CN100423564C - Receiver apparatus and information recording/outputting apparatus - Google Patents

Receiver apparatus and information recording/outputting apparatus Download PDF

Info

Publication number
CN100423564C
CN100423564C CNB2006101086325A CN200610108632A CN100423564C CN 100423564 C CN100423564 C CN 100423564C CN B2006101086325 A CNB2006101086325 A CN B2006101086325A CN 200610108632 A CN200610108632 A CN 200610108632A CN 100423564 C CN100423564 C CN 100423564C
Authority
CN
China
Prior art keywords
information
signal
frequency
programme
signal processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2006101086325A
Other languages
Chinese (zh)
Other versions
CN1905639A (en
Inventor
小路弘之
菅义和
青户康一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of CN1905639A publication Critical patent/CN1905639A/en
Application granted granted Critical
Publication of CN100423564C publication Critical patent/CN100423564C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

To provide an information recording output apparatus whereby program information recorded on a recording medium can easily and immediately be viewed and the recording medium can effectively be utilized. First and second signal processing units are each configured by an IC, so that the circuit space occupying in a receiver apparatus can be reduced. The signal path can be shortened from a BPF section inputting a program signal coming from a broadcasting station to a demodulation section compared with the related art. The transmission loss on the signal path can be thus reduced compared with the related art. The possible route for noise entering from the outside to the first and second signal processing units can be made as short as possible. This enables to reduce the noise entering from the outside, and prevents the signals coming over the signal path from being attenuated by the noise so that the signal reception sensitivity can be increased.

