CN100559831C - Digital television set information accumulation device and digital television information accessing method - Google Patents
Digital television set information accumulation device and digital television information accessing method Download PDFInfo
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- CN100559831C CN100559831C CNB2007101851824A CN200710185182A CN100559831C CN 100559831 C CN100559831 C CN 100559831C CN B2007101851824 A CNB2007101851824 A CN B2007101851824A CN 200710185182 A CN200710185182 A CN 200710185182A CN 100559831 C CN100559831 C CN 100559831C
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Abstract
The present invention is a kind of digital television set information accumulation device and digital television information accessing method, and this device includes a random access memory and a nonvolatile memory, and this method comprises the following step: receive a set information transition information; Store a set information in this random access memory; Remove this nonvolatile memory; And with this set information from this random access memory unloading in this nonvolatile memory; Wherein this set information can include a channel information and a screen display presetting information.
Description
Technical field
The present invention relates to a kind of digital television set information accumulation device and digital television information accessing method, relate to particularly and utilize flash memory to carry out the storage device and the access method of the set information relevant with Digital Television.
Background technology
Entering digitized today, along with the development of Digital Television and the progress of Digital Signal Processing, the epoch of digital television program and high definition TV (High Definition TV) also arrive.Compared to traditional TV signal, it no matter is wireless or cable TV signal, mostly its transmission means is to transmit with analog signal, therefore in transmission course, can accumulate many noises and influence playback quality, if yet to transmit with digital signal, the definition in keeping its transmission course, digital signal also can be via the compression and coding process, and can on same channel, load the more information of high power capacity, or even also can increase more various signal processing mode.
See also Fig. 1, be the function block schematic diagram of a traditional digital television 100.Shown in this figure, this digital television 100 can receive the TV signal that a TV signal source 101 is produced via a channel selector (tuner) 102, via a demodulator (demodulator) 103, one separate the processing of multiplexer (demultiplexer) 104 after, the gained data just can be respectively by a sound decoder 111, the processing that one an image decoding device 112 and a data decoder 113 are deciphered, sound part wherein just can be play on a loudspeaker 131, the part of image then again after the processing via a graphic process unit (graphics processor) 121, just can show on a display 132.
In addition, the information of the TV signal that this TV signal source 101 is input into after the processing of then can be earlier being deciphered by this data decoder 113, proceeds to handle operation again by a CPU 122; And the user utilizes user's control interface 140, the set information that comprises panel button 142 difference in functionalitys on operation control one remote controller 141 or this digital television 100 of operation control, after handling operation by this CPU 122, can both among a storage medium 150, be stored and record.And this storage medium 150 can include: a dynamic random access memory (DRAM) 151, a flash memory (Flash Memory) 152 and one Electrically Erasable Read Only Memory (ElectricallyErasable Programmable Read Only Memory is called for short EEPROM) 153.
The relevant information of above-mentioned TV signal, include the channel number that is comprised in the TV signal, the frequency of channel, the identification code of channel, channel electronics programme (Electronic Programming Guide, be called for short EPG), the programm name of channel, the programme content classification of channel, the platform of channel number, can interactively information etc., and these information can be commonly referred to as channel information (Channel Information), for instance, digital television 100 can carry out the function of automatic channel search (Autoscan) to the TV signal that is received, on this display 132, just can demonstrate all the platform numbers that search or the corresponding informance of channel number this moment, what wired or wireless TV programme have promptly been searched, and the channel number of wherein pairing separately image or sound, this CPU 122 is that the identification code according to channel makes up corresponding image and sound channel, thereby can demonstrate complete TV programme; For example an image channel (or can be described as video) can correspondence go out a plurality of sound channels (or can be described as audio frequency), similarly be English, French, Spanish etc., and the renewal of these information can be deposited in this storage medium 150 with record, inquiry and application when providing the user to use.
And above-mentioned user utilizes the set information of 140 pairs of correlation functions of this user's control interface, then can include the contrast of user to the show image of this digital television 100, brightness, colourity etc., or the volume of demonstration sound, language form etc., or special channel lock, as the demonstration of channel platform number and time whether information show (), menu language, sleep regularly, quiet and complete blue picture of no signal etc., these information then can be commonly referred to as screen display presetting information (On Screen Display (being called for short OSD) SettingInformation), for instance, the user is when watching TV programme, can set sound and the image display condition on this loudspeaker 131 and this display 132 at any time, and can be in this storage medium 150 with the setting recording finished, even make the user when switching one television channel is watched, still can show with identical display condition, or when after closing this digital television 100, opening once more, still can play with the television channel shown before closing or the display condition of sound and image.
