analog external input terminal that is set to be tied. As a result, when the input switch key is pressed, the input does not switch to an unnecessary input and the operability is improved.

[Fifth Embodiment] By the way, in the second and third embodiments, the power of the digital device used by the user in advance is turned on, or the analog device is set in the reproduction state. Preparatory operation is required. However, in many cases, the user performs input switching so as to connect to a desired digital device or analog device, switches the screen of the digital broadcast receiving device, and then operates (powers on) each externally connected device. On the other hand, each externally connected device is also controlled from the digital broadcast receiving device side. For example, a digital VTR connected to the IEEE 1394 input / output terminal 19 can be controlled from the digital broadcast receiving device side such as power-on, recording, stopping, reproducing, fast-forwarding and rewinding. Further, in the analog VTR as well, by using an IR blaster to output a remote control code (I2C code) from the digital broadcast receiving apparatus side, control such as power-on, recording, stop, reproduction, fast forward, rewind, etc. can be performed.

Therefore, as the fifth embodiment of the present invention, it is necessary that the user can easily select the digital device or the analog device before the operation (power-on) by pressing the input switching key by the user.

In the example of the setting registration screen of the digital device and the external input terminal of FIG. 4, as described above, various digital devices (i.LINK device) connected to the digital broadcast receiving apparatus 1 through the IEEE 1394 input / output terminal 19. ) Is automatically registered. For example, the display screen 60 of FIG.
As shown in the registration screen 61 of the digital device above, the three types of digital devices are the switching numbers 62 “i.1” and “i.2”
It is automatically registered as "i.3". Correspondingly, the analog output of each digital device is connected to the video 1, video 2, and video 3 of the external input terminal 16, and the video input terminal item 63 includes "video 1", "video 2", It is set to be associated with "Video 3".

The switching number 62 "i.1", "i.
2 ”and“ i.3 ”are the number keys“ 1 ”of the remote controller 12,
Corresponding to "2" and "3", if the numeric key registered in the switching number 62 is pressed immediately after the user presses the input switching key, for example within a predetermined time of about 1 second, priority is given. It is controlled so as to switch to the IEEE 1394 input / output of the registered digital device. As a result, it becomes possible to control the registered digital equipment from the digital broadcast receiving apparatus side, and it becomes possible to control the power-on and reproduction of the connected equipment.

In the example of FIG. 4, if the user presses the numeral key "3" immediately after pressing the input switching key, "A
It can be controlled to switch to a digital signal input from "D-VHS of the company" and display the video and audio.

Similarly, on the external input terminal setting registration screen (video input terminal registration screen) 64 of FIG. 4, the user outputs the analog outputs of the two types of analog equipment to the external input terminal 1
6 are connected to the video 4 and the video 5, and the switching number 65 and the video input terminal item 66 are set on the registration screen 64 of the external input terminal. Here, the switching numbers 65 "4" and "5" are set correspondingly to the video input terminals "video 4" and "video 5". In addition, the switching numbers 65 “4” and “5” correspond to the numeric keys “4” and “5” of the remote controller 12, and immediately after the user presses the input switching key, for example, within a predetermined time of about 1 second. When the numeric key registered to the switching number 65 is pressed, the control is switched so that the analog signal input connected to the registered external input terminal 16 is preferentially switched.

It is also possible to control the registered analog equipment from the digital broadcast receiving apparatus side, and the IR blaster is used to output the remote control code (I2C code) of the connected equipment from the digital broadcast receiving apparatus side to supply power. It is possible to control on, playback, fast forward, rewind, etc.

In the example of FIG. 4, if the user presses the numeric key "4" immediately after pressing the input switching key,
It is possible to switch to an analog signal input from “video 4” and control the display of the video and audio.