Description

Receiving system and information recording/outputting apparatus
Background of invention
The present invention relates to for example can to receive programme information, and the receiving system of the programme information received of output of many channels that the broadcasting station sends, and the information recording/outputting apparatus with this receiving system.
Background technology
In recent years, owing to use terrestrial broadcasting, the use broadcasting satellite (BroadcastingSatellite of ground-plane antenna; Abbreviate BS as) the expansion of BS broadcasting, the CS broadcasting of using communication satellite (Communication Satellite: abbreviate CS as) and community antenna TV (Community Antenna Television: abbreviate CATV as) broadcasting etc., broadcasting multi-channelization is constantly made progress.Along with broadcasting multi-channelization, the recording capacity of the tape decks such as hard disk recording machine that recorded program is used improves constantly, and the recorded announce platform increases at the channel number of the programme information of synchronization transmission simultaneously.
Along with the development of broadcast technology and recording technique, require exploitation to have to receive simultaneously multi-channel programme information and tape decks such as display unit such as television receiver, projector and hard disk recording machine are exported simultaneously the receiving system of tuner of the programme information of reception.As the prior art that relates to the receiving system that is in this situation, the known technology that has Japan's patent to deliver and disclose in 2000-513896 communique, the flat 6-69829 communique of patent disclosure, the flat 10-294930 communique of patent disclosure and No. 3100213 communique of utility model registration.
Japan's patent is delivered the multiple-tuned type receiver of stating in the 2000-513896 communique, make on the structure and in 1 assembly, have 2 tuners, wireless frequency or its high order harmonic component harmony of the signal that the frequency of oscillation that does not make 2 tuners and corresponding another tuner receive, thus the mutual interference of 2 tuner phases prevented.
The integrated circuit (IC) of the flat 6-69829 communique statement of Japan's patent disclosure is changed receiving system, make the composition that makes tuning circuit on the structure and use high frequency characteristics and 3 good GaAs field-effect transistors of distorted characteristic, and comprise RF and amplify IC and these 2 blocks of circuit wafers of AGC frequency mixer IC, thereby obtain the minituner circuit that 3 distorted characteristics are good and number of components is few.
The digital tuner of the flat 10-294930 communique statement of Japan's patent disclosure, make on the structure under the control of CPU, utilize the tuner person's specified channel and adjacent (in other words that replaces the handover operation with this channel forward, the channel switching direction is adjacent) channel, thereby two-path video, audio signal that the parallel receive antenna is supplied with.
The TV tuner of No. 3100213 communique statement of utility model registration, a plurality of TV tuner of parallel configuration on female circuit board.After making the TV signal by the 1st wide-band amplifier amplification input on each tuner architecture, the TV signal that will be amplified by distributor is assigned to 2 directions.
In the prior art that No. 3100213 communique of utility model registration discloses, when being input to the TV signal of tuner by the distributor distribution, signal level decays with allotment with being directly proportional, and " distribution loss " becomes big.Therefore, need balanced-to-unbalanced transformer that using compensation distributes loss to use be set, amplify compensating circuit in TV tuner with individual components such as transistor and filters.Yet, because the parts constant absolute values of individual component produces deviation, must improve the receiving sensitivity of tuner, need to adopt the high-frequency unit of high-performance and high price, so the problem that exists manufacturing cost to increase.
And, the prior art that No. 3100213 communique of utility model registration discloses, make on the structure and be arranged side by side a plurality of TV tuner of reinstating the metal shell shielding together with described compensating circuit one, thereby have the problem of the circuit scale increase of the receiving system that comprises tuner.Along with the increase of circuit scale, the problem that also exists the receiving system power consumption to increase.
Developed information recording/outputting apparatus with the receiving system that adapts to this multichannelization.The multichannel record reproducing device that the flat 9-9193 communique of Japan's patent disclosure discloses, make on the structure and have a plurality of tuners and big capacity hard disk driver, each tuner receives the broadcasting of many channels, will video signal coding based on the broadcasting that receives after, record hard disk drive.The signal transformation of decoder after the described coding of hard disk drive record becomes original video signal, is input to television receiver, reproduces the program that described code signal is represented by television receiver.
The broadcast program recorder that the patent disclosure 2003-289490 of Japan communique discloses, make on the structure when the operator sets subscription and video recording or during actual the video recording, the operator sets the maintenance time limit of recorded programs information, and according to time limit of this setting deletion programme information.
The prior art that the flat 9-9131 communique of Japan's patent disclosure discloses, be formed in tuner and receive a plurality of television broadcastings, with video signal coding, and when recording hard disk drive, in order to write down vision signal as much as possible, carry out record in the mode of for example compressing processing, but vision signal that can only recording disk drive records capacity share etc.In order to write down more vision signal, can consider the hard disk drive that the configuration record capacity is bigger, but exist the hard disk drive recording capacity big more, the problem that manufacturing cost increases more.
The prior art that the patent disclosure 2003-289490 of Japan communique discloses constitutes the maintenance time limit deletion programme information of setting according to the operator, guarantees the recording capacity of recording medium, thereby effectively utilizes recording medium.Yet the 2nd prior art needs the operator to set preserved program video recording, and when not setting subscription and video recording and when beginning to see program, the operator can not see the part of not seeing as yet of the program of forgetting the program of setting subscription and video recording and beginning to see midway midway.Therefore, there be the problem low to operator's convenience.
The object of the present invention is to provide a kind of receiving system and information recording/outputting apparatus that can improve signal receiving sensitivity and reduce manufacturing cost and power consumption.
Another object of the present invention is to provide a kind of can be convenient and watch the programme information of recording medium immediately and can effectively utilize the information recording/outputting apparatus of recording medium.
Summary of the invention
Receiving system of the present invention can receive the related programme signal of program of the channel of many different frequency ranges that the broadcasting station sends, and comprises
The programme signal that receives is carried out signal processing, and the 1st signal processing part of forming by integrated circuit;
The downlink side that is configured in the 1st signal processing part carries out signal processing with the signal to the output of the 1st signal processing part, and the 2nd signal processing part of being made up of integrated circuit; And
The the 1st and the 2nd signal processing part supplied with makes its control part that carries out the predetermined instruction that signal processing uses,
The 1st signal processing part has
The 1st filter section that the programme signal of the 1st frequency range in the programme signal of many channels is passed through;
Amplify the amplifier of the programme signal of the 1st filter section output;
To the programme signal of each channel allocation amplifier output distributor;
Produce the local oscillator of the oscillator signal of predetermined oscillation frequency;
The programme signal of each channel that distributor is distributed and the oscillator signal that local oscillator produces carry out mixing, and produce the frequency mixer portion of mixed frequency signal;
The control portion of gain of the gain of the mixed frequency signal that control frequency mixer portion produces; And
The 2nd filter section that the mixed frequency signal of the 2nd frequency range in the mixed frequency signal of control portion of gain output is passed through,
The 2nd signal processing part has
The mixed frequency signal of the 2nd filter section output is transformed into the converter of digital signal;
The 3rd filter section that the digital signal of the 3rd frequency range in the digital signal of converter output is passed through; And
The demodulation section that the digital signal of the 3rd filter section output is carried out demodulation.
According to the present invention, the 1st signal processing part of being made up of integrated circuit carries out signal processing to the related programme signal of program of the channel of many different frequency ranges of broadcasting station transmission.Then, be configured in the downlink side of the 1st signal processing part and predetermined instruction that the 2nd signal processing part be made up of integrated circuit is supplied with according to control part carries out signal processing to the signal of the 1st signal processing part output.
In the 1st signal processing part, the programme signal of the 1st frequency range in the programme signal of many channels is amplified by amplifier by after the 1st filter section.Distributor is distributed to each channel with the programme signal of amplifier output.Produce the oscillator signal of preset frequency by local oscillator.Frequency mixer portion is with the programme signal of each channel of distributor distribution and the oscillator signal mixing of local oscillator generation, and the generation mixed frequency signal.The gain of the mixed frequency signal that control portion of gain control frequency mixer portion produces.The mixed frequency signal of the 2nd frequency range in the mixed frequency signal of control portion of gain output is by the 2nd filter section.
In the 2nd signal processing part, the mixed frequency signal of the 2nd filter section of the 1st signal processing part being exported by converter is transformed into digital signal.The mixed frequency signal of the 3rd frequency range from the digital signal of converter output is by after the 3rd filter section, by demodulation section with its demodulation.
As mentioned above, constitute the 1st signal processing part and the 2nd signal processing part with integrated circuit, thereby with above-mentioned prior art like that and the row arrangement composition of reinstating a plurality of tuners of metal shell shielding together with holding circuit one compare, can reduce to comprise the circuit scale of the receiving system of the 1st and the 2nd signal processing circuit.And the distributor by the 1st signal processing part that constitutes with integrated circuit distributes the programme signal of receiving, can reduce the signal transmission attenuation of the 1st signal processing part.Therefore, the impedance of the 1st signal processing part is kept in balance.Like this, different with above-mentioned prior art, for compensation distributes in the holding circuit that loss is provided with, can reduce the parts constant absolute values deviation of individual component.
By reducing the circuit scale of receiving system, the 1st filter cell that can also make the programme information that the input broadcasting station sends to the distance of the signal path of demodulating unit is shorter than this distance in the above-mentioned prior art.Thereby the loss that can make signal path is less than this loss in the above-mentioned prior art, and the level deviation of the signal that can also reduce to transmit in signal path simultaneously can transmit more stable signal.
Owing to can reduce the distance of described signal path, therefore can reduce the scale of external noise again to the intrusion path of the 1st and the 2nd signal processing part as far as possible.Therefore, can reduce noise, prevent that noise from decayed the signal that transmits on the signal path, thereby signal receiving sensitivity is improved from outside invasion.Above-mentioned prior art formation is provided with individual high-frequency unit to improve signal receiving sensitivity, and in contrast, the present invention needn't be provided with individual high-frequency unit for improving signal receiving sensitivity.Therefore, compared with the prior art, the number of components of receiving system can be reduced, manufacturing cost and power consumption can be reduced.
Again, of the present invention being characterized as: described demodulation section is a digital signal processing device.
According to the present invention, demodulation section is digital signal processing device (hereinafter being sometimes referred to as " DSP ").DSP can switch to another demodulation process with demodulation process from a demodulation process according to the predetermined instruction (being specially the instruction that predetermined demodulation process is switched to another demodulation process) that control part is supplied with.DSP can rewrite demodulation process according to the predetermined instruction (being specially the instruction that the demodulation process that DSP is write down in advance is rewritten into another demodulation process) that control part is supplied with again.Therefore, receiving system can be by the demodulation process that writes down in advance according to transmission standard change DSP, and according to meeting the demodulation process that transmits standard, demodulation more easily is input to the signal of DSP.And receiving system needn't be provided with special-purpose demodulation section respectively according to the transmission standard, thereby compares when special demodulating portion is set, and can reduce manufacturing cost.
Feature of the present invention is again: formation can change in the signal level at least one passed through of the figure signal level of passband width, converter of described the 1st filter section and the 3rd filter section.
According to the present invention, formation can change in the signal level at least one passed through of the figure signal level of passband width, converter of described the 1st filter and the 3rd filter section.Particularly, formation can change the described passband width that meets the scheduled transmission standard, the figure signal level of control part supply respectively and pass through signal level, thereby reduce the level deviation of the signal that in the 1st and the 2nd signal processing part, transmits, it is stable to seek signal level.
Because it is stable to seek signal level like this, the 1st filter section, amplifier, the 2nd filter section, transformation component and the 3rd filter section do not need to make signal level to stablize the predetermined signal processing of usefulness, can alleviate the burden of described signal processing.Thereby, can reduce the power consumption of the 1st filter section, amplifier, the 2nd filter section, transformation component and the 3rd filter section as far as possible.
Feature of the present invention is again: described converter is the delta sigma analog digital converter.
According to the present invention, with Δ-Z analog digital converter running converter.By using the delta sigma analog digital converter, the mixed frequency signal that can accurately the control portion of gain of the 1st signal processing part be exported is transformed into digital signal.In other words, can obtain high-precision digital signal, and not be subjected to the outside invasion The noise.
Therefore, removing signal processing that the outside invasion noise uses in the 1st filter section, amplifier, the 2nd filter section and the 3rd filter section needn't high accuracy, can alleviate the burden of the described signal processing of the 1st filter section, amplifier, the 2nd filter section and the 3rd filter section.Thereby, can reduce the power consumption of the 1st filter section, amplifier, the 2nd filter section and the 3rd filter section as far as possible.
Feature of the present invention is again: described frequency mixer portion utilizes the Direct Conversion mode, carries out the frequency translation of programme signal to mixed frequency signal.
According to the present invention, frequency mixer portion utilizes the Direct Conversion mode to do the frequency translation of the programme signal of high-frequency signal to mixed frequency signal.During without the Direct Transform mode, need local oscillator produce to be fit to the oscillator signal of the frequency of converter, by frequency mixer portion with this oscillator signal and programme signal mixing, thereby the frequency translation of the programme signal that receives is become the frequency of suitable converter.This frequency conversion mode signal of non-required frequency sometimes also is subjected to conversion, and with the programme signal mixing, thereby the filter section of the signal of the non-required frequency of filtering need be set, utilize the signal of the non-required frequency of this filter section filtering.
In contrast, the present invention is directly converted to the mixed frequency signal of low frequency signal from the programme signal of high-frequency signal, thus the signal that can as far as possible suppress non-required frequency be subjected to conversion and with the programme signal mixing.Like this, the present invention since the signal that can suppress non-required frequency be subjected to conversion and with the programme signal mixing, the filter section that the signal of the described non-required frequency of filtering is used needn't be set.Therefore, compare when the filter section that the signal of the non-required frequency of filtering uses being set, can reduce the number of components of receiving system, can also reduce power consumption simultaneously with needs.
Feature of the present invention is again: described control part is controlled the 1st filter section, makes the passband width of described the 1st filter section for smaller or equal to the frequency bandwidth of 2 times of minimum receive frequencies of programme signal with smaller or equal to the 1/2 programme signal medium and small side's of the frequency bandwidth of high receive frequency frequency bandwidth.
According to the present invention, control part is controlled the 1st filter section, and the passband width that makes the 1st filter section is for smaller or equal to the frequency bandwidth of 2 times of minimum receive frequencies of programme signal with smaller or equal to the 1/2 programme signal medium and small side's of the frequency bandwidth of high receive frequency frequency bandwidth.
When receiving system receives the programme signal of a plurality of frequency ranges, because the signal level of each frequency is different because of the surrounding environment of receiving system, need utilize amplifier and the 1st～the 3rd filter section that the program level of receiving is done to amplify or attenuation processing, be the prearranged signals level, particularly, be the signal level of demodulation section energy demodulation.When the difference of the highest receive frequency of programme signal and the minimum receive frequency of programme signal is big and when receiving the programme signal of more frequency range simultaneously, sometimes amplifier and the 1st～the 3rd filter section can not make the program level of receiving amplify and decay to the prearranged signals level, thereby the dynamic range of receiving system reduces.
Therefore, the present invention is controlled to the medium and small side's of described 2 frequency bandwidths frequency bandwidth by the passband width with the 1st filter section, can prevent that the signal that the difference of the highest receive frequency and minimum receive frequency is big is sent to each one of the downlink side that is configured in the 1st filter section.Like this, can make the monitoring arrangement great dynamic range reduce to be inhibited.Therefore, the processing that amplifier and the 1st～the 3rd filter section needn't make described program level amplify or decay can alleviate the burden of the described processing of amplifier and the 1st～the 3rd filter section.Like this, the power consumption of amplifier and the 1st～the 3rd filter section is reduced as far as possible.
Feature of the present invention is again: also comprise another frequency mixer portion and another local oscillator of the upstream side of the downlink side that is configured in described amplifier and frequency divider,
Described another local oscillator has the function that produces oscillator signal,
The oscillator signal that the programme signal of described another frequency mixer portion pair amplifier output and described another local oscillator produce carries out mixing, and produces mixed frequency signal.
According to the present invention, dispose another frequency mixer portion and another local oscillator at the downlink side of amplifier and the upstream side of frequency divider.The oscillator signal that the programme signal of described another frequency mixer portion pair amplifier output and described another local oscillator produce carries out mixing, and produces mixed frequency signal.Distributor is distributed to each channel with the mixed frequency signal that another frequency mixer portion produces.The mixed frequency signal that is configured in each channel that oscillator signal that the frequency mixer portion of the downlink side of distributor produces local oscillator and distributor distribute carries out mixing, and produces new mixed frequency signal, is sent to converter through control portion of gain and the 2nd filter section.
As indicated above, by another frequency mixer portion that is configured in amplifier downlink side and distributor upstream side carry out from programme signal change to be more suitable near the frequency conversion of mixed frequency signal of the frequency the preset frequency of converter unit than this programme signal after, and then carry out being more suitable for than this mixed frequency signal near the frequency conversion of the mixed frequency signal of the frequency the preset frequency of converter unit by the frequency mixer of the downlink side that is configured in distributor from this mixed frequency signal.Like this.The frequency (being receive frequency) that can make the programme signal of receiving is easily near the preset frequency that is fit to converter, and the signal that can will be fit to the frequency of converter is input to converter.
Therefore, make in the processing that signal that the described distributor of the 2nd filter section distributes uses for the signal of the frequency that is fit to converter, do not need high accuracy, can alleviate the burden of the described processing of the 2nd filter section.Because input is fit to the signal of the frequency of converter to converter, in other words, the signal that incoming signal level is stable, converter needn't make signal level stablize the predetermined signal processing of usefulness, can alleviate the burden of described signal processing.
Like this, the power consumption of the 2nd filter section and converter is reduced as far as possible.
Feature of the present invention is again: constitute described frequency mixer portion by the passive frequency mixer circuit, constitute described another frequency mixer portion by the active mixer circuit.
According to the present invention, constitute the frequency mixer portion of the downlink side that is configured in distributor by the passive frequency mixer circuit, constitute another frequency mixer portion of the upstream side of the downlink side that is configured in amplifier and distributor by the active mixer circuit.Utilize the active mixer circuit, carry out the frequency conversion of programme signal, utilize the passive frequency mixer circuit of the downlink side that is configured in distributor to do the frequency conversion of mixed frequency signal to the new mixed frequency signal different with this mixed frequency signal to mixed frequency signal.Thereby the level equalization that can make new mixed frequency signal for example is stable at the signal level of demodulation section energy demodulation in the prearranged signals level.
By making the stable mixed frequency signal of signal level be sent to the 2nd signal processing part by the 1st signal processing part like this, converter and the 3rd filter section needn't make signal level stablize the signal processing of usefulness, can alleviate the burden of described signal processing.Thereby, can reduce the power consumption of converter and the 3rd filter section as far as possible.
Again, information recording/outputting apparatus of the present invention,, load described receiving system.
According to the present invention, can realize loading the information recording/outputting apparatus of such receiving system mentioned above.Therefore, can realize to reach the information recording/outputting apparatus of each effect mentioned above.
Information recording/outputting apparatus of the present invention receives the related programme information of program of many channels of broadcasting station transmission, and writes down and export the programme information of many channels of receiving, comprises
Can pass through antenna program receiving information, and obtain the tuner pack portion of the electronic program guide information that sends with programme information from the broadcasting station;
Recorded program recording of information medium;
Specify the operating portion of the programme information of wishing; And control part, the electronic program guide information that this control part is obtained according to tuner pack portion and the programme information of operating portion appointment, produce the recorded program information that expression should record the programme information of recording medium, and according to the recorded program information that produces guaranteeing the recording capacity of recording medium, and selectively the programme information of hope is recorded recording medium.
According to the present invention, tuner pack portion obtains the electronic program guide information that for example sends with programme information from the broadcasting station by the related programme information of program of many channels of antenna reception broadcasting station transmission.Operating portion is for example according to operator's operation, the programme information that the assigned operation person wishes.The electronic program guide information that control part is obtained according to tuner pack portion and the programme information of operating portion appointment produce the recorded program information that expression should record recording medium.Control part is again according to recorded program information, with the recording capacity of guaranteeing recording medium and carry out record selectively.
Because the recording medium programme information that the operator wishes in the programme information that sends of recorded announce platform selectively, the operator needn't do the setting of subscription and video recording as above-mentioned prior art.Therefore, the present invention is different with above-mentioned prior art, can prevent because of forget make subscribed recording setting can not the rating program.
Because the programme information that the recording medium operator wishes, the operator outputs to television receiver etc. by the programme information with recording medium, can be than being easier to and promptly watching programme information.Thereby even if the programme information from begin to watch midway, the operator also can be than being easier to and watching reliably the part of not watching in this programme information.Like this, operability and convenience to the operator are improved.
Owing to the recording capacity of guaranteeing recording medium and selectively recording medium is carried out record, can effectively utilize recording medium.Therefore, can prevent the recording medium capacity causes the operator programme information of hope can not be recorded the not proper of recording medium inadequately.
Again, of the present invention being characterized as: the up-to-date electronic program guide information that control part is obtained according to the programme information and the tuner pack portion of operating portion appointment produces recorded program information.