With regard to present technology, this dynamic random access memory 151 in this storage medium 150 can provide the temporary of runtime data, this flash memory 152 then can write down the program code execution of device or claim firmware (Firmware) etc., and the setting situation of these above-mentioned information (comprising channel information and screen display presetting information), then be to be recorded in this Electrically Erasable Read Only Memory 153, therefore, the memory cell in the traditional digital television just is set with it respectively and earmarks.
Yet, though this Electrically Erasable Read Only Memory 153 can provide Digital Television to finish the record of this set information and the function of renewal, and this Electrically Erasable Read Only Memory 153 can be finished data access in the mode of writing direct, and could write after not needing to wait to finish its core dump memory clear, therefore can finish record and the purpose of upgrading very apace, but generally speaking, the production cost of this Electrically Erasable Read Only Memory 153 is than higher, and the different memories unit is arranged at the complexity that also can increase circuit design in the digital television, so, in the time of finishing the function of the record of this set information and renewal if utilize other associated memory unit, except that reducing the production cost, can also reduce the complexity of circuit design.
Therefore, the technology that how to propose a following lower-cost device of comparing and also can reach same effect just becomes the main purpose that the present invention develops.
Summary of the invention
The object of the present invention is to provide a kind of digital television set information accumulation device and digital television information accessing method, utilize flash memory to come the relevant set information of store digital TV.
The present invention is a kind of digital television information accessing method, be applied between a digital television main body, a TV signal source and the user's control interface, this digital television main body includes a random access memory and a nonvolatile memory, and this method comprises the following step: receive a set information transition information of being sent from this TV signal source or this user's control interface; Store a set information in this random access memory; Remove this nonvolatile memory; And finished when removing when this nonvolatile memory, with this set information from this random access memory unloading in this nonvolatile memory; Wherein this set information can include a channel information and a screen display presetting information.
In this digital television information accessing method, wherein this method also comprises the following step: after this nonvolatile memory is sent a clearance order, can continue to carry out other work,, go again to check whether this nonvolatile memory finishes removing up to meeting one when pre-conditioned; Wherein the pre-conditioned Preset Time that can be of this that is met has arrived, or has finished a default job.
In this digital television information accessing method, the command information that the channel that this set information transition information is sent for this user's control interface is searched.
In this digital television information accessing method, this nonvolatile memory includes a first area and a second area, and this method also comprises the following step: with this screen display presetting information in this set information, this first area from this random access memory unloading in this nonvolatile memory; And with this set information this second area from this random access memory unloading in this nonvolatile memory.
Another aspect of the present invention is a kind of digital television devices, include a digital television main body, this digital television main body includes: a CPU; One random access memory is controlled and a set information can be stored in wherein by this CPU; An and nonvolatile memory, include a first area and a second area, control and can be by this CPU the first's information in this set information, from this random access memory unloading in this first area, and by this CPU control and can with this set information from this random access memory unloading in this second area.
In this digital television devices, this nonvolatile memory can be a flash memory or a reproducible type CD-R.
In this digital television devices, this digital television devices also includes user's control interface, and this digital television main body can receive the set information transition information that a TV signal source or this user's control interface are sent; Wherein this set information can include a channel information and a screen display presetting information.
In this digital television devices, this channel information includes the information of programm name of identification code, the channel of frequency, the channel of channel at least.
In this digital television devices, this screen display presetting information can be this first's information, include the user and utilize contrast, brightness, the colourity of this user's control interface, or show the prescribed situation of the volume of sound the show image of this digital television main body.
Another aspect of the present invention is a kind of digital television, include: a CPU; One random access memory is controlled and a set information can be stored in wherein by this CPU; And a nonvolatile memory, by this CPU control and can with this set information from this random access memory unloading in this nonvolatile memory; After wherein this CPU is sent a clearance order to this nonvolatile memory, can continue to carry out other work, finished when removing up to this nonvolatile memory, just with this set information from this random access memory unloading in this nonvolatile memory; Wherein this set information can include a channel information and a screen display presetting information.
Another aspect of the present invention is a kind of digital television information accessing method, be applied between a digital television main body, a TV signal source and the user's control interface, this digital television main body includes a CPU, a random access memory and a nonvolatile memory, and this method comprises the following step: receive the one first set information transition information of being sent from this TV signal source or this user's control interface; This CPU is stored in a set information in this random access memory; And this nonvolatile memory removed, and by this CPU with the first's information in this set information, the first area from this random access memory unloading in this nonvolatile memory, and with the second area of this set information from this random access memory unloading in this nonvolatile memory.