Since analog devices are not automatically set, it is necessary for the user to set and register the external input terminal setting registration screen 64. In addition, it is assumed that the "type", "manufacturer", and the like in the external input terminal registration screen 64 are set by the user by selecting from the options displayed in the screen (not shown). In addition, since “video 1”, “video 2”, and “video 3” have already been set to be linked on the digital device registration screen 61, “video 1” and “video 2” are displayed on the external input terminal setting registration screen 64. ,
"Video 3" is "6", "7", "8" even for the switching number 65
Shall be set automatically.

As described above, by performing digital device registration and analog signal external input terminal setting registration in advance corresponding to the numeric keys of the remote controller 12, normally, when the user presses the input switch key, "digital Device 1 "→
When switching from "digital device 2" to "digital device 3" to "video 1" to "video 2" in order, press any number key immediately after pressing the input switch key to input the desired connected device. It becomes possible to switch to and display video and audio.

According to the digital broadcast receiving apparatus of the fifth embodiment described above, the digital equipment and the setting of the analog signal external input terminal are registered in advance in correspondence with the numeric keys of the remote controller, and the input is performed. By pressing any numeric key immediately after pressing the switching key (within a predetermined time), it becomes possible to switch to the input of the desired connected device and display the video and audio. As a result, the user can immediately switch to the desired input of the connected device with a simple remote control key operation, which is easy to use. In addition, the waiting time before switching to the input from the desired connection device is shortened.

[Sixth Embodiment] The fifth embodiment
In the embodiment of the present invention, if the numeric key registered to the switching number (see FIG. 4) is pressed immediately after the user presses the input switching key, for example, within a predetermined time of about 1 second, priority registration is completed. It has been described that the digital signal input connected to the IEEE 1394 input / output terminal 19 or the analog signal input connected to the external input terminal 16 is controlled to be switched. In the fifth embodiment, when the user presses the input switch key and then presses a numeric key registered in the switch number after a while (for example, after a lapse of a predetermined time of 1 second or more), It will be exceeded and the channel assigned to the number key will be selected.
That is, the desired input switching is not performed.

Therefore, as a sixth embodiment of the present invention, in order to prevent such an erroneous operation, when the input switching key and the numeral key are simultaneously pressed, the CPU 7 switches to the input of the desired connected device. Controlled by. This prevents an erroneous operation such as selecting a channel assigned to a numeric key as described above.

Further, in the above-described fifth embodiment, since the user presses the input switching key and then the numeric key, the operation can be performed with one hand. Therefore, an erroneous operation such as pressing a key is apt to occur, but when the user simultaneously presses the input switching key and the number key as in the sixth embodiment, the operation is often performed with both hands. Therefore, it is troublesome, but there is also an advantage that erroneous operations are reduced.

According to the digital broadcast receiving apparatus of the sixth embodiment described above, similar to the fifth embodiment, the digital equipment is registered beforehand and the external input terminals for analog signals are set in correspondence with the numeric keys of the remote controller. Register the settings. Then, by simultaneously pressing the input switching key and an arbitrary number key, it becomes possible to switch to the input of the desired connected device and display the video and audio. This prevents an erroneous operation such as erroneously selecting a channel assigned to the numeric keys.

[Seventh Embodiment] By the way, the digital broadcast receiving apparatus 1 shown in FIG.
4, SD memory card insertion portion 15, other memory stick insertion portion, and the like are provided with digital recording medium mounting means, and digital information recorded on various digital recording media inserted therein is recorded on the recording medium I / I.
It is possible to display the video and audio by fetching them through the F section 13, decoding the digital information.

The conventional digital broadcast receiving apparatus is not a function that is frequently used for such a function, or the number of keys on the remote controller increases or the remote controller itself becomes large, which makes it difficult to use or difficult to understand. The dedicated key for playing recording media is not assigned to the remote control. To play back digital recording media with a conventional receiving device, first display a menu screen and select an item with a name such as "Digital camera playback" or "Media playback" from there to record on various digital recording media. The digital information being read was read and played. However, the menu has a hierarchical structure, which requires several key operations on the remote controller, and the operation is difficult to understand. Therefore, a simple method for reproducing various digital recording media has been desired.