According to the present invention, control part produces recorded program information according to the up-to-date electronic program guide information that the programme information of operating portion appointment and tuner pack portion obtain.Therefore, when changing the content of programme information owing to broadcasting special series and prolongation broadcasting etc., also can make the change of this programme information obtain reflection again, seek up-to-date electronic program guide information and with the consistency of its program information corresponding, make programme information record recording medium again.Like this, can prevent that the programme information that this programme information and operator were wished when the operator watched the programme information of recording medium is inconsistent, in other words, can prevent inconsistency.Therefore, the operator can watch the programme information of hope reliably, can further improve the convenience to the operator.
Feature of the present invention is again: the same programme information of many channels of described tuner pack portion's reception,
Described programme information comprises the image information of presentation video at least,
Described control part is in the mode of the compression ratio of the image that each channel changed image information and represent, makes the same programme information of many channels that tuner pack portion receives record recording medium.
According to the present invention, tuner pack portion receives the same programme information of many channels.Control part changes the compression ratio of the image that image information represents to each channel, and the same programme information of many channels that tuner pack portion is received records recording medium.Therefore, even if same programme information, the different respectively programme information of image information compression ratio that also each channel record programme informations of many channels is comprised in the recording medium.
Therefore, when the operator records the programme information that comprises image information of recording medium external record medium such as magnetic recording medium and optical recording media, only select the programme information of the compression ratio of wishing just can make the programme information of the compression ratio of the recording capacity that meets the external record medium record recording medium easily.Like this, make the operator when the programme information with recording medium records outside recording medium, the quality that needn't carry out image information that programme information is comprised is transformed into the processing of the quality that the operator wishes and does the processing of compression with the compression ratio of the recording capacity that meets the external record medium.Therefore, can shorten the time that the programme information of recording medium is recorded the processing needs of external record medium, can further improve convenience the operator.
Feature of the present invention is again: the programme information that described tuner pack portion receives is during with the voice-frequency-multichannel multiple connection programme information of broadcasting after the multiple connection of multiple sound information, described control part make voice-frequency-multichannel multiple connection programme information by each audio information recording in recording medium.
According to the present invention, the programme information that tuner pack portion receives is during with the voice-frequency-multichannel multiple connection programme information of broadcasting after the multiple connection of multiple sound information, and control part is recorded in voice-frequency-multichannel multiple connection programme information and records medium by each acoustic information (for example each is based on multilingual acoustic information).Therefore, when the operator listens to the voice-frequency-multichannel multiple connection programme information of recording medium, needn't carry out the operation that a kind of language from multilingual switches to another kind of language, only select the acoustic information of the language of wishing just can listen to the voice-frequency-multichannel multiple connection programme information of the acoustic information of the language that comprises hope easily.
When voice-frequency-multichannel multiple connection programme information is recorded magnetic recording medium and optical recording media, the operator needn't preestablish the acoustic information of the language that records the external record medium, and the acoustic information of the language of only select wishing just can be easily records the recording medium of outside with the voice-frequency-multichannel multiple connection programme information of acoustic information that comprises the language of hope.
Feature of the present invention is again: also comprise integrated management and belong to the different a plurality of programme informations of described same programme information and image compression rate and the information management editorial office of voice-frequency-multichannel multiple connection programme information.
According to the present invention, belong to described same programme information and different a plurality of programme informations and the voice-frequency-multichannel multiple connection programme informations of image compression rate by the integrated management of information management editorial office, so that it is recorded recording medium.Therefore, during programme information that output is wished and when carrying out the programme information editing operating, can be more convenient and promptly extract the programme information and the voice-frequency-multichannel multiple connection programme information of wishing from a plurality of programme informations and the voice-frequency-multichannel multiple connection programme information of recording medium.Like this, the convenience to the operator is improved.
Feature of the present invention is again: described control part makes the programme information of described information management editorial office integrated management and at least one side in the voice-frequency-multichannel multiple connection programme information, be presented at can the output device of display message on.
According to the present invention, control part is presented on the output device of energy display message the programme information of information management editorial office integrated management and at least one side in the voice-frequency-multichannel multiple connection programme information.Therefore, when watching at least one side in the programme information of recording medium and the voice-frequency-multichannel multiple connection programme information and when making it record outside recording medium, the operator can be by seeing programme information that Information Selection that output device shows wishes and at least one side in the voice-frequency-multichannel multiple connection programme information clearly.Like this, the convenience to the operator is improved.
Feature of the present invention is again: but described recording medium has the 1st recording medium and the 2nd recording medium of recorded program information;
The programme information of many channels that described tuner pack portion is received records the 1st recording medium, and when described control part is specified the programme information of wishing at described operating portion, make the programme information that is operated portion's appointment in the programme information of the 1st recording medium record the 2nd recording medium.
According to the present invention, but recording medium has the 1st recording medium and the 2nd recording medium of recorded program information.The programme information of many channels that tuner pack portion is received records the 1st recording medium, and when control part is specified the programme information of wishing at described operating portion, make the programme information that is operated portion's appointment in the programme information of the 1st recording medium record the 2nd recording medium.After the 1st recording medium of whole programme informations that the programme information placeholder record of hope is received to record tuner pack portion, it is saved in 2nd recording medium different with the 1st recording medium, even thereby owing to the 1st recording medium fault and operator's mistake are lost the programme information of the 1st recording medium, the programme information that also can prevent loss and wish.
Feature of the present invention is again: also comprise
Programme information to the 1st recording medium is deciphered, and the decoder portion of output decoding information;
Extract the information treatment part of at least one side acoustic information and the image information from the decoding information of decoder portion output;
With identifying operation person's identifying information, the acoustic information of information treatment part extraction and at least one side in the image information, retrieve the retrieving information of the retrieval key that programme information uses as the expression operator, and produce the related information generating unit that the decoding information that this retrieving information and decoder portion are exported has the related information of incidence relation; And
The related information that the related information generating unit produces is encoded, and the encoder portion of output encoder related information,
Described control part makes the coding related information of encoder portion output, records the 2nd recording medium.
According to the present invention, decoder portion is with the programme information decoding of the 1st recording medium, and the information after the output decoding.Information treatment part is from the decoding information extraction acoustic information of decoder portion output and at least one side the image information.Acoustic information that the related information generating unit is extracted identifying operation person's identifying information, information treatment part and at least one side in the image information retrieve the retrieving information of the retrieval key that programme information uses and produce the related information that the decoding information that this retrieving information and decoder portion are exported has incidence relation as the expression operator.The related information that encoder portion produces the related information generating unit is encoded and the encoder portion of output encoder related information.Control part makes the coding related information of encoder portion output record the 2nd recording medium.
Behind the related information coding that identifying information and the decoding information that makes as retrieving information is had incidence relation, when recording the 2nd recording medium, even if the operator is a plurality of, also can discern the operator, rapidly to operator's prompting and each operator's program information corresponding according to identifying information as retrieving information.Therefore, the more convenient and programme information that promptly watch of operator from the program selection of prompting.Like this, can make the operator watch the programme information of hope immediately, improve convenience the operator.
Behind the related information coding that makes as the relevant relation of information band after the identifying information of retrieving information and the decoding, when recording the 2nd recording medium, by the operator being pointed out acoustic information or image information as the retrieving information related with decoding information, the operator listens to the acoustic information of prompting or sees the image information of prompting clearly, thereby can be than the programme information that is easier to and promptly selects to wish.Therefore, the operator can watch the programme information of for example wishing immediately, can improve the convenience to the operator.
Feature of the present invention is again: described information treatment part is divided into a plurality of decoding informations with decoding information,
Described image information formation comprises the information for still picture of representing rest image,
Described information treatment part extracts a plurality of information for still picture from decoding information at interval by preset time, and the time interval during simultaneously also by the extraction information for still picture is divided decoding information,
Each information for still picture that described related information generating unit is extracted information treatment part is as retrieving information, and produces the related information that makes this retrieving information and each decoding information of information treatment part division have incidence relation respectively.
According to the present invention, the image information formation comprises the information for still picture of representing rest image.Information treatment part extracts a plurality of information for still picture from decoding information at interval by preset time, and the time interval during simultaneously also by the extraction information for still picture is divided decoding information.Each information for still picture that the related information generating unit is extracted information treatment part is as retrieving information, and produces the related information that makes this retrieving information and each decoding information of information treatment part division have incidence relation respectively.After this related information is encoded by encoder portion, the output encoder related information.The control part related information of will encoding records the 2nd recording medium.
By read a plurality of information for still picture from the coding related information of the 2nd recording medium as the retrieving information related with each decoding information, to operator prompting, the operator can select the information for still picture of the programme information correspondence of the part that hope watches immediately from the information for still picture of prompting.Therefore, can be than being easier to and immediately watching.Like this, the convenience to the operator is improved very much.
Feature of the present invention is again: control part judges whether that the acoustic information from a plurality of acoustic informations switches to another acoustic information different with a described acoustic information,
Described information treatment part is judged as when a described acoustic information switches to described another acoustic information at control part, extracts information for still picture from decoding information, also divides decoding information simultaneously.
According to the present invention, control part judges whether that the acoustic information (for example stereo) from a plurality of acoustic informations switches to another acoustic information (for example single-pass say) different with a described acoustic information.Information treatment part is judged as when an acoustic information switches to described another acoustic information at control part, extracts information for still picture from decoding information, also divides decoding information simultaneously.The information for still picture that the related information generating unit is extracted information treatment part is as retrieving information, produces the related related information of decoding information that makes this retrieving information and information treatment part division.Encoder portion is with this related information coding, and the output encoder related information.The control part related information of will encoding records the 2nd recording medium.
During the output programme information, from the coding related information of the 2nd recording medium read as the retrieving information related and control part with decoding information be judged as when an acoustic information switches to described another acoustic information, obtain information for still picture, the operator is pointed out.Thereby the operator can be immediately selects to wish the pairing information for still picture of programme information of the part of watching from the information for still picture of prompting.Switch to the programme information of the time point output function person selection of another acoustic information since an acoustic information.
Therefore, can prevent to cause the operator is difficult to grasp the not proper of programme information content from output sound information part (for example part midway of lines) output programme information midway.And, can be than being easier to and immediately watching the information for still picture program information corresponding of selecting with the operator (being specially the programme information of the part that operator hope itself is watched in the programme information).Thereby, the convenience to the operator is improved very much.
Feature of the present invention is again: described related information is that information for still picture that information treatment part is extracted is as retrieving information, and the decoding information that makes this retrieving information and the output of decoder portion has the information of incidence relation, described operating portion regulation makes information for still picture and decoding information have the sum of the related information of incidence relation
Described control part is according to the sum of the described related information of described operating portion regulation, decision whether with described information for still picture as having the retrieving information of incidence relation with decoding information.
According to the present invention, related information is a information for still picture that information treatment part is extracted as retrieving information and the decoding information that makes this retrieving information and export with decoder portion has the information of incidence relation.The operating portion regulation makes information for still picture and decoding information have the sum of the related information of incidence relation.Control part according to the sum decision of the described related information of operating portion regulation whether with described information for still picture as having the retrieving information of incidence relation with decoding information.
For example the sum of the related information of the 2nd recording medium is less than the sum of the related information of operating portion regulation, then with information for still picture as retrieving information; The sum of the related information of the 2nd recording medium is more than or equal to the sum of the related information of operating portion regulation, then with amount of information less than the information (for example character information) of the amount of information of information for still picture as retrieving information.
As indicated above, by whether the retrieving information of related information being taken as information for still picture, can suppress the amount of information increase of the retrieving information related with decoding information according to the sum decision of the described associated data of operating portion regulation.Therefore, the recording capacity that records the related information of the 2nd recording medium behind the coding can be suppressed to minimum needs the limit, and the recording capacity that can prevent the 2nd recording medium is not enough and that the programme information that should write down etc. takes place to write down is not proper.Like this, the idle capacity of the 2nd recording medium is guaranteed, can effectively utilizes the 2nd recording medium.
Feature of the present invention is again: described control part detects the idle capacity of described the 2nd recording medium, and according to detected idle capacity control related information generating unit, make its with at least one side in identifying information, acoustic information and the information for still picture as retrieving information, produce related information.
According to the present invention, control part detects the idle capacity of described the 2nd recording medium.Control part is according to detected idle capacity control related information generating unit, make its with at least one side in identifying information, acoustic information and the information for still picture as retrieving information, produce related information.The related information generating unit is under the smaller situation of the idle capacity of detected the 2nd recording medium of control part, and the information that amount of information is smaller (for example identifying information) produces related information as retrieving information.The related information generating unit is under the bigger situation of the idle capacity of detected the 2nd recording medium of control part, and the information that amount of information is bigger (for example information for still picture) produces related information as retrieving information.
As indicated above, by according to the idle capacity appropriate change of the 2nd recording medium information, can effectively utilize the idle capacity of the 2nd recording medium as retrieving information.
Description of drawings
From following detailed description and the further clear and definite purpose of the present invention of accompanying drawing meeting, characteristic and advantage.
Fig. 1 is the block diagram of composition that the receiving system of embodiment of the present invention 1 is shown.
Fig. 2 is the block diagram of composition that the receiving system of embodiment of the present invention 2 is shown.
Fig. 3 is the block diagram of composition that the receiving system of embodiment of the present invention 3 is shown.
Fig. 4 is the block diagram of composition that the receiving system of embodiment of the present invention 4 is shown.
Fig. 5 is the block diagram of composition that the information recording/outputting apparatus of an embodiment of the present invention is shown.
Fig. 6 illustrates the flow chart of the treatment step of the running of recording/output apparatus for information about.
Fig. 7 is the figure of amount of information that the programme information of the channel that receives same programme information and each channel is shown
Fig. 8 is the figure that the voice-frequency-multichannel multiple connection programme information that the channel that receives voice-frequency-multichannel multiple connection programme information and every kind of language receive is shown.
Fig. 9 is the figure that the composition example of integrated management information is shown.
Figure 10 is the figure that the demonstration example of integrated management information is shown.
Embodiment
Below, describe better embodiment of the present invention with reference to the accompanying drawings in detail.
Below, illustrate and implement a plurality of execution modes that the present invention uses.In the explanation hereinafter, to anticipation mode in the corresponding identical reference number of part mark of the item that illustrates, omit repeat specification sometimes.When only form a part of being described, the other parts of composition are identical with the mode of explanation in advance.
Execution mode 1
Fig. 1 is the block diagram of composition that the receiving system 1 of embodiment of the present invention 1 is shown.The part of receiving system 1 comprises tuner pack portion 3 and control part 4.Tuner pack portion 3 comprises the 1st signal processing part 4 and the 2nd signal processing part 5.
The 1st signal processing part 4 is by integrated circuit (Integrated Circuit; Abbreviate IC as) form, comprise band pass filter (Band Pass Filter; Abbreviate BPF as) portion 11, low noise amplifier (Low NoiseAmplifier: abbreviate LNA as) 12, distributor 13, the 1st local oscillator 14a, the 2nd local oscillator 14b, the 3rd local oscillator 14c, the 4th local oscillator 14d, the 1st 15a of frequency mixer portion, the 2nd 15b of frequency mixer portion, the 3rd 15c of frequency mixer portion, the 4th 15d of frequency mixer portion, the 1st automatic gain control (Automatic Gain Control: abbreviate AGC as) 16a of portion, the 16b of 2AGC portion, the 16c of 3AGC portion, the 16d of 4AGC portion, the 1st low pass filter (Low Pass Filter: the abbreviate LPF as) 17a of portion, the 17b of 2LPF portion, the 17c of 3LPF portion, and the 17d of 4LPF portion.
The 2nd signal processing part 5 is made up of IC, comprises the 1st mould-number (Analog/Digital; Abbreviate A/D as) converter 21a, the 2nd analogue-digital converter 21b, the 3rd analogue-digital converter 21c, the 4th analogue-digital converter 21d, the 1st 22a of digital filter portion, the 2nd 22b of digital filter portion, the 3rd 22c of digital filter portion, the 4th 22d of digital filter portion, the 1st Orthodoxy Frequency Division Multiplex (Orthogonal FrequencyDivision Multiplexing: abbreviate OFDM as) demodulation section (hereinafter being sometimes referred to as " demodulation section ") 23a, the 2nd demodulation section 23b, the 3rd demodulation section 23c, and the 4th demodulation section 23d.
The tuner pack portion 3 of present embodiment comprises the 1st 7a of tuner portion, the 2nd 7b of tuner portion, the 3rd 7c of tuner portion and the 4th 7d of tuner portion.The 1st 7a of tuner portion comprises described the 1st local oscillator 14a, the 1st 15a of frequency mixer portion, the 16a of 1AGC portion, the 17a of 1LPF portion, the 1st analogue-digital converter 21a, the 1st 22a of digital filter portion and the 1st demodulation section 23a.The 2nd 7b of tuner portion comprises described the 2nd local oscillator 14b, the 2nd 15b of frequency mixer portion, the 16b of 2AGC portion, the 17b of 2LPF portion, the 2nd analogue-digital converter 21b, the 2nd 22b of digital filter portion and the 2nd demodulation section 23b.
The 3rd 7c of tuner portion comprises described the 3rd local oscillator 14c, the 3rd 15c of frequency mixer portion, the 16c of 3AGC portion, the 17c of 3LPF portion, the 3rd analogue-digital converter 21c, the 3rd 22c of digital filter portion and the 3rd demodulation section 23c.The 4th 7d of tuner portion comprises described the 4th local oscillator 14d, the 4th 15d of frequency mixer portion, the 16d of 4AGC portion, the 17d of 4LPF portion, the 4th analogue-digital converter 21d, the 4th 22d of digital filter portion and the 4th demodulation section 23d.
The composition of the 1st～the 4th 7a～7d of tuner portion is identical, thereby present embodiment only illustrates the 1st 7a of tuner portion, the explanation of omitting the 2nd～the 4th 7b～7d of tuner portion.In the following explanation, when being referred to as the 1st～the 4th 7a～7d of tuner portion and constituting each parts of each 7a～7d of tuner portion, omit word " a ", " b ", " c " and " d " that adds in " the 1st ", " the 2nd ", " the 3rd " and " the 4th " and the reference number sometimes.
In the present embodiment, the 1st filter section is equivalent to BPF portion 11.Amplifier is equivalent to LNA12.Control portion of gain is equivalent to AGC portion 16.The 2nd filter section is equivalent to LPF17.Converter is equivalent to analogue-digital converter 21.The 3rd filter section is equivalent to digital filter portion 22.Demodulation section is attended the OFDM demodulation section.
Antenna 2 is connected to the BPF portion 11 of the 1st signal processing part 4, and 11 in BPF portion connects LNA12.LNA12 is connected to distributor 13.Distributor 13 and local oscillator 14 are connected to frequency mixer portion 15.Frequency mixer portion 15 is connected to AGC portion 16, and 16 in AGC portion connects LPF portion 17.LPF portion 17 is connected to the analogue-digital converter 21 of the 2nd signal processing part 5.Analogue-digital converter 21 is connected to digital filter portion 22, and 22 in digital filter portion connects demodulation section 23.Demodulation section 23 is connected to restituted signal output terminal part 25.Also demodulation section 23 is connected to local oscillator 14, AGC portion 16 and analogue-digital converter 21.Control part 6 connects the 1st signal processing part 4 and the 2nd signal processing part 5.
Antenna 2 is caught for example a plurality of broadcast singals of broadcasting satellite (Broadcasting Satellite: abbreviate BS as), communication satellite (Communication Satellite: abbreviate CS as) and ground-plane antenna transmission.The programme signal that comprises the program that relates to many channels in a plurality of broadcast singals.Programme signal comprises expression and contains the signal of programme information of the image information of represent programme content and acoustic information and expression and the broadcasting channel list is provided, is broadcasting and the programme content of be scheduled to transmission is read and is convenient to retrieve and preengage the signal of electronic program guides (Electronic Program Guide: abbreviate EPG as) information of function of the program of hope.
The programme signal of the non-required frequency of programme signal filtering of the program that relates to many channels that BPF portion 11 comprises from a plurality of broadcast singals that antenna 2 is caught is passed through the programme signal of the 1st predetermined frequency range, and supplies with LNA12.After the programme signal that LNA12 supplies with BPF portion 11 is amplified, supply with distributor 13.LNA12 is set,, also is suppressed at the deterioration of the signal to noise ratio that the downlink side of LNA12 takes place even be used for weak output signal.Distributor 13 distributes the programme signal of LNA12 supply to the frequency mixer portion 15 of tuner portion 7 by each channel.