In this digital television information accessing method, this method also comprises the following step: receive the one second set information transition information of being sent from this TV signal source or this user's control interface; When this second set information transition information shows that this first's information in this set information only produces change, by this CPU with this first's information in this set information, this first area from this random access memory unloading in this nonvolatile memory; And when this second set information transition information show non-when having only this first's information in this set information to produce change, then by this CPU with this set information this second area from this random access memory unloading in this nonvolatile memory.
Another aspect of the present invention is a kind of digital television set information accumulation device, include: a CPU; One random access memory is controlled and a set information can be stored in wherein by this CPU; An and nonvolatile memory, include a first area and a second area, control and can be by this CPU the first's information in this set information, from this random access memory unloading in this first area, and by this CPU control and can with this set information from this random access memory unloading in this second area; Wherein this first area of this nonvolatile memory comprises a plurality of storage blocks, when this CPU with this first's information in this set information, during from this random access memory unloading in this first area, deposit that still untapped these store in blocks in this first area in; Wherein this second area of this nonvolatile memory comprises at least one storage block, when this CPU with this set information, during from this random access memory unloading in this second area, arbitrary these that deposit this second area in store in blocks.
Another aspect of the present invention is a kind of digital television information accessing method, be applied on the digital television, this digital television includes a random access memory and a nonvolatile memory, and this method comprises the following step: receive a set information transition information; When this set information transition information shows that only a screen display presetting information produces change, whether a plurality of storage blocks of checking the first area in this nonvolatile memory also have spendable storage block, if have, then this screen display presetting information is stored to wherein and one stores block, if do not have, then this first area in this nonvolatile memory is removed, and this screen display presetting information is stored to after the removing these stores the one of blocks; And show non-ly when having only this screen display presetting information to produce change when this set information transition information, then remove the second area in this nonvolatile memory, and a set information is stored to this second area; Wherein these of this first area in this nonvolatile memory store block, are mainly used in to store this screen display presetting information; Wherein this second area in this nonvolatile memory comprises at least one storage block, is used to store this set information.
In digital television information accessing method, these of this first area store block and also include a sign block, and this sign block can identify the storage block position of this up-to-date screen display presetting information.
Another aspect of the present invention is a kind of digital television information accessing method, be applied on the digital television, this digital television includes a random access memory and a nonvolatile memory, and this method comprises the following step: will be stored in this random access memory in one first received set information of very first time point; Be divided into a plurality of storage blocks with having removed a first area of finishing in this nonvolatile memory, and, store one first the block from this random access memory unloading in these and store block the first's information in this first set information; To be stored in this random access memory in one second received set information of one second time point; And, store one second the block from this random access memory unloading in these and store block the first's information in this second set information.In this digital television information accessing method, this method also comprises the following step: the second area to this nonvolatile memory is removed, and with this first set information from this random access memory unloading in this second area; And this second area of this nonvolatile memory removed, and with this second set information from this random access memory unloading in this second area.
In this digital television information accessing method, the first's information in the first's information in this first set information and this second set information can be a screen display presetting information.
In this digital television information accessing method, these store block and also include a sign block, and it is to be stored in this first storage block or this second storage block that this sign block can identify this screen display presetting information; And this method also comprises the following step: check that these store the storage area of block; And when these storage blocks have not had the storage area, this first area of this nonvolatile memory is removed.
Another aspect of the present invention is a kind of digital television information accessing method, be applied between a digital television main body, a TV signal source and the user's control interface, this digital television main body includes a random access memory and a micro hard disk, and this method comprises the following step: receive a set information transition information of being sent from this TV signal source or this user's control interface; Store a set information in this random access memory; And with this set information from this random access memory unloading in this micro hard disk; Wherein this set information can include a channel information and a screen display presetting information.
Description of drawings
The present invention can obtain more deep understanding via following diagram and explanation:
Fig. 1 is the function block schematic diagram of traditional digital television 100.
Fig. 2 (a) is the applied hardware environment of the inventive method.
Fig. 2 (b) is the schematic diagram of set information 20 and flash memory 152.
Fig. 3 is the flow chart of the present invention's first preferred embodiment.
Fig. 4 is the flow chart of the present invention's second preferred embodiment.
Fig. 5 is the flow chart of the present invention's the 3rd preferred embodiment.