Therefore, as the digital broadcast receiving apparatus of the seventh embodiment of the present invention, reproduction of various digital recording media can be performed by the input switching key of the remote controller or the input switching key provided on the front surface of the receiving apparatus main body. To configure.

First, when the input switch key is pressed by the user, the CPU 7 causes the smart media inserting section 14, the SD memory card inserting section 15, other digital recording medium inserting section (not shown), etc. via the recording medium I / F section 13. It is detected whether or not various digital recording media are inserted in the mounting means. The insertion detection method is, for example, in the case of the smart media insertion portion 14, if there is a notch on the right side of the upper surface of the smart media where the metal terminal is located, 3.3V operation product, if there is a notch on the left side, 5.0V.
It is a V-operation product, and by detecting the insertion by this notch, starting electrical processing, and detecting whether or not the metal terminal surface of the smart media is in contact with the electrode in the mounting means, it is possible to operate normally. Determine if smart media is inserted. Similarly, the SD memory card insertion unit 15 and a digital recording medium insertion unit (not shown) also detect whether or not various digital recording media are inserted by detecting the shape of each recording medium and performing an electrical process.

Next, when the insertion is detected in each digital recording medium inserting section, the CPU 7 switches the input and controls so as to output the image and sound of the recording medium.
For example, when the insertion of smart media is detected, the screen is switched to a predetermined screen for smart media playback display, and the CPU 7 takes in digital information recorded from the smart media via the recording media I / F unit 13, Control is performed so that digital information is decoded and video, audio, etc. are displayed.

When a plurality of recording media are inserted, such as when both the smart media and the SD memory card are inserted, when the user presses the input switching key, the CPU 7 is predetermined. Input switching is performed according to priority. This priority order can be set in advance by the user according to an instruction from an operating means such as a remote controller. This is possible under the control of the CPU 7 according to the program stored in the memory 8.

When the recording medium is not inserted, when the user presses the input switching key, C
The PU 7 can be controlled so as to be set to the digital device input in the last mode or the analog external input which was previously viewed by operating the input switching key, or to be fixedly switched to, for example, the digital device 1.

Alternatively, in combination with the other embodiment described above, by pressing the input switching key, the input is switched in the order of “digital recording medium” → “IEEE1394 input” → “analog external input”, or each digital recording is performed. It is also possible to add a switching number to the media and perform processing such as preferential switching by operating the input switching key + numerical key.

According to the digital broadcast receiving apparatus of the seventh embodiment described above, the presence or absence of the insertion of various digital recording media such as the smart media 7 and the SD memory card is detected by pressing the input switching key and desired. It becomes possible to read and display the information of the recording medium. The user inserts the recording medium into the receiving device and can play back the various recording media by a simple key operation, which is easy and convenient to use.

[Eighth Embodiment] By the way, some conventional digital broadcast receivers have a built-in DVD or a hard disk. On the other hand, in a personal computer (hereinafter, personal computer), various external devices can be connected to the USB connection terminal and the SCSI connection terminal. However, in a personal computer, in order to decode digital information of various external devices and display video, audio, etc., the user needs to execute arbitrary software on the personal computer to control the various external devices.

On the other hand, the digital broadcast receiving apparatus 1 according to the present invention shown in FIG. 1 has a USB connection terminal and an S (not shown).
The CPU 7 is provided with a digital connection terminal 25 such as a CSI connection terminal, and the CPU 7 is capable of recording / playback or playback-only of a DVD-RAM, a hard disk, a CD-ROM, a home server or the like connected via the external device I / F unit 21. It is possible to control a digital signal output device (not shown), decode digital information, and display video, audio, and the like. Regarding the USB connection terminal, it is possible to connect a plurality of USB compatible devices by connecting an adapter that connects a plurality of USB compatible devices to one connection terminal.

Therefore, as the digital broadcast receiving apparatus according to the eighth embodiment of the present invention, a USB connection terminal and a SCSI are used.
The reproduction of various external devices connected to the digital connection terminal 25 such as the connection terminal can be performed by the remote controller or the input switching key provided on the front surface of the receiving apparatus main body.