Local oscillator 14 produces the oscillator signal of the predetermined oscillation frequency of the frequency that meets the programme signal of supplying with frequency mixer 15 according to the control signal of setting forth later from demodulation section 23 supplies, supplies with frequency mixer portion 15.The oscillator signal that programme signal that 15 pairs of distributors of frequency mixer portion 13 are supplied with and local oscillator 14 are supplied with carries out mixing (be specially and carry out multiplying), thereby produces the frequency mixed frequency signal different with programme signal, supplies with AGC portion 16.
The control signal that AGC portion 16 supplies with according to the demodulation section of setting forth later 23 is controlled to the magnification ratio (i.e. gain) of amplifier variable, also keeps constant even the mixed frequency signal level that the mixed frequency signal level frequency mixer portion 15 of output is supplied with changes.AGC portion 16 supplies with LPF portion 17 with the mixed frequency signal of output.LPF portion 17 passes through the mixed frequency signal of the 2nd frequency range of the frequency range that is lower than or is lower than predetermined cut-off frequency, and supplies with the analogue-digital converter 21 of the 2nd signal processing part 5 from the mixed frequency signal of the non-required frequency of mixed frequency signal filtering of AGC portion 16 supplies.
The control signal that analogue-digital converter 21 is supplied with according to the demodulation section of setting forth later 23 after the mixed frequency signal that LPF portion 17 is supplied with is transformed into digital signal from analog signal, is supplied with digital filter portion 22 with digital signal.Utilize finite impulse response (FIR) (Finite Impulse Response: abbreviate FIR as) mode filter or infinite impulse response (Infinite Impulse Response: abbreviate IIR as) mode filter, realize digital filter portion 22.Digital filter portion 22 passes through the digital signal of the 3rd predetermined frequency range from the digital signal of the non-required frequency of digital signal filtering of analogue-digital converter 21 supplies, and supplies with demodulation section 23.Digital filter portion 22 filterings the 1st signal processing part 4 is the noise of filtering fully.
After the digital signal that 23 pairs of digital filter portions of demodulation section 22 supply with is carried out demodulation process, the output programme signal.From the programme signal of restituted signal output terminal part 25 output demodulation sections 23 outputs, supply with the 1st encoder portion 115 of the information recording/outputting apparatus 100 of for example setting forth later.
Demodulation section 23 is suitable for generation can be transformed into the control signal that the oscillator signal of the frequency of oscillation of digital signal is used to programme signal at demodulation section 23, supplies with local oscillator 14.Demodulation section 23 will be adjusted the control signal that the signal level in analog signal district uses and supply with AGC portion 16, be the prearranged signal level so that make the signal level that is sent to analogue-digital converter 21.Demodulation section 23 will be corresponding with the demodulation mode of suitable demodulation section 23 digital signal transformation directive and adjust the control signal that the signal level in digital signal district is used, supply with analogue-digital converter 21.
Control part 6 utilizations comprise for example central arithmetic processing apparatus (Central Processing Unit: abbreviate CPU as) and are realized, control the 1st signal processing part 4 and the 2nd signal processing part 5 of tuner pack portion 3 according to the control program of its storage inside.Say that further control part 6 Comprehensive Control comprise described local oscillator 14, frequency mixer 15, AGC portion 16, LPF portion 14, analogue-digital converter 21, digital filter portion 22 and and tuner portion 7 and the BPF portion 11 and the LNA12 of demodulation section 23.
Control part 6 makes expression the running signal of which tuner portion 7 runnings among the 1st～the 4th 7a～7d of tuner portion or represents the running stop signal which tuner portion 7 decommissions, and supplies with the 1st and the 2nd signal processing part 4,5.1st, the 2nd signal processing part 4,5 operates the tuner portion 7 among the 1st～the 4th 7a～7d of tuner portion according to described running signal when control part 6 is supplied with the running signal.1st, the 2nd signal processing part decommissions a tuner portion 7 among the 1st～the 4th 7a～7d of tuner portion according to described running stop signal when control part 6 is supplied with the running stop signal.
Control part 6 can be transformed into the passband width that makes BPF portion 11 from the bandwidth change instruction of the passband width of unshowned input part input and supply with BPF portion 11.Can change the passband width of BPF portion 11 according to the described bandwidth change instruction that control part 6 is supplied with.
Control part 6 can be modified to the figure signal level (being specially the sampling frequency of analogue-digital converter 21) that makes analogue-digital converter 21 from the figure signal level change directive of the sampling frequency of unshowned input part input, supplies with analogue-digital converter 21.Can change the figure signal level of analogue-digital converter 21 according to the described figure signal level change directive of control part 5 supplies.
Control part 6 can be supplied with digital filter portion 22 with the signal level (being specially the frequency range by the signal of digital filter portion 22) of passing through of digital filter portion 22 is modified to from the frequency range change directive of the frequency range of unshowned input part input.Can change the signal level of passing through of digital filter portion 22 according to the described frequency range change directive of control part 6 supplies.
Control part 6 the passband width that makes BPF11 for smaller or equal to the frequency bandwidth of 2 times of minimum receive frequencies of programme signal and smaller or equal to 1/2 programme signal the bandwidth control signal used of the medium and small side's of the frequency bandwidth of high receive frequency frequency bandwidth supply with BPF portion 11.The described bandwidth control signal that BPF portion 11 supplies with according to control part, making passband width is smaller or equal to the frequency bandwidth of 2 times of minimum receive frequencies of programme signal with smaller or equal to the 1/2 programme signal medium and small side's of the frequency bandwidth of high receive frequency frequency bandwidth.
As mentioned above, according to embodiment of the present invention 1, owing to utilize semiconductor integrated circuit to constitute the 1st signal processing part 4 and the 2nd signal processing part 5, be arranged side by side like that with the composition of a plurality of tuner portion 7 of metal shell shielding with above-mentioned prior art and compare, the circuit scale of the receiving system 1 that comprises the 1st and the 2nd signal processing part 4,5 is reduced.Owing to the distributor 13 by the 1st signal processing part of forming with IC 4 distributes the programme signal of receiving, can reduce the signal transmission attenuation of the 1st signal processing part 4 again.
Therefore, the impedance of the 1st signal processing part 4 is kept in balance.Like this, different with prior art, can make to be provided for compensating in the compensating circuit that distributes loss, the parts constant absolute values deviation of individual component reduces.
By reducing the circuit scale of receiving system 1, the BPF portion 11 that can make the programme signal that the input broadcasting station sends is to little than in the above-mentioned prior art of the distance of the signal path of demodulation section 23.Thereby, the loss that can make signal path little than in the above-mentioned prior art, the level deviation of the signal that can also reduce on signal path, to transmit simultaneously, the transmission of the signal that can make comparisons stable.
Owing to can reduce the distance of described signal path, can reduce the scale of external noise to the intrusion path of the 1st and the 2nd signal processing part 4,5 again, as far as possible.Therefore, can reduce the outside invasion noise, prevent that the signal that transmits on the signal path from decaying because of noise, thereby can improve signal receiving sensitivity.
Above-mentioned prior art formation is provided with individual high-frequency unit to improve signal receiving sensitivity, and in contrast, the present invention needn't be provided with individual high-frequency unit for improving signal receiving sensitivity.Therefore, compared with the prior art, the number of components of receiving system can be reduced, manufacturing cost and power consumption can be reduced.
According to embodiment of the present invention 1, then constitute at least one side in the raising signal level of the figure signal level of the passband width can change BPF11, analogue-digital converter 21 and digital filter portion 22.Particularly, the scheduled transmission standard that meets control part 6 and provide (8VSB (VestigialSideband Modulation: the vestigial sideband modulation) described passband width, the figure signal level of system and COFDM (Coded Orthogonal FrequencyDivision Multiplexing: Orthodoxy Frequency Division Multiplex) make) and pass through signal level for example can be provided respectively formation.As the passband width of BPF portion 11, for example be 400 megahertzes.
As indicated above, can change respectively and meet the passband width that transmits standard, figure signal level and by signal level, therefore can reduce the level deviation of the signal that transmits in each unit of the 1st and the 2nd signal processing part 4,5, it is stable to seek signal level.Present embodiment can obtain about 80 decibels signal level by mould one A/D converter 21 and digital filter portion 22 are set.
As indicated above, can seek signal level and stablize, so BPF portion 11, LNA12, LPF portion 17, mould one A/D converter 21 and digital filter portion 22 needn't make signal level stablize the predetermined signal processing of usefulness, can alleviate the burden of described signal processing.Thereby, can reduce the power consumption of BPF portion 11, LNA12, LPF portion 17, mould one A/D converter 21 and digital filter portion 22 as far as possible.
According to embodiment of the present invention 1, control part 6 control BPF portions 11 then, the passband width that makes BPF portion 11 is for smaller or equal to the frequency bandwidth of 2 times of minimum receive frequencies of programme signal with smaller or equal to the 1/2 programme signal medium and small side's of the frequency bandwidth of high receive frequency frequency bandwidth.
When receiving system 1 receives the programme signal of a plurality of frequency ranges, because the signal level of each frequency need utilize LNA12, BPF portion 11, LPF portion 17 and digital filter portion 22 to make the processing of its amplification or decay because of the differences such as surrounding environment of receiving system 1.
When the difference of the highest receive frequency of programme signal and the minimum receive frequency of programme signal is big and when receiving programme signal than multiband simultaneously, sometimes can not utilize LNA12, BPF portion 11, LPF portion 17 and digital filter portion 22 that the program level of reception is amplified or decay into the prearranged signals level, thereby the dynamic range of receiving system 1 reduces.
Therefore, in the present embodiment, be controlled to be smaller or equal to the frequency bandwidth of 2 times of minimum receive frequencies of programme signal with smaller or equal to the 1/2 programme signal medium and small side's of the frequency bandwidth of high receive frequency frequency bandwidth by passband width, can prevent that the signal that the difference of the highest receive frequency and minimum receive frequency is big is sent to each unit of the downlink side that is located at BPF portion 11 BPF portion 11.
Like this, can make the dynamic range of receiving system 1 reduce to be inhibited.Therefore; LNA12, BPF portion 11, LPF portion 17 and digital filter portion 22 needn't make the level burden of described programme signal or the processing of decay; the burden of the described processing of LNA12, BPF portion 11, LPF portion 17 and digital filter portion 22 can be alleviated, thereby the power consumption of LNA12, BPF portion 11, LPF portion 17 and digital filter portion 22 can be reduced as far as possible.
Execution mode 2
Fig. 2 is the block diagram of composition that the receiving system 30 of embodiment of the present invention 2 is shown.The composition of the receiving system 30 of present embodiment and the receiving system 1 of execution mode 1 similar, thereby different parts only is described, corresponding part then marks identical label, omits explanation.
The composition of receiving system 30 comprises tuner pack portion 31 and control part 6.Tuner pack portion 31 comprises the 1st signal processing part 4 and the 2nd signal processing part 32.The 2nd signal processing part 32 comprises the 1st～the 4th analogue-digital converter 21a～21d, the 1st～the 4th 22a～22d of digital filter portion, the 1st digital signal processing device (Digital Signal Processor; Abbreviate DSP as) 35a, 2DSP35b, 3DSP35c and 4DSP35d.
The tuner pack portion 31 of present embodiment comprises the 1st～the 4th 8a～8d of tuner portion.The 1st 8a of tuner portion comprises described the 1st local oscillator 14a, the 1st 15a of frequency mixer portion, the 16a of 1AGC portion, the 17a of 1LPF portion, the 1st analogue-digital converter 21a, the 1st 22a of digital filter portion and 1DSP 35a.The 2nd 8b of tuner portion comprises described the 2nd local oscillator 14b, the 2nd 15b of frequency mixer portion, the 16b of 2AGC portion, the 17b of 2LPF portion, the 2nd analogue-digital converter 21b, the 2nd 22b of digital filter portion and the 2nd DSP 35b.
The 3rd 8c of tuner portion comprises described the 3rd local oscillator 14c, the 3rd 15c of frequency mixer portion, the 16c of 3AGC portion, the 17c of 3LPF portion, the 3rd analogue-digital converter 21c, the 3rd 22c of digital filter portion and 3DSP 35c.The 4th 8d of tuner portion comprises described the 4th local oscillator 14d, the 4th 15d of frequency mixer portion, the 16d of 4AGC portion, the 17d of 4LPF portion, the 4th analogue-digital converter 21d, the 4th 22d of digital filter portion and 4DSP35d.In the explanation hereinafter, when being referred to as the 1st～the 4th 8a～8d of tuner portion and constituting each parts of each 8a～8d of tuner portion, omit word " a ", " b ", " c " and " d " that adds in " the 1st ", " the 2nd ", " the 3rd " and " the 4th " and the reference number sometimes.
In the present embodiment, demodulation section is equivalent to DSP35.
The digital filter portion 22 of the 2nd signal processing part 32 is connected to DSP35, and DSP35 then connects restituted signal output terminal part 25.Also DSP35 is connected to local oscillator 14, AGC portion 16 and analogue-digital converter 21.Control part 6 connects the 1st and the 2nd signal processing part 4,32, also connects DSP35 simultaneously.Digital filter portion 22 passes through the digital signal of the 3rd predetermined frequency range from the digital signal of the non-required frequency of digital signal filtering of analogue-digital converter 21 supplies, and supplies with DSP35.After the digital signal that DSP35 supplies with digital filter portion 22 according to predetermined demodulation process is carried out demodulation process, the output programme signal.From the programme signal of restituted signal output terminal part 25 output DSP35 outputs, supply with the 1st encoder portion 115 of the information recording/outputting apparatus 100 of for example setting forth later.
DSP35 is suitable for generation can be transformed into the control signal that the oscillator signal of the frequency of oscillation of digital signal is used to programme signal at DSP35, supplies with local oscillator 14.DSP35 will adjust the control signal that the signal level in analog signal district uses and supply with AGC portion 16, and to be sent to analogue-digital converter 21 sub-signal level be the prearranged signal level so that make.DSP35 will be corresponding with the demodulation mode of suitable demodulation section 23 digital signal transformation directive and adjust the control signal that the signal level in digital signal district uses and supply with analogue-digital converter 21.
Control part 6 switches to the program switching command of another demodulation process and rewrites the program rewriting of the demodulation process of record instruction in advance among the DSP35 being scheduled to demodulation process, supplies with DSP35.Control part 6 also will be represented the demodulation process data supply DSP35 of the predetermined demodulation process that DSP35 carries out.The program switching command that DSP35 supplies with according to control part 6 switches to another demodulation process from a demodulation process.Program rewriting instruction and demodulation process data that DSP35 also supplies with according to control part 6 are rewritten into the demodulation process that control part 6 is supplied with the demodulation process that writes down among the DSP35.
As mentioned above, according to embodiment of the present invention 2, then utilize DSP35 to constitute demodulating unit.DSP35 can switch to another demodulation process with a demodulation process more easily according to the predetermined instruction (be specially and will be scheduled to the program switching command that demodulation process switches to another demodulation process) of control part 6 supplies.DSP35 can also rewrite the demodulation process that writes down in advance among the DSP35 than instruction that is easier to supply with according to control part 6 (being specially the program rewriting instruction that the demodulation process that will write down in advance among the DSP35 is rewritten into another demodulation process) and demodulation process data.
Therefore, receiving system 30 can be than being easier to according to meeting the signal that the demodulation process demodulation of transmitting standard is input to DSP35 by changing the demodulation process that writes down in advance among the DSP35 according to the transmission standard.Owing to needn't the special demodulating unit be set respectively according to the transmission standard in the receiving system 30, when being set, the special demodulating unit compares, can reduce the manufacturing cost of receiving system 30.
Can seek to eliminate for example various improvement such as vulnerability of demodulation process by the demodulation process that writes down in advance among the change DSP35.
Execution mode 3
Fig. 3 is the block diagram of composition that the receiving system 40 of embodiment of the present invention 3 is shown.The composition of the receiving system 40 of present embodiment and the receiving system of execution mode 1 and 21,30 similar, thereby different parts only is described, corresponding part then marks identical reference number, omits explanation.
The composition of receiving system 40 comprises tuner pack portion 41 and control part 6.Tuner pack portion 41 comprises the 1st signal processing part 42 and the 2nd signal processing part 43.The 1st signal processing part 42 comprises BPF portion 11, LNA12, distributor the 13, the 1st～the 4th local oscillator 14a～14d, the 1st～the 8th 45a～45h of frequency mixer portion, the 1st～the 4th 40a～46d of phse conversion portion and the 1st～the 47a～47h of 8AGC portion.The 2nd signal processing part 43 comprises the 1st～the 8th delta sigma mould-number (abbreviating Δ ∑ A/D as) converter 48a～48h, the 1st～the 8th 49a～49h of digital filter portion and the 1st～the 4DSP50a～50d.
The tuner pack portion 41 of present embodiment comprises the 1st～the 4th 9a～9d of tuner portion.The 1st 9a of tuner portion comprises described the 1st local oscillator 14a, the 1st and the 2nd 45a of frequency mixer portion and 45b, the 1st 46a of phse conversion portion, the 1st and the 47a of 2AGC portion and 47b, the 1st and the 2nd delta sigma analogue- digital converter 48a and 48b, the 1st and the 2nd 49a of digital filter portion and 49b and 1DSP50a.The 2nd 9b of tuner portion comprises described the 2nd local oscillator 14b, the 3rd and the 4th 45c of frequency mixer portion and 45d, the 2nd 46b of phse conversion portion, the 3rd and the 47c of 4AGC portion and 47d, the 3rd and the 4th delta sigma analogue- digital converter 48c and 48d, the 3rd and the 4th 49c of digital filter portion and 49d and 2DSP50b.
The 3rd 9c of tuner portion comprises described the 3rd local oscillator 14c, the 5th and the 6th 45e of frequency mixer portion and 45f, the 3rd 46c of phse conversion portion, the 5th and the 47e of 6AGC portion and 47f, the 5th and the 6th delta sigma analogue- digital converter 48e and 48f, the 5th and the 6th 49e of digital filter portion and 49f and 3DSP50c.The 4th 9d of tuner portion comprises described the 4th local oscillator 14d, the 7th and the 8th 45g of frequency mixer portion and 45h, the 4th 46d of phse conversion portion, the 7th and the 47g of 8AGC portion and 47h, the 7th and the 8th delta sigma analogue- digital converter 48g and 48h, the 7th and the 8th 49g of digital filter portion and 49h and 4DSP50d.
The composition of the 1st～the 4th 9a～9d of tuner portion is identical, thereby present embodiment only illustrates the 1st 9a of tuner portion, the explanation of omitting the 2nd～the 4th 9b～9d of tuner portion.In the explanation hereinafter, when being referred to as the 1st～the 4th 9a～9d of tuner portion and constituting each parts of each 9a～9d of tuner portion, omit word " a ", " b ", " c ", " d ", " e ", " f ", " g " and " h " that adds in " the 1st ", " the 2nd ", " the 3rd ", " the 4th ", " the 5th ", " the 6th ", " the 7th " and " the 8th " and the reference number sometimes.
In the present embodiment, control portion of gain is equivalent to AGC portion 47.Converter is equivalent to delta sigma analogue-digital converter 48.The 3rd filter section is equivalent to digital filter portion 49.Demodulation section is equivalent to DSP50.
The distributor 13 of the 1st signal processing part 42 is connected to the 1st and the 2nd 45a of frequency mixer portion, 45b.With the 1st local oscillator 45, be connected to the 1st 45a of frequency mixer portion and the 1st 46a of phse conversion portion.The 1st 45a of frequency mixer portion connects the 1st local oscillator 14a and the 47a of 1AGC portion, and the 2nd 45b of frequency mixer portion connects the 1st 46a of phse conversion portion and the 47b of 2AGC portion.
The 47a of 1AGC portion is connected to the 1st delta sigma analogue-digital converter 48a, and the 47b of 2AGC portion then connects the 2nd delta sigma analogue-digital converter 48b.The 1st delta sigma analogue-digital converter 48a connects the 1st 49a of digital filter portion, and the 2nd delta sigma analogue-digital converter 48b connects the 2nd 49b of digital filter portion.
The the 1st and the 2nd 49a of digital filter portion, 49b are connected to 1DSP50a.1DSP50a is connected to the 1st restituted signal output terminal part 25.Again 1DSP50a is connected to the 1st local oscillator 14a, the 1st and the 47a of 2AGC portion, 47b and the 1st and the 2nd delta sigma analogue-digital converter 48a, 48b.Control part 6 connects the 1st and the 2nd signal processing part 42,43, also connects 1DSP50a simultaneously.
Distributor 13 distributes the 1st and the 2nd 45a of frequency mixer portion, 45b by each channel, and supplies with the programme signal that LNA12 provides.The 1st local oscillator 14a produces the oscillator signal of predetermined oscillation frequency, supplies with the 1st 45a of frequency mixer portion and the 1st phse conversion portion 46.The 1st 45a of frequency mixer portion carries out mixing (be specially and carry out multiplying) by the oscillator signal that programme signal and the 1st local oscillator 14a to distributor 13 supplies supply with, and produces the frequency mixed frequency signal different with programme signal, supplies with the 47a of 1AGC portion.
The 1st 46a of phse conversion portion spends the phse conversion 90 of the oscillator signal that the 1st local oscillator 14a supplies with, and particularly, makes phase delay 90 degree, thereby will supply with the 2nd 45b of frequency mixer portion with the signal of former oscillator signal phase difference 90 degree.The 2nd 45b of frequency mixer portion carries out mixing (be specially and carry out multiplying) by programme signal and the 1st 46a of phse conversion portion signal supplied that distributor 13 is supplied with, produces the frequency mixed frequency signal different with programme signal, supplies with the 47b of 2AGC portion.
The control signal that the 47a of 1AGC portion supplies with according to the 1DSP50 that sets forth later is controlled to the magnification ratio (i.e. gain) of amplifier variable, even if the level of the mixed frequency signal that the 1st 45a of frequency mixer portion supplies with is changed, the mixed frequency signal level of output also is constant.The 47a of 1AGC portion supplies with the 1st delta sigma analogue-digital converter 48a with the mixed frequency signal of output.
The control signal that the 2nd Δ GC 47b of portion supplies with according to the 1DSP50 that sets forth later is controlled to the magnification ratio (i.e. gain) of amplifier variable, even if the level of the mixed frequency signal that the 2nd 45b of frequency mixer portion supplies with is changed, the mixed frequency signal level of output also is constant.The 47b of 2AGC portion supplies with the 2nd delta sigma analogue-digital converter 48b with the mixed frequency signal of output.
After the mixed frequency signal that the 1st delta sigma analogue-digital converter 48a supplies with the 47a of 1AGC portion with predetermined sampling frequency is taken a sample, be transformed into digital signal from analog signal, and digital signal is supplied with the 1st 49a of digital filter portion.After the mixed frequency signal that the 2nd delta sigma analogue-digital converter 48b supplies with the 47b of 2AGC portion with predetermined sampling frequency is taken a sample, be transformed into digital signal from analog signal, and digital signal is supplied with the 2nd 49b of digital filter portion.
The digital signal of the non-required frequency of digital signal filtering that the 1st 49a of digital filter portion supplies with from the 1st delta sigma analogue-digital converter 48a, and the digital signal of the 3rd predetermined frequency range is passed through, supply with 1DSP50a.The digital signal of the non-required frequency of digital signal filtering that the 2nd 49b of digital filter portion supplies with from the 2nd delta sigma analogue-digital converter 48b, and the digital signal of the 3rd predetermined frequency range is passed through, supply with 1DSP50a.
1DSP50a faces the digital signal of the 1st 49a of digital filter portion supply according to predetermined demodulation process decoding one and the digital signal of the 2nd 49b of digital filter portion supply compares, and one side is carried out demodulation process.Thereby, can comprise the programme signal of the programme information higher from 1DSP50a output than execution mode 1 and 2 quality.Export the programme signal of 1DSP50a output from the 1st restituted signal output terminal part 25a, supply with the 1st encoder portion 115 of for example described information recording/outputting apparatus 100.
1DSP50a is suitable for generation programme signal is transformed into and can supplies with the 1st local oscillator 14a in the control signal that the oscillator signal of the frequency of oscillation of the digital signal of 1DSP50a demodulation is used.The 1st
DSP50a will adjust the control signal that the signal level in analog signal district uses and supply with 1AGC portion 47, be the prearranged signals level so that make the signal level of transmitting among the 1st delta sigma analogue-digital converter 48a.1DSP50a will adjust the control signal that the signal level in analog signal district uses and supply with the 47b of 2AGC portion, be the prearranged signals level so that make the signal level of transmitting among the 2nd delta sigma analogue-digital converter 48b.
1DSP50a will be corresponding with the demodulation mode that is fit to 1DSP50a digital signal transformation directive and adjust the control signal that the signal level in digital signal district is used, supply with the 1st and the 2nd delta sigma analogue- digital converter 48a, 48b.
Control part 6 switches to the program switching command of another demodulation process and rewrites the program rewriting of the demodulation process of record instruction in advance among the 1DSP50a being scheduled to demodulation process, supplies with 1DSP50a.Control part 6 also will be represented the demodulation process data of the predetermined demodulation process that 1DSP50a carries out, and supply with 1DSP50a.The program switching command that 1DSP50a supplies with according to control part 6, the demodulation process from a plurality of demodulation process switches to another demodulation process.Program rewriting instruction and demodulation process data that 1DSP50a also supplies with according to control part 6, the demodulation process that 1DSP50a is write down is rewritten as the demodulation process that control part 6 is supplied with.