First, when the user presses the input switching key, the CPU 7 causes the external device I / F section 21 to connect various external devices connected to the digital connection terminals 25 such as USB connection terminals and SCSI connection terminals (not shown). Recognize. For example, the CPU 7 on the receiving device side exchanges data with various external devices and recognizes whether the internal file structure of each external device can be read or controlled.

For example, in the case of a DVD, the CPU 7 recognizes from the file structure that the file has a predetermined format for the video and audio of the DVD, and the CPU 7 switches the input to the DVD by the recognition, and Control the DVD to output audio.

In the case of a home server or the like, when the internal file structure of each device is detected by the CPU 7 after the input switching key is pressed, the CPU 7 switches the input and the user selects a file in each device. A predetermined screen for displaying. For example, the recording date and time, the program name, etc. are displayed so that the user can easily select. When an arbitrary file is selected by the user, the CPU 7 reads the file, decodes the file, and controls to output video and audio.

When a plurality of external devices are connected, the input switching is performed according to a predetermined priority order. This priority may be user configurable.

When the external device is not connected, the CPU 7 determines whether it is the last mode digital device input or analog external input that was previously viewed by operating the input switching key.
Control is performed so as to be fixedly switched to, for example, the digital device 1.

Alternatively, in combination with the other embodiment described above, by pressing the input switching key, “external device” → “digital recording medium” → “IEEE 1394 input” →
It is also possible to perform input switching in the order of "analog external input", or to add a switching number to each external device, and to perform processing such as preferentially switching to each external device by operating the input switching key + number key. Is.

According to the digital broadcast receiving apparatus of the eighth embodiment described above, by pressing the input switching key, the US
DVD connected to B connection terminal or SCSI connection terminal,
It is possible to detect the presence / absence of various externally connected devices such as a hard disk and a home server, and read and display the information of the desired external device. The user can connect the external device to the receiving device and reproduce the recorded information of various external devices by a simple key operation, which is easy and convenient to use.

In the eighth embodiment, the digital connection terminal 25 is described as a type in which a DVD or a hard disk is externally attached to the digital connection terminal 25, but the DVD or hard disk may be built in the receiving device 1. Of course, it is possible to detect and control those devices as well.

Next, a specific example of the key arrangement of the remote controller 12 will be shown as an operating means provided with an input switching key which is a main part of the digital broadcast receiving apparatus of the present invention.

FIG. 5 shows an external view of the remote controller 12 in FIG. The remote controller 12 has a power key 121 for turning on / off the power of the digital broadcast receiving apparatus 1, an arrow key 122 for moving the cursor in the up, down, left, and right directions on the screen of the display means of the receiving apparatus 1, and an enter key. 123, number key 12
4, channel up / down key 125, volume key 126, direct channel selection key 127 for digital broadcasting station, input switching key 128, i. A LINK operation panel key 129 and other keys are arranged.

The operation by pressing the input switching key 128 is as described in the first to eighth embodiments. By pressing the input switching key 128, i. LINK mode (IEEE
1394 mode) is selected, i. An operation panel in the LINK mode is displayed on the screen of the receiving apparatus 1, and the i. Select a LINK device or i. Power ON / OFF of LINK device, playback, recording,
Can perform operations such as stopping. After this operation, i. When the LINK operation panel key 129 is pressed, the display on the operation panel is erased,
It can be displayed again.

[0104]

As described above, according to the digital broadcast transmitter / receiver of the present invention, the digital signal input from the digital device or the digital recording medium and the analog signal input from the conventional analog device can be performed only by the input switching key. It is possible to switch between digital broadcast signal input and input, and it is possible to improve operability and simplify operating means.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a digital broadcast receiving apparatus according to the present invention.

FIG. 2 is a flowchart of a digital broadcast receiving apparatus according to the present invention.

FIG. 3 is a flowchart of a digital broadcast receiving apparatus according to the present invention.

FIG. 4 is a diagram showing a screen display example of the digital broadcast receiving apparatus according to the present invention.

5 is an external view of the remote controller in FIG.

FIG. 6 is a block diagram showing a configuration of a conventional digital broadcast receiving apparatus.

[Explanation of symbols]

1. Digital broadcasting receiver 2 ... Tuner (reception means) 3 ... Demodulation unit 4 ... TS processing unit 5 ... Video / audio decoding processing unit 6 ... Video / graphics processing section 7 ... CPU 8 ... Memory 11 ... Remote control I / F section 12 ... Remote control (operating means) 13 ... Recording media I / F section 14 ... Smart media insertion part 15 ... SD memory card insertion part 16 ... External input terminal (analog input terminal) 17 ... External input switching section 18 ... A / V processing unit 19 ... IEEE 1394 input / output terminal 20 ... IEEE 1394 I / F section 21 ... External device I / F section 22 ... Voice switching unit 128 ... Input selector key

Claims (22)

[Claims] 1. A plurality of signal inputs having at least digital input means for externally inputting video / audio based on digital signals, analog input means for externally inputting video / audio based on analog signals, and receiving means for receiving digital broadcast waves. Means, an operation means having an input switching key for selecting one input from the plurality of signal input means, and a plurality of video and audio signals from the plurality of signal input means are decoded and output as display signals. A digital broadcast receiving apparatus comprising: a plurality of signal processing means for controlling the plurality of signal processing means; and a switching means for selectively switching the plurality of signal input means or the plurality of signal processing means based on an operation of the input switching key. . 2. A detecting means for detecting an operating state of a digital device connected to the digital input means; and a detecting means for detecting an operating state of the digital device when the input switching key is operated, according to the operating state of the digital device detected by the detecting means. 2. The digital broadcast receiving apparatus according to claim 1, further comprising: a unit that controls the switching unit to preferentially select an input of the digital input unit to which a digital device is connected. 3. A detection means for detecting that a video / audio signal of a digital signal is input to the digital input means, and the digital input means of the digital input means according to a detection result of the detection means when the input switching key is operated. The digital broadcast receiving apparatus according to claim 1, further comprising: a unit that controls the switching unit so as to preferentially select an input. 4. A detecting means for detecting an operating state of a digital device connected to the digital input means, and detecting that a video / audio of a digital signal is input, and the detecting means when the input switching key is operated. 2. The digital broadcast receiving apparatus according to claim 1, further comprising: a unit that controls the switching unit so as to preferentially select an input of the digital input unit according to the detection result of. 5. A detecting device for detecting an operating state of a digital device connected to the digital input device and detecting that a video / audio signal of a digital signal is inputted, and the digital device are linked and set (digital). If the device is connected to both the digital input means and the analog input means), it is judged that there is digital input from the operation state of the digital device detected by the detection means and the detection result of the digital video / audio. In this case, the digital broadcast receiving apparatus according to claim 1, further comprising: a unit that controls the switching unit so as not to switch to an analog output of the digital device when the input switching key is operated. 6. A registration for assigning an arbitrary number to at least one digital external input terminal forming the digital input means and at least one analog external input terminal forming the analog input means for registration. And a means for controlling the switching means so as to preferentially select a video / audio input of a registered input terminal by pressing a numeric key after operating the input switching key. The digital broadcast receiving apparatus according to claim 1. 7. Registration means for allocating and registering an arbitrary number to each of at least one digital device connected to the digital input means; and registration by pressing a numeral key after operating the input switching key. 2. The digital broadcast receiving apparatus according to claim 1, further comprising: a unit that controls the switching unit so as to preferentially select the video and audio of the digital device. 8. An arbitrary number is assigned and registered to each of at least one digital device connected to the digital input means, and an arbitrary number is assigned to each of the analog external input terminals (different from the digital device). Registering means for allocating and registering, and controlling the switching means so as to preferentially select the registered audio / video of the digital device or the analog input terminal by pressing the number key after operating the input switching key. The digital broadcast receiving apparatus according to claim 1, further comprising: 9. The digital broadcast receiving apparatus according to claim 6, wherein the input switch key and the number key are simultaneously pressed to select the input signal preferentially. 