As mentioned above, according to embodiment of the present invention 3, delta sigma analogue-digital converter 48 is used as analogue-digital converter.Can be by using delta sigma analogue-digital converter 48, the mixed frequency signal of AGC portion 47 outputs of the 1st signal processing part 42 is transformed into digital signal accurately.In other words, be not subjected to The noise, can obtain high-precision digital signal from outside invasion.
Therefore, filtering outside invasion noise predetermined signal processing needn't high accuracy in BPF portion 11, LNA12 and the digital filter portion 49, can alleviate the burden of the described signal processing of BPF portion 11, LNA12 and digital filter portion 49.Like this, the power consumption of BPF portion 11, LNA12 and digital filter portion 49 is reduced as far as possible.
According to embodiment of the present invention 3, then frequency mixer portion 45 utilizes the Direct Conversion mode to become the mixed frequency signal of low frequency signal from the programme signal Direct Conversion of high-frequency signal.During without the Direct Conversion mode, need produce the oscillator signal of the frequency that is fit to delta sigma analogue-digital converter 48 by local oscillator 14, in frequency mixer portion 45 with this oscillator signal and programme signal mixing, thereby make the frequency translation of the programme signal of receiving become be fit to the frequency of delta sigma analogue-digital converter 48.This frequency conversion mode is also done frequency conversion to the signal of non-required frequency sometimes, with itself and programme signal mixing, thereby needs the signal of the non-required frequency of filtering.
In contrast, in the embodiment of the present invention 3, be directly converted to the mixed frequency signal of low frequency signal from the programme signal of high-frequency signal, thus the signal that can as far as possible suppress non-required frequency be subjected to frequency conversion and with the programme signal mixing.Like this, present embodiment since the signal that can suppress non-required frequency be subjected to frequency conversion and with the programme signal mixing, the filter cell that the signal of the described non-required frequency of filtering is used needn't be set.Therefore, compare, can reduce the component omission of receiving system, can also reduce power consumption simultaneously with the filter cell that the signal that the described non-required frequency of filtering is set is used.
Execution mode 4
Fig. 4 is the block diagram of composition that the receiving system 60 of embodiment of the present invention 4 is shown.The composition of the receiving system 60 of present embodiment and the receiving system 30 of execution mode 2 are similar, thereby different parts only is described, the corresponding identical reference number of part mark omits explanation.
The composition of receiving system 60 comprises tuner pack portion 61 and control part 6.Tuner pack portion 61 comprises the 1st signal processing part 62 and the 2nd signal processing part 63.The 1st signal processing part 62 comprises BPF portion 11, LNA12, distributor the 13, the 1st～the 4th local oscillator 14a～14d, the 1st～the 4th 15a～15d of frequency mixer portion, the 1st～the 16a～16d of 4AGC portion and the 1st～the 17a～17d of 4LPF portion, another local oscillator 65 and another frequency mixer portion 66.Tuner pack portion 61 comprises the 1st～the 4th 8a～8d of tuner portion.In the following explanation, when being referred to as the 1st～the 4th 8a～8d of tuner portion and constituting each parts of each 8a～8d of tuner portion, omit word " a ", " b ", " c " and " d " that adds in " the 1st ", " the 2nd ", " the 3rd " and " the 4th " and the reference number sometimes.
In the present embodiment, control portion of gain is equivalent to AGC portion 16.Demodulation section is equivalent to DSP35.
The LNA12 of the 1st signal processing part 62 is connected to another frequency mixer portion 66, and 66 in another frequency mixer portion connects another local oscillator 65 and distributor 13.Another local oscillator 65 is connected to another frequency mixer portion 66.Another local oscillator 65 and another frequency mixer portion 66 are configured in the upstream side of downlink side and the distributor 13 of LNA12.Distributor 13 is connected to the frequency mixer portion 15 of the tuner portion 8 of the downlink side that is configured in distributor 13.In the present embodiment, constitute described another frequency mixer portion 66, constitute described frequency mixer portion 15 by the passive frequency mixer circuit by the active mixer circuit.
After the programme signal that LNA12 supplies with BPF portion 11 is amplified, supply with another frequency mixer portion 66.The control signal that another local oscillator 65 is supplied with according to the DSP35 that sets forth later produces the oscillator signal of the predetermined oscillation frequency of the frequency that meets the programme signal of supplying with another frequency mixer portion 66, supplies with another frequency mixer portion 66.Another frequency mixer portion 66 carries out mixing (be specially and carry out multiplying) by the oscillator signal that programme signal and another local oscillator 65 of LNA12 supply are supplied with, and produces the frequency mixed frequency signal different with programme signal, supplies with distributor 13.
Distributor 13 distributes the mixed frequency signal of another frequency mixer portion 66 supplies by the frequency mixer portion 15 of each channel to each 8a～8d of tuner portion.The oscillator signal that frequency mixer portion 15 supplies with by mixed frequency signal that distributor 13 is supplied with and the described local oscillator 14 that is connected frequency mixer portion 15 carries out mixing (be specially and carry out multiplying), produce the different new mixed frequency signal of supplying with described distributor 13 of mixed frequency signal, supply with AGC portion 16.Identical in the signal processing of the downlink side of the AGC portion 16 of tuner portion 8 and the above-mentioned execution mode 1.
As mentioned above, according to embodiment of the present invention 4, then utilize another frequency mixer portion 66 of the upstream side of the downlink side be configured in BPF portion 11 and distributor 13 to carry out from programme signal to frequency conversion, further utilize the frequency mixer portion 15 of the downlink side that is configured in distributor 13 to carry out from mixed frequency signal to frequency conversion than the new mixed frequency signal of the frequency of the preset frequency of the more approaching suitable analogue-digital converter 21 of frequency of this mixed frequency signal than the mixed frequency signal of the frequency of the preset frequency of the more approaching suitable analogue-digital converter 21 of frequency of this programme signal.
Therefore, the frequency (being receive frequency) that can make the programme signal of reception is easily near the frequency that is fit to analogue-digital converter 21, thereby the signal that can will be fit to the frequency of analogue-digital converter 21 is input to analogue-digital converter 21.Therefore, the signal that the described distributor 13 in the LPF portion 17 is distributed becomes not needs high accuracy of processing that the signal of the frequency that is fit to analogue-digital converter 21 uses, can alleviate the burden of the described processing of LPF portion 17.Because input is fit to the signal of the frequency of analogue-digital converter 21 in the analogue-digital converter 21, in other words, because the stable signal of incoming signal level, analogue-digital converter 21 needn't make signal level stablize the predetermined signal processing of usefulness, can alleviate the burden of described signal processing
Like this, the power consumption of LPF portion 17 and analogue-digital converter 21 is reduced as far as possible.It is 1/10 that present embodiment utilizes described frequency conversion to make the frequency of the programme signal of reception, thereby can make the power consumption of LPF portion 17 and analogue-digital converter 21 reduce 1/10.
According to embodiment of the present invention 4, then constitute another frequency mixer portion 66 of the upstream side of the downlink side be configured in LNA12 and distributor 13 with the active mixer circuit, be configured in the frequency mixer portion 15 of the downlink side of distributor 13 with passive frequency mixer circuit formation.The frequency conversion that another frequency mixer portion 66 that present embodiment constitutes with the active mixer circuit does from programme signal to mixed frequency signal.Then, the frequency mixer portion 15 that constitutes with the passive frequency mixer circuit does the frequency conversion from mixed frequency signal to the new mixed frequency signal different with this mixed frequency signal.Thereby the level equalization that can make new mixed frequency signal for example is stable at the signal level of DSP35 energy demodulation in the prearranged signals level.
By making the stable mixed frequency signal of signal level be sent to the 2nd signal processing part 32 by signal processing part 62 like this, analogue-digital converter 21 and digital filter portion 22 needn't make signal level stablize the signal processing of usefulness, can alleviate the burden of described signal processing.Thereby, can reduce the power consumption of analogue-digital converter 21 and digital filter portion 22 as far as possible.
In the present embodiment, make the frequency of the programme signal of reception be for example 1/10 by another frequency mixer portion 65 that constitutes with the active mixer circuit, can make the analogue-digital converter 21 of the 2nd signal processing part 32 and the power consumption of digital filter portion 22 reduce 1/10.
The composition of each tuner pack portion 3,31,41,61 of the respective embodiments described above comprises 2 signal processing parts, is specially to comprise the 1st signal processing part 4,42,62 and the 2nd signal processing part 5,32,43.By constituting each tuner pack portion by the 1st signal processing part and the 2nd signal processing part like this, each signal processing part forms removal easily from the measure of the noise of outside invasion tuner pack portion and the not proper measure that takes place at individual tuner portion.
The respective embodiments described above only illustrate example of the present invention, can change composition in invention scope.Constitute in the above-mentioned execution mode 1,2 and 4 and utilize analogue-digital converter 21 to carry out the conversion of analog signal, but in another embodiment of the present invention, can constitute and utilize the delta sigma analogue-digital converter to carry out the conversion of analog signal to digital signal to digital signal.
In the above-mentioned execution mode 4, constitute another frequency mixer portion 66 by the active mixer circuit, constitute frequency mixer portion 15 by the passive frequency mixer circuit, but in another embodiment of the present invention, can constitute another frequency mixer portion 66 by the passive frequency mixer circuit, constitute frequency mixer portion 15 by the active mixer circuit, also can be fit to equally implement with execution mode 4.In the another execution mode of the present invention, another frequency mixer portion 66 and frequency mixer portion 15 all are made of the active mixer circuit, also can are fit to equally implement with execution mode.
The information recording/outputting apparatus 100 of the receiving system 1 that loads present embodiment then, is described.Fig. 5 is the block diagram of composition that the information recording/outputting apparatus 100 of an embodiment of the present invention is shown.Load described receiving system 1 in the information recording/outputting apparatus 100.Information recording/outputting apparatus 100 is to receive the related programme signal of the program of many channels that broadcasting stations send and the programme information of the programme signal of many channels that expression is received and EPG information record the device that recording medium such as hard disk drive is exported by antenna 2.
The composition of information recording/outputting apparatus 100 comprises information recording/outputting apparatus main body 101, operating portion 102 and control part 6.Information recording/outputting apparatus main body 101 comprises tuner pack portion the 3, the 1st encoder portion the 115, the 1st hard disk drive (hereinafter being sometimes referred to as " 1HDD ") portion 116, the 117, the 1st decoder portion 118 of information management editorial office, information treatment part 119, the 122, the 2nd decoder portion 123 of related information generating unit the 120, the 2nd encoder portion the 121, the 2nd hard disk drive (hereinafter being sometimes referred to as " 2HDD ") portion, media recording portion 124 and programme information handling part 125.
A plurality of broadcast singals that the 1st signal processing part 4 reception antennas 2 of tuner pack portion 3 are caught, a plurality of broadcast singals that demodulation is received, thus the related programme information and electronic program guides (the Electronic ProgramGuide of program of many channels (being n (n for 〉=2 natural number) bar channel in the present embodiment) obtained; Abbreviate EPG as) information.EPG information provides the broadcasting channel list, broadcasts or the content reading of the program of scheduled broadcast and the information of function of being convenient to retrieve and preengage the program of hope.The 1st signal processing part 4 is with programme information and EPG information providing the 2nd signal processing part 5 obtained.
The EPG information that 5 pairs the 1st signal processing parts of the 2nd signal processing part 4 are supplied with and the programme information of many channels carry out A/D conversion to be handled, and is transformed into digital signal from analog signal.The 2nd signal processing part 5 will carry out the mould-described EPG information of number processing and the programme information of many channels is supplied with the 1st encoder portion 115.
Specifically, the programme signal after demodulation section 23 demodulation of tuner pack portion 3 by restituted signal output terminal part 25a～25d, is supplied with the 1st encoder portion 115.The programme information of many channels that the programme signal that 115 pairs of tuner pack portions of the 1st encoder portion 3 supply with is represented is encoded.Particularly, each image information of the programme information of 115 pairs of described many channels of the 1st encoder portion is carried out MPEG for example, and (Moving Picture Expert Group: Motion Picture Experts Group) compression of system is handled, and the acoustic information of described programme information is carried out for example compression of MPEG system handle.The EPG information that the 1st encoder portion 115 represents the programme signal that tuner pack portion 3 supplies with and the coded program information providing 1HDD portion 116 of many channels.
1HHD portion 116 comprise EPG information with recording areas, programme information with recording areas and input information recording areas.EPG information writes down the EPG information that the 1st encoder portion 115 supplies with recording areas.Programme information writes down the coded program information of many channels of the 1st encoder portion 115 supplies with recording areas.The information that the operating portion 102 that input information is set forth later with the recording areas recording operation is also imported.1HDD portion 116 is with the EPG information providing 2nd decoder portion 123 of EPG information with the recording areas record.1HDD portion 116 with programme information with coded program information providing the 1st decoder portion 118 of many channels of recording areas record and the side in the 2nd decoder portion 123.
A plurality of identical programme information in the programme information of 117 integrated management 1HDD portions of information management editorial office, 116 records.The control signal that information management editorial office 117 supplies with according to control part 6 is carried out the editor of the programme information of 1HDD portion 116 records, and particularly, that carries out the non-required part that comprises in the programme information wipes with wiping of non-required programme information etc.The described coded program information decoding that the 1st decoder portion 118 supplies with 1HDD portion 116, and produce decoding information.The 1st decoder portion 118 is with the decoding information supply information handling part 119 that produces.
Information treatment part 119 extracts at least one side in image information and the acoustic information from the decoding information that the 1st decoder portion 118 supplies with, and supplies with related information generating unit 120.The decoding information that information treatment part 119 is supplied with from the 1st decoder portion 118 is on schedule at interval extracted information for still picture, supplies with related information generating unit 120.The predetermined time interval that information treatment part 119 is also pressed when extracting information for still picture is divided decoding information, thereby produces a plurality of decoding informations, supplies with related information generating unit 120.
The control part 6 that information treatment part 119 is set forth in the back is judged as a acoustic information from a plurality of acoustic informations when switching to another acoustic information different with an acoustic information, extract information for still picture from decoding information, supply with related information generating unit 120, also divide decoding information simultaneously, produce a plurality of decoding informations, supply with related information generating unit 120.
Image information that related information generating unit 120 is supplied with identifying operation person's identifying information, information treatment part 112 and at least one side in the acoustic information retrieve the retrieving information of the retrieval key that programme information uses as the expression operator, produce the related information that makes this retrieving information and the decoding information of the 1st decoder portion 118 decoding back generations have incidence relation.Sign) number described identifying information can be operator's name for example, also can be the ID that distributes to each operator (Identification:.In the present embodiment, operating portion 102 is operated image information that input identifying information, information treatment part 119 are supplied with and at least one side in the acoustic information, thereby regulation retrieving information by the operator.
A plurality of information for still picture that related information generating unit 120 is supplied with information treatment part 119 produce the related information that makes this retrieving information and a plurality of decoding informations of information treatment part 119 supplies have incidence relation respectively as retrieving information.In other words, related information generating unit 120 produces and makes information treatment part 119 on schedule at interval, and the predetermined time interval during from a plurality of information for still picture of decoding information extraction and by the extraction information for still picture is divided the related information that a plurality of decoding informations that produce after the decoding information have incidence relation respectively.
Related information generating unit 120 is also according to the idle capacity of the detected 2HDD of the control part of setting forth later 6 portion 122, image information that information treatment part 119 is supplied with and at least one side in the acoustic information produce the related information that makes this retrieving information and a plurality of decoding informations of information treatment part 119 supplies have incidence relation as retrieving information.Related information generating unit 120 is supplied with the 2nd encoder portion 121 with the related information that produces.
After the related information that the 2nd encoder portion 121 supplies with related information generating unit 120 is encoded, produce the coding related information.Particularly, 121 pairs of related informations of the 2nd encoder portion carry out for example compression of MPEG system to be handled, and produces the coding related information.The 2nd encoder portion 121 related information of will encoding is supplied with 2HDD portion 122.
The coding related information that 122 records the 2nd encoder portion 121 of 2HDD portion supplies with.The coding related information that 2HDD portion 122 will write down is supplied with the 1st decoder portion 123.After the coding related information that the 2nd decoder portion 123 supplies with 2HDD portion 122 is deciphered, produce related information, at least one side of medium for supplying recording portion 124 and programme information handling part 125.The coded program information decoding that the 2nd decoder portion 123 supplies with 1HDD portion 116, and the programme information medium for supplying recording portion 124 that will obtain after will deciphering and at least one side of programme information handling part 125.The EPG information providing programme information handling part 125 that the 2nd decoder portion 123 also supplies with 1HDD portion 116.
Media recording portion 124 has at audio frequency cd (Compact Disk; Abbreviate CD as) and digital versatile disc (Digital Versatile Disk; Abbreviate DVD as) etc. in the optical recording media, the function of the programme information that the 2nd decoder portion 123 that writes down supplies with.
Related information that 125 pairs the 2nd decoder portions of programme information handling part 123 supply with and the programme information after the decoding carry out image processing.When programme information handling part 125 was supplied with the EPG information in the 2nd decoder portion 123, the instruction of the output of supplying with according to the control part 6 of setting forth later that relates to EPG information made EPG information output to the output device 126 of the outside that is located at information recording/outputting apparatus 100.Utilize the television receiver of the display of the loud speaker for example have exportable acoustic information and exportable image information, realize output device 126.
When programme information handling part 125 is supplied with described related information in the 2nd decoder portion 123, the instruction of the output of supplying with according to the control part of setting forth later 6 that relates to the retrieving information that comprises in the related information, after carrying out the synchronous processing of the image information of the programme information that the operator wishes and acoustic information, make described image information and acoustic information output to output device 126.
When programme information handling part 125 obtains programme information after the 2nd decoder portion 123 supplies with described decoding, the instruction of the output of supplying with according to the control part of setting forth later 6 that relates to the programme information that the operator wishes, after carrying out the synchronous processing of the image information of the programme information that the operator wishes and acoustic information, make described image information and acoustic information output to output device 126.
Operating portion 102 has a plurality of operating parts such as operation keys of operator's operation.By operating each operating parts, operating portion 102 produces digital informations, character information and to the signal of the information of the expression operation responses such as regulation information such as indication information of information recording/outputting apparatus main body 101, supplies with the control part 6 of setting forth later.Therefore, each operating parts of operator's energy operating operation portion 102 is to information recording/outputting apparatus main body 101 supply informations.The remote controller that sends to the remote-controlled operation of information recording/outputting apparatus main body 101 usefulness as instruction by the information of utilizing infrared communication for example with operator's input is realized the operating portion 102 of present embodiment.In another execution mode of the present invention, can be in information recording/outputting apparatus 101 setting operation portions.
Control part 6 has the function of the control part of described receiving system 1.Control part 6 comprises the hardware resource of the 3, the 1st encoder portion 115 of described tuner pack portion, 1HDD portion 116, the 117, the 1st decoder portion 118 of information management editorial office, information treatment part 119, related information generating unit the 120, the 2nd encoder portion 121, the 122, the 2nd decoder portion 123 of 2HDD portion, media recording portion 124 and the programme information handling part 125 of configuration information recording/output apparatus main body 101 according to the control program integrated management of CPU storage inside.Control part 6 is supplied with control signal according to selection portion 102 signal supplied to each parts of information recording/outputting apparatus main body 101 and configuration information recording/output apparatus main body 101, controls its running.
Control part 6 is according to the programme information of operator's appointment, in other words, the up-to-date EPG information that programme information of wishing according to the operator and described antenna 2 and tuner pack portion 3 obtain produces the recorded program information that expression should record the programme information of 1HDD portion 116.Recorded program information is recorded in unshowned storage part.Operating portion 102 is supplied with the related information of programme information that the operator wishes, and when producing recorded program information, 6 pairs of information recording/outputting apparatus main bodys 101 of control part provide instruction, make it according to recorded program information, the programme information that operator in the programme information of 1HDD portion 116 records is wished records 2HDD portion 122 selectively.Thereby, can make the programme information that the operator wishes in the programme information of 1HDD portion 116 record record 2HDD portion 122.In fact, the coding related information that the 2nd encoder portion 121 is produced is recorded in the 2HDD portion 122.
6 pairs of information recording/outputting apparatus main bodys 101 of control part provide instruction, and the same programme information that makes its many channels that tuner pack portion 3 is received by antenna 2 records 1HDD portion 116 after changing the antenna compression ratio that image information represents by each channel.Thereby the same programme information that can make described many channels records 1HDD portion 116 after changing the compression ratio that image information represents by each channel.
6 pairs of programme information handling parts 125 of control part provide instruction, make it that programme information of information management editorial office 117 integrated managements and at least one side in the voice-frequency-multichannel multiple connection information are outputed to output device 126.Thereby, can make the programme information of described integrated management and at least one side in the voice-frequency-multichannel multiple connection programme information information, output to output device 126.
6 pairs of programme information handling parts 125 of control part output to the instruction of output device 120 for the EPG information of sening as an envoy to.Thereby, can make EPG information output to output device 126.6 pairs of programme information handling parts of control part 125 output to the instruction of output device 126 for the retrieving information that comprises in the related information of sening as an envoy to.Thereby, can make retrieving information output to output device 126.126 pairs of programme information handling parts of control part 125 give that the operator that sends as an envoy to wishes programme information output to the instruction of output device 126.Thereby the programme information that the operator is wished outputs to output device 126.
As mentioned above, according to present embodiment, then, can realize to reduce the information recording/outputting apparatus 100 of manufacturing cost and power consumption by the above-mentioned receiving system 1 that can reduce manufacturing cost and power consumption is loaded in information recording/outputting apparatus 100.
Control part 6 judges whether that the acoustic information from a plurality of acoustic informations that programme information comprises switches to another acoustic information different with a described acoustic information.Control part 6 is judged as when an acoustic information switches to another acoustic information, and information treatment part 119 extracts at least one side image information and the acoustic information from decoding information.