10. A mounting means for at least one digital recording medium connected to the digital input means, a detecting means for detecting whether or not the digital recording medium is mounted in the mounting means, and an input switching key operation. At this time, according to the detection result of the mounting of the digital recording medium by the detecting means, a means for controlling the switching means so as to preferentially select the video / audio from the digital recording medium is further provided. The digital broadcast receiving apparatus according to claim 1. 11. At least one USB connection means and / or SCSI connection means connected to the digital input means, and detection means for detecting whether or not a digital device is connected to the USB connection means or SCSI connection means. Further comprising means for controlling the switching means so as to preferentially select the video / audio of the digital device according to the detection result of the digital device connection by the detection device when the input switching key is operated. The digital broadcast receiving apparatus according to claim 1, which is characterized in that. 12. A digital input, an analog input,
Input steps that enable input of digital broadcast video and audio, steps of decoding these digital inputs, analog input, and digital broadcast video and audio respectively, and operate each input signal by operating the input switching key. A method for receiving digital broadcasting, comprising the steps of: 13. A step of detecting an operating state of a digital device which supplies the digital input, and preferentially selecting an input of the digital device according to an operating state of the digital device when the input switching key is operated. 13. The digital broadcast receiving method according to claim 12, further comprising: 14. The method further comprises: a step of detecting the digital input; and a step of preferentially selecting the digital input according to a detection result of the digital input when the input switching key is operated. 13. The digital broadcast receiving method according to claim 12. 15. A step of detecting an operating state of a digital device which supplies the digital input, and detecting the digital input, and, according to a result of the detection, when the input switching key is operated.
13. The digital broadcast receiving method according to claim 12, further comprising the step of preferentially selecting the digital input. 16. A step of detecting an operating state of a digital device which supplies the digital input and detecting that the digital input is input, and the digital device which supplies the digital input is linked and set. If it is connected to both digital input and analog input), the step of judging the presence or absence of digital input from the operating status of the digital equipment and the detection result of digital input; 13. The digital broadcast receiving method according to claim 12, further comprising a step of controlling so as not to switch to an analog output of the digital device when a key is operated. 17. A step of assigning and registering an arbitrary number to at least one digital external input terminal for digital input and at least one analog external input terminal for analog input, and operating the input switching key. 13. The digital broadcast receiving method according to claim 12, further comprising the step of, by pressing a number key, preferentially selecting a video / audio input of a registered input terminal. 18. A step of assigning and registering an arbitrary number to each of at least one digital device which supplies a digital input, and pressing a numeric key after operating the input switching key, 13. The digital broadcast receiving method according to claim 12, further comprising a step of preferentially selecting video and audio. 19. An arbitrary number is assigned and registered to each of at least one digital device that supplies a digital input, and an arbitrary number (different from the digital device) is assigned to each of at least one analog external input terminal of the analog input. And registering, and pressing the number key after operating the input switching key to preferentially select the video and audio of the registered digital device or the analog input terminal. 13. The digital broadcast receiving method according to claim 12, wherein: 20. The digital broadcast receiving method according to claim 17, wherein the input switch key and the number key are simultaneously pressed to select the input signal preferentially. 21. A step of detecting whether or not a digital recording medium is mounted in at least one mounting means of the digital recording medium, and a detection result of the mounting of the digital recording medium by the step when the input switching key is operated. 13. The digital broadcast receiving apparatus according to claim 12, further comprising: a step of preferentially selecting video and audio from the digital recording medium. 22. A step of detecting whether or not a digital device is connected to at least one of the USB connecting means and / or the SCSI connecting means, and a detection result of the digital device connection by the step when the input switching key is operated. 13. The digital broadcast receiving apparatus according to claim 12, further comprising: a step of preferentially selecting video and audio of the digital device in accordance with.