The sum that makes information for still picture and decoding information have the related information of incidence relation that control part 6 should record 2HDD portion 122 is input to operating portion 102, and when operating portion 102 is supplied with described sum, control part 6 according to described sum decision whether with information for still picture as having the retrieving information of incidence relation with decoding information.
Control part 6 detects the idle capacity of 2HDD portion 122.Control part 6 as retrieving information, produces related information with at least one side in described identifying information, acoustic information and the information for still picture according to the idle capacity of detected 2HDD portion 122.
In the present embodiment, recording medium is equivalent at least one side of the 1st recording medium and the 2nd recording medium.The 1st recording medium is equivalent to 1HDD portion 116, the 2 recording mediums and is equivalent to 2HDD portion 122.
Fig. 6 is the flow chart that the related treatment step of the running of control part 6 of information recording/outputting apparatus 100 is shown.The entry condition of the treatment step that the running of the control part 6 of information recording/outputting apparatus 100 is related is: information recording/outputting apparatus 100 energized for example.As long as there is not special statement, the control main body of this treatment step is a control part 6.
Among the step a1, judge that whether tuner pack portion 3 passes through the programme information that antenna 2 receives many channels of broadcasting stations transmission, if receive, enters into step a2; Do not receive, then wait for, up to this information of reception.
Among the step a2, judge for example whether tuner pack portion 3 obtains the electronic program guide information (hereinafter only being called " EPG information " sometimes) that the broadcasting station sends, if obtain, enters into step a3; Do not obtain, then wait for, up to obtaining this information.
Among the step a3, make the programme information of described many channels that tuner pack portion 3 receives and EPG information that tuner pack portion 3 obtains record 1HDD116 after, enter into step a4.
Among the step a4, judge whether the programme information that operator's operating operation portion 102 and assigned operation person wish.In other words, judge whether to supply with the related information of programme information that the operator wishes,, enter into step a5 if supply with from operating portion 102; Do not supply with, then wait for, up to this information of supply.
Among the step a5, the related information of programme information that the described operator that operating portion 102 is supplied with among EPG information that obtains according to step a2 and the step a4 wishes, after producing the recorded program information of the programme information that expression should record 2HDD portion 122, enter into step a6.
Among the step a6,, make the programme information that the operator wishes in the programme information of 1HDD portion 116 records record 2HDD portion 122 according to the recorded program information that step a5 produces.
In the present embodiment, after constituting programme information that the described operator with 1HDD portion 116 records wishes and recording 2HDD portion 122, wipe the programme information that the described operator of record in the 1HDD portion 116 wishes.
As mentioned above, according to present embodiment, then the related programme information and the EPG information of program of many channels that tuner pack portion 3 is received by antenna 2 records 1HDD portion 116.During programme information that operator's operating operation portion 102 and assigned operation person wish, the information providing control part 6 that the programme information of described hope is related.The related information of programme information of the described hope that control part 6 is supplied with according to the EPG information and the operating portion 102 of 1HDD portion 166 record produces expression and should record 2HDD portion 122 fens program recording of informations programme information.Control part 6 with the recording capacity of guaranteeing recording medium and the programme information of selectively operator in the programme information of 1HDD portion 116 records being wished, records 2HDD portion 122 according to the recorded program information that produces.
Because at 2HDD portion 122 programme information that the operator wishes in the programme information that sends of recorded announce platform selectively, the operator needn't carry out the setting of subscription and video recording as above-mentioned prior art like this.Therefore, different in the present embodiment with prior art, can prevent because of forgetting that setting subscription and video recording can not watch programme information.
Because the programme information of wishing the 122 recording operation persons of 2HDD portion outputs to output devices 126 such as television receiver by the programme information with 2HDD portion 122 records, the operator can be more convenient and be promptly watched programme information.Thereby even if the programme information from begin to see midway, the operator also can watch the part of not watching in this programme information more convenient and reliably.Like this, operability and convenience to the operator are improved.
Because 2HDD portion 122 one sides are guaranteed recording capacity, a recorded program information can effectively be utilized 2HDD portion 122 again.Thereby the recording capacity that can prevent 2HDD portion 122 is not enough and programme information that take place the operator can not to be wished records the not proper of 2HDD portion 122.
The whole programme information placeholder records that like that tuner pack portion 3 received by antenna 2 mentioned above are after 1HDD portion 166, the programme information of hope is kept at the 2HDD portion 122 different with 1HDD portion 166, even thereby, also can prevent the information dropout of wishing owing to 1HDD portion 116 faults and operator's mistake are lost the programme information of 1HDD portion 166 records.
Utilize present embodiment, the up-to-date EPG information that information of wishing according to the operator and described tuner pack portion 3 obtain produces the recorded program information of the programme information that should write down in the expression 1HDD portion 166.Therefore, even when having change in the programme information because broadcasting special series and prolongation broadcasting wait, also can make the change of this programme information obtain reflection again, seek up-to-date electronic program guide information and with the consistency of its program information corresponding, make programme information record 1HDD portion 116 and 2HDD portion 122 again.
Thereby in the time of preventing the programme information that the operator watches 2HDD portion 122 record, the programme information that this programme information and operator wish is inconsistent, in other words, can prevent inconsistency.Therefore, the operator can watch the programme information of hope reliably.So, can further improve convenience to the operator.
Fig. 7 is the figure of amount of information that the programme information of the channel that receives same programme information and each channel is shown.In the present embodiment, when tuner pack portion 3 receives the same programme information of many channels by antenna 2, after the 1st encoder portion 115 changes the image compression rate that image information represents by each channel, the same programme information of many channels is recorded 1HDD portion 116.For example can utilizing, the operator sets the image compression rate from the method for operating portion 102 inputs in advance.Also can set this compression ratio by the channel number when operating portion 102 inputs receive the same program of many channels in advance of operator for example.In the present embodiment, imagination receives the situation of the same programme information of 4 channels (abbreviating ch as) (being specially ch 1～ch 4).
Amount of information (being 6 GB (abbreviating GB as) in the present embodiment) the former state when programme information of ch 1 is pressed reception does not record 1HDD portion 166 with not adding compression.The programme information utilization of ch 2 compression is recorded to 1HDD portion 166 after handling the amount of information that forms 4.6GB for example.The programme information utilization of ch 3 compression is recorded to 1HDD portion 166 after handling the amount of information that forms 3.2GB for example.The programme information utilization of ch 4 compression is recorded to 1HDD portion 166 after handling the amount of information that forms 2.2GB for example.
In sum, according to present embodiment, after then each channel changed the image compression rate that image information represents, the same programme information of many channels that tuner pack portion 3 is received by antenna 2 recorded 1HDD portion 166.Then, when the operator specified the described a plurality of same program information of 1HDD portion 166 record, a plurality of identical programme informations that compression ratio is different separately recorded 2HDD portion 122.Therefore, even same programme information, the also compression ratio of the image information that recorded program information comprises in 1HDD portion 166 and 2HDD portion 122 programme information different respectively to each channel of many channels.
Therefore, when the operator recorded the programme information of 2HDD portion 122 record external record medium such as magnetic recording medium and optical recording media, the programme information of only selecting the compression ratio of wishing just can be easily records described recording medium with the programme information of compression ratio that meets the recording capacity of external record medium.Like this, when making the operator that the programme information of 2HDD portion 122 record is recorded outside recording medium, the quality that needn't carry out the image information that will comprise in the programme information is transformed into the processing of the quality that the operator wishes and the processing of compressing with the compression ratio of the recording capacity that meets the external record medium.Therefore, can shorten the time that the programme information of 2HDD portion 122 records is recorded the processing needs of outside recording medium, can further improve convenience the operator.
Fig. 8 is the figure that the voice-frequency-multichannel multiple connection programme information 130 that the channel that receives voice-frequency-multichannel multiple connection programme information and every kind of language receive is shown.In the present embodiment, when the programme information of many channels that tuner pack portion 3 receives by antenna 2 be the voice-frequency-multichannel multiple connection programme information of for example multilingual acoustic information of multiple connection, described voice-frequency-multichannel multiple connection programme information is pressed the audio information recording of every kind of language to 1HDD portion 166.Imagination receives the situation of the same voice-frequency-multichannel multiple connection programme information of 4 channels (being specially ch 1～ch 4) in the present embodiment.The voice-frequency-multichannel multiple connection programme information of present embodiment is the information of the acoustic information of 4 kinds of different language of multiple connection (being specially Japanese, English, French and Chinese).
When tuner pack portion 3 received voice-frequency-multichannel multiple connection programme information by antenna 2, the 1st signal processing part 4 made the multiple sound information separated of multiple connection respectively from voice-frequency-multichannel multiple connection programme information.With image information and described each acoustic information that separates by each acoustic information as 1 programme information, by each channel record to 1HDD portion 166.
For example be 6GB and comprise image information and the voice-frequency-multichannel multiple connection programme information of Japanese acoustic information records 1HDD portion 166 by ch1 amount of information.Be 6GB with amount of information and comprise image information and the voice-frequency-multichannel multiple connection programme information of English acoustic information records 1HDD portion 166 by ch 2.Be 6GB with amount of information and comprise image information and the voice-frequency-multichannel multiple connection programme information of French acoustic information records 1HDD portion 166 by ch 3.Be 6GB with amount of information and comprise image information and the voice-frequency-multichannel multiple connection programme information of Chinese sound information records 1HDD portion 166 by ch 4.
In sum, according to present embodiment, when then the programme information that receives by antenna 2 of tuner pack portion 3 is the voice-frequency-multichannel multiple connection programme information of the multilingual acoustic information of multiple connection, described voice-frequency-multichannel multiple connection programme information is recorded 1HDD portion 166 by the acoustic information of each language.Then, when the operator specified in the various acoustic informations that the voice-frequency-multichannel multiple connection programme information of 1HDD portion 166 record comprises at least a language, the voice-frequency-multichannel multiple connection programme information that will comprise this sound specified information recorded 2HDD portion 122.
Therefore, when the operator watches the voice-frequency-multichannel multiple connection programme information of 2HDD portion 122 records, needn't carry out the operation that a language from multilingual switches to another language, only select the acoustic information of the language of wishing just can watch the acoustic information voice-frequency-multichannel multiple connection programme information of the language that comprises hope easily.
When voice-frequency-multichannel multiple connection programme information being recorded the recording medium of outsides such as magnetic recording medium and optical recording media, the operator needn't set the acoustic information of the language that records the external record medium in advance, and the voice-frequency-multichannel multiple connection programme information of acoustic information that the acoustic information voice-frequency-multichannel multiple connection programme information of only selecting to comprise the language of hope just can will comprise the language of hope records outside recording medium easily.
Fig. 9 is the figure that the composition example of integrated management information 140 is shown.In the present embodiment, pass through same programme information a plurality of programme informations that but the image compression rate is different and the voice-frequency-multichannel multiple connection programme information that antenna 2 receives by 117 integrated management tuner pack portions 3 of information management editorial office, and record 1HDD portion 166 as integrated management information 140.
In the present embodiment, establishing above-mentioned programme information shown in Figure 7 and voice-frequency-multichannel multiple connection programme information shown in Figure 8 is the programme information of same content.In the present embodiment, when a plurality of voice-frequency-multichannel multiple connection programme informations of the acoustic information that a plurality of same programme information that such each the channel compression ratio of Fig. 7 is different and Fig. 8 comprise various language like that record 1HDD portion 166, after information management editorial office 117 is in addition comprehensive as shown in Figure 9, record 1HDD portion 166 as integrated management information 140.
In sum, according to the present invention, the same programme information of integrated management records 1HDD portion 166 with it as integrated management information 140.Then, when the operator specifies the integrated management information of 1HDD portion 166 record, the integrated management information 140 of its appointment is recorded 2HDD portion 122.Therefore, when information management editorial office 117 records the editing operating of programme information of 1HDD portion 166 and the described operator of output 2HDD portion 122 records wish programme information the time, only extract the integrated management information 140 of 1HDD portion 166 and 2HDD portion 122 records, just can comprehensively extract the programme information of hope, thereby compare when writing down a plurality of programme information respectively, can convenient and promptly extract the programme information of wishing.Like this, the convenience to the operator is improved.
Figure 10 is the figure that the demonstration example of integrated management information 140 is shown.In the present embodiment, carry out integrated management by information management editorial office 177, and export or edit when comprising the integrated management information 140 of at least one side in programme information and the voice-frequency-multichannel multiple connection programme information, described integrated management information 140 is outputed to be located at outside output device 126.For the ease of understanding, the programme information of 4 channels (being specially ch 1～ch 4) that shown in Figure 10 integrated management information 140 comprised outputs to the situation of output device 126.
Therefore, when watching in 1HDD portion 166 and the 2HDD portion 122 programme information of wishing in the programme information of many channels that the integrated management information 140 of record comprises and when making it record outside recording medium, the operator can be by seeing the programme information of many channels that the integrated management information 140 that outputs to output device 126 comprises clearly, and is convenient and promptly select the programme information of wishing.Like this, the convenience to the operator is improved.
In sum, according to present embodiment, then after the programme information decoding of the 1st decoder portion 118 with record in the 1HDD portion 116, export decoding information.At least one side that information treatment part 119 extracts acoustic information and image information from the decoding information of the 1st decoder portion 118 outputs.Related information generating unit 120 as the retrieving information that the expression operator retrieves the retrieval key that programme information uses, produces the related information that the decoding information that this retrieving information and the 1st decoder portion 118 are exported has incidence relation with at least one side of the identifying information of device operator, acoustic information that information treatment part 119 extracts and image information.The related information that 121 pairs of related information generating units of the 2nd encoder portion 120 produce is encoded, and the output encoder related information.Control part 6 records 2HDD portion 122 with the coding related information of the 2nd encoder portion 121 outputs.
Behind the related information coding that will have incidence relation to identifying information and the decoding information that makes as retrieving information, when recording 2HDD portion 122, even if the operator is a plurality of, also can be according to identifying information identifying operation person as retrieving information, and rapidly to operator's prompting and each operator's program information corresponding.Therefore, the operator is can be from the programme information of prompting more convenient and promptly select the programme information watch.Like this, can make the operator for example watch the programme information of hope immediately, can improve convenience the operator.
With make have the related information coding of incidence relation as the acoustic information of retrieving information or image information and decoding information after, when recording 2HDD portion 122, by the operator being pointed out conduct and decoding information have the acoustic information or the image information of the retrieving information of incidence relation, the operator listens to the acoustic information of prompting or sees the image information of prompting clearly, thus the programme information that energy is more convenient and selection is promptly wished.Like this, can make the operator for example watch the programme information of hope immediately, can improve convenience the operator.
According to present embodiment, then the image information that comprises in the programme information comprises the Still image data of representing rest image.Information treatment part 119 extracts Still image data on schedule at interval from the decoding information that the 1st decoder portion 118 produces.The time interval that information treatment part 119 is used when extracting Still image data is divided into a plurality of decoding informations with decoding information.Each Still image data that related information generating unit 120 is extracted information treatment part 119 produces the related information that makes this retrieving information and each decoding information of information treatment part 119 divisions have incidence relation respectively as retrieving information.After this related information is encoded by the 2nd encoder portion 121, the output encoder related information.Control part 6 related information of will encoding records 2HDD portion 122.
Read as having a plurality of information for still picture of the retrieving information of incidence relation from the coding related information of 2HDD portion 122 record with each decoding information, to operator prompting, thereby the operator can select the corresponding information for still picture of programme information of the part of watching with hope immediately from the Still image data of prompting.Therefore, the operator can be more convenient and the information for still picture program information corresponding (being specially the programme information of the part that operator hope itself is watched in 1 programme information) of immediately watching and selecting.Like this, the convenience to the operator is improved very much.
According to present embodiment, then control part 6 judges whether that an acoustic information of a plurality of acoustic informations of comprising switches to another acoustic information different with a described acoustic information from the programme information of 1HDD portion 116 record.A described acoustic information for example is stereo and male voice.Described another acoustic information for example is that single-pass is said and female voice.
Information treatment part 119 is judged as when a described acoustic information switches to described another acoustic information at control part 6, extracts information for still picture from the decoding information that the 1st decoder portion 118 produces.Information treatment part 119 also is judged as when an acoustic information switches to another acoustic information at control part 6 decoding information is divided into a plurality of decoding informations.The information for still picture that related information generating unit 120 is extracted information treatment part 119 produces the related information that makes this retrieving information and the decoding information of information treatment part 119 divisions have incidence relation as retrieving information.After this related information is encoded by the 2nd encoder portion 121, the output encoder related information.Control part 6 related information of should encoding records 2HDD portion 122.
During information recording/outputting apparatus 100 output programme informations, read as having incidence relation with decoding information and control part 6 is judged as the information for still picture that obtains when an acoustic information switches to another acoustic information from the coding related information of 2HDD portion 122 record, the operator is pointed out.Thereby the operator can select from the information for still picture of prompting and the corresponding information for still picture of partial programme information of wishing to watch immediately.Switch to the programme information of the time point output function person selection of another acoustic information since an acoustic information.
Therefore, can prevent the output of part (for example part midway of lines) midway programme information, and produce and the operator to be formed to be difficult to grasp programme information content etc. not proper from output sound information.Can also more convenient and immediately watch the information for still picture program information corresponding of selecting with the operator (being specially the programme information of the part that operator hope itself is watched in 1 programme information).Thereby, the convenience to the operator is improved very much.
According to present embodiment, then the related information that produces of related information generating unit 120 is a information for still picture that information treatment part 119 is extracted as retrieving information and the decoding information that makes this retrieving information and export with the 1st decoder portion 118 has the information of incidence relation.Import by operator's operating operation portion 102, regulation makes information for still picture and decoding information have the sum of the related information of incidence relation.Control part 6 is according to the related information sum of described regulation, decision whether with information for still picture as having the retrieving information of incidence relation with decoding information.
For example, the related information sum of 2HDD portion 122 record is less than predetermined association information sum, then with information for still picture as retrieving information; The related information sum of 2HDD portion 122 record is more than or equal to predetermined association information sum, then with amount of information less than the information (for example character information) of the amount of information of information for still picture as retrieving information.
In sum, by the described related information sum of importing in advance and stipulating according to operating portion 102, whether decision is taken as information for still picture with the retrieving information of related information, can suppress and decoding information has the amount of information increase of the retrieving information of incidence relation.Therefore, the recording capacity that records the related information of 2HDD portion 122 behind the 2nd encoder portion 121 coding can be suppressed to minimum needs the limit, and the recording capacity that can prevent 2HDD portion 122 is not enough and produce and can not write down the not proper of the programme information that should write down.Like this, the idle capacity of 2HDD portion 122 is guaranteed, can effectively utilizes 2HDD portion 122.
Above-mentioned execution mode only illustrates example of the present invention, can form in the scope of invention inner conversion.Constitute in the above-mentioned execution mode and operating portion 102 is operated by the operator, image information that input identifying information, information treatment part 119 are supplied with and at least one side in the acoustic information, the regulation retrieving information, but be not limited to this composition.
In another embodiment of the present invention, control part 6 detects the idle capacity of 2HDD portion 122.Control part 6 control related information generating units 120 make it according to control part 6 detected idle capacity, and at least one side in identifying information, acoustic information and the image information as retrieving information, is produced related information.Related information generating unit 120 is under the smaller situation of the idle capacity of the detected 2HDD of control part 6 portion 122, and the information that amount of information is less (for example identifying information) produces related information as retrieving information.Related information generating unit 120 is under the bigger situation of the idle capacity of the detected 2HDD of control part 6 portion 122, and the information that amount of information is bigger (for example information for still picture) produces related information as retrieving information.
Mentioned above like that according to the idle capacity appropriate change of 2HDD portion 122 information as retrieving information, thus the idle capacity of 2HDD portion 122 can effectively be utilized.
Be loaded into information recording/outputting apparatus 101 by each receiving system 30,40,60, can realize to reduce in the same manner the information recording/outputting apparatus of manufacturing cost and power consumption with execution mode 1 with above-mentioned the 2nd, the 3rd and the 4th execution mode.
The present invention can implement with other variety of way, and does not break away from its spirit or principal character.Therefore, above-mentioned execution mode its all aspect samples only all, scope of the present invention is the scope shown in claims, is not subjected to any constraint of specification text.Belong to claims scope conversion and the change all within the scope of the present invention.

Claims (9)

1. receiving system can receive the related programme signal of program of the channel of many different frequency ranges that the broadcasting station sends, and it is characterized in that, comprises
The programme signal that receives is carried out signal processing, and the 1st signal processing part of forming by integrated circuit;
The downlink side that is configured in the 1st signal processing part carries out signal processing with the signal to the output of the 1st signal processing part, and the 2nd signal processing part of being made up of integrated circuit; And
The the 1st and the 2nd signal processing part supplied with makes its control part that carries out the predetermined instruction that signal processing uses,
The 1st signal processing part has
The 1st filter section that the programme signal of the 1st frequency range in the programme signal of many channels is passed through;
Amplify the amplifier of the programme signal of the 1st filter section output;
To the programme signal of each channel allocation amplifier output distributor;
Produce the local oscillator of the oscillator signal of predetermined oscillation frequency;
The programme signal of each channel that distributor is distributed and the oscillator signal that local oscillator produces carry out mixing, and produce the frequency mixer portion of mixed frequency signal;
The control portion of gain of the gain of the mixed frequency signal that control frequency mixer portion produces; And
The 2nd filter section that the mixed frequency signal of the 2nd frequency range in the mixed frequency signal of control portion of gain output is passed through,
The 2nd signal processing part has
The mixed frequency signal of the 2nd filter section output is transformed into the converter of digital signal;
The 3rd filter section that the digital signal of the 3rd frequency range in the digital signal of converter output is passed through; And
The demodulation section that the digital signal of the 3rd filter section output is carried out demodulation.
2. the receiving system described in claim 1 is characterized in that,
Described demodulation section is a digital signal processing device.
3. the receiving system described in claim 1 is characterized in that,
Make in the signal level at least one passed through of the figure signal level of the passband width that can change described the 1st filter section, converter and the 3rd filter section on the structure.
4. the receiving system described in claim 1 is characterized in that,
Described converter is the delta sigma analog digital converter.
5. the receiving system described in claim 1 is characterized in that,
Described frequency mixer portion utilizes the Direct Conversion mode, carries out the frequency translation of programme signal to mixed frequency signal.
6. the receiving system described in claim 1 is characterized in that,
Described control part is controlled the 1st filter section, makes the passband width of described the 1st filter section for smaller or equal to the frequency bandwidth of 2 times of minimum receive frequencies of programme signal with smaller or equal to the 1/2 programme signal medium and small side's of the frequency bandwidth of high receive frequency frequency bandwidth.
7. the receiving system described in claim 1 is characterized in that,
Another frequency mixer portion and another local oscillator of also comprising the upstream side of the downlink side that is configured in described amplifier and distributor,
Described another local oscillator has the function that produces oscillator signal,
The oscillator signal that the programme signal of described another frequency mixer portion pair amplifier output and described another local oscillator produce carries out mixing, and produces mixed frequency signal.
8. the receiving system described in claim 7 is characterized in that,
Constitute described frequency mixer portion by the passive frequency mixer circuit, constitute described another frequency mixer portion by the active mixer circuit.
9. an information recording/outputting apparatus is characterized in that,
Load a kind of receiving system, this receiving system can receive the related programme signal of program of the channel of many different frequency ranges that the broadcasting station sends, and comprises:
The programme signal that receives is carried out signal processing, and the 1st signal processing part of forming by integrated circuit;
The downlink side that is configured in the 1st signal processing part carries out signal processing with the signal to the output of the 1st signal processing part, and the 2nd signal processing part of being made up of integrated circuit; And
The the 1st and the 2nd signal processing part supplied with makes its control part that carries out the predetermined instruction that signal processing uses,
The 1st signal processing part has
The 1st filter section that the programme signal of the 1st frequency range in the programme signal of many channels is passed through;
Amplify the amplifier of the programme signal of the 1st filter section output;
To the programme signal of each channel allocation amplifier output distributor;
Produce the local oscillator of the oscillator signal of predetermined oscillation frequency;
The programme signal of each channel that distributor is distributed and the oscillator signal that local oscillator produces carry out mixing, and produce the frequency mixer portion of mixed frequency signal;
The control portion of gain of the gain of the mixed frequency signal that control frequency mixer portion produces; And
The 2nd filter section that the mixed frequency signal of the 2nd frequency range in the mixed frequency signal of control portion of gain output is passed through,
The 2nd signal processing part has
The mixed frequency signal of the 2nd filter section output is transformed into the converter of digital signal;
The 3rd filter section that the digital signal of the 3rd frequency range in the digital signal of converter output is passed through; And
The demodulation section that the digital signal of the 3rd filter section output is carried out demodulation.
CNB2006101086325A 2005-07-28 2006-07-27 Receiver apparatus and information recording/outputting apparatus Expired - Fee Related CN100423564C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2005219312 2005-07-28
JP2005-219313 2005-07-28
JP2005219312A JP2007036862A (en) 2005-07-28 2005-07-28 Information recording output apparatus
JP2005219313 2005-07-28
JP2005-219312 2005-07-28

Publications (2)

Publication Number Publication Date
CN1905639A CN1905639A (en) 2007-01-31
CN100423564C true CN100423564C (en) 2008-10-01

Family

ID=37674752

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006101086325A Expired - Fee Related CN100423564C (en) 2005-07-28 2006-07-27 Receiver apparatus and information recording/outputting apparatus

Country Status (2)

Country Link
JP (1) JP2007036862A (en)
CN (1) CN100423564C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2141819A1 (en) 2008-07-04 2010-01-06 Telefonaktiebolaget LM Ericsson (publ) Signal processing device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0669829A (en) * 1991-03-19 1994-03-11 Hitachi Ltd Receiver made into ic
JPH11155139A (en) * 1997-11-21 1999-06-08 Sharp Corp Digital broadcast receiver
EP1002371A2 (en) * 1997-01-15 2000-05-24 Koninklijke Philips Electronics N.V. Multi-tuner receiver
CN2532643Y (en) * 2001-11-05 2003-01-22 成都旭光科技股份有限公司 High-sensitive receiving video tuner
CN1574658A (en) * 2003-06-24 2005-02-02 松下电器产业株式会社 High frequency receiving device, integrated circuit used for same, and TV receiver using them

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0669829A (en) * 1991-03-19 1994-03-11 Hitachi Ltd Receiver made into ic
EP1002371A2 (en) * 1997-01-15 2000-05-24 Koninklijke Philips Electronics N.V. Multi-tuner receiver
JPH11155139A (en) * 1997-11-21 1999-06-08 Sharp Corp Digital broadcast receiver
CN2532643Y (en) * 2001-11-05 2003-01-22 成都旭光科技股份有限公司 High-sensitive receiving video tuner
CN1574658A (en) * 2003-06-24 2005-02-02 松下电器产业株式会社 High frequency receiving device, integrated circuit used for same, and TV receiver using them

Also Published As

Publication number Publication date
JP2007036862A (en) 2007-02-08
CN1905639A (en) 2007-01-31

Similar Documents

Publication Publication Date Title
US6467093B1 (en) Method and apparatus for receiving digital broadcasts
CN101341740A (en) Device linkage apparatus
US20110158611A1 (en) Systems and methods for content storage
JP2003046921A (en) Program reservation-recording method and apparatus thereof, and program therefor
KR20000076621A (en) Method and apparatus for the reproduction of digital data streams
JP2005167782A (en) Recording method of digital broadcast and digital broadcast receiver
CN1917656B (en) Recording/reproduction device and method for digital broadcasting
CN1875623B (en) Program data recording method and apparatus
KR100387129B1 (en) Web personal video recorder via internet and method therefor
CN100423564C (en) Receiver apparatus and information recording/outputting apparatus
JPH09205638A (en) Data transmission system and receiver
KR100445006B1 (en) Method and apparatus for managing a recording broadcasting program list
JP4399817B2 (en) Program reservation recording method, program reservation recording apparatus, and program reservation recording program.
JPH10145700A (en) Channel selection device
KR20040037372A (en) Method and apparatus for controlling the display of program guide
US20040247287A1 (en) Video signal output device and video signal output method
US20100178040A1 (en) Digital broadcast receiving apparatus, recording apparatus, method and system
KR200315214Y1 (en) The timer recording apparatus for end time change in vcr
EP1356668B1 (en) Device with several transport current paths for receiving digital radio signals
KR200179568Y1 (en) A complex video recording system
JPH07203326A (en) Television signal processor and television signal processing system
KR100658835B1 (en) Remte Controller Having Macro Function
EP3228086A1 (en) Electronic program guide displaying relevant field based on time of day
JP3796203B2 (en) Broadcast receiver with recording device control function
KR100775700B1 (en) Fine tuning method of broadcasting reception apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081001

Termination date: 20140727

EXPY Termination of patent right or utility model