Fig. 6 (a) is for being partitioned into the first area 1521 of flash memory 152 in the schematic diagram of a plurality of storage blocks.
Fig. 6 (b) is the flow chart of the present invention's the 4th preferred embodiment.
And each description of reference numerals in the above-mentioned accompanying drawing is as follows:
100 digital televisions, 101 TV signal source
102 channel selector, 103 demodulator
104 separate multiplexer 111 sound decoders
112 image decoding devices, 113 data decoders
121 graphic process unit, 122 CPU
131 loudspeakers, 132 displays
140 user's control interfaces, 141 remote controllers
142 panel buttons, 150 storage mediums
151 dynamic random access memory, 152 flash memories
153 Electrically Erasable Read Only Memories, 1521 first areas
1522 second areas 1523 the 3rd zone
20 set informations, 21 screen display presetting information
22 channel informations B0～B31 stores block
Embodiment
Digital television information accessing method proposed by the invention, can be applicable to as on digital television of being carried in the prior art shown in Figure 1 100 or the digital television devices of being correlated with, method just of the present invention can be used under existing Digital Television machine technology and its hardware environment, for example be applied between a digital television main body, a TV signal source 101 and the user's control interface 140, this digital television main body has also just comprised the CPU 122 among Fig. 1, dynamic random access memory 151 and flash memory 152.Wherein, flash memory belongs to a kind of nonvolatile memory, and the present invention is except can be applicable to flash memory, and nonvolatile memory in the present invention also can adopt reproducible type CD-R, and preferred embodiment of the present invention is done the embodiment explanation with this flash memory.In addition, employed in the present invention random access memory, we illustrate to carry out the temporary work of its data with this dynamic random access memory 151 at this.
The characteristics of nonvolatile memory do not need to be electric power to keep inner store status, therefore are closed or during power interruptions, wherein recorded data still can intactly be preserved when single unit system, identical service condition can be arranged so that the next time use to be provided.Though, Electrically Erasable Read Only Memory also is a kind of nonvolatile memory, but as described in prior art, has higher cost comparatively speaking because of Electrically Erasable Read Only Memory, therefore in the methods of the invention, we will finish relevant Information Access technology in the mode that does not adopt this Electrically Erasable Read Only Memory.Shown in Fig. 2 (a), be the formant of the applied hardware environment of the inventive method, comprise this CPU 122, dynamic random access memory 151 and flash memory 152.Yet Fig. 1 of other unit or assembly and prior art is identical, but the inventive method does not use this Electrically Erasable Read Only Memory.
See also Fig. 2 (b), in the methods of the invention, the schematic diagram of a set information 20 to be stored and this flash memory 152.From the above, because we do not use this Electrically Erasable Read Only Memory, so one of the inventive method feature and its main concept, be to store user's set information required to this Digital Television with this flash memory 152; With described in the prior art, this set information 20 wherein can include a screen display presetting information 21 and a channel information 22 shown in this Fig. 2 (b).In addition, we can mark off the inner space of this flash memory 152 first area 1521 and a second area 1522, with as the main destination that stores, one the 3rd surplus zone 1523 then can continue writing down the program code execution described in the prior art or claim firmware (Firmware) etc.The storage operation instruction of this first area 1521 and this second area 1522 as after.
Same, applied digital television also includes this user's control interface 140, this digital television main body can receive the set information transition information that this TV signal source 101 or this user's control interface 140 are sent simultaneously, for example: relevant channel information change in the TV signal of being sent by this TV signal source 101, or command information of searching by the channel that this user's control interface 140 is sent, the change of condition enactment or the like.
Described in prior art, this screen display presetting information 21 among the present invention can be the contrast of the show image that utilized 140 pairs of these digital televisions of this user's control interface by the user, brightness, colourity, or the volume of demonstration sound, category of language, or special channel lock, information shows, menu language, sleep regularly, the prescribed situation of the quiet and complete blue picture of no signal, this channel information 22 then can comprise the number that channel that TV signal sends out is arranged, the frequency of channel, the identification code of channel, the channel electronics programme, the programm name of channel, the programme content classification of channel, the platform of channel number, can interactively information etc.
See also Fig. 3, for realizing the implementing procedure figure of its main concept of the present invention.As shown in the figure, in the present invention's first preferred embodiment, at first receive this set information transition information of being sent from this TV signal source 101 or this user's control interface 140, see step S31, and check in this set information transition information by this CPU 122, whether there be the change relevant (for example can comprise that this screen display presetting information 21 is different with previous setting with this set information, or this channel information 22 of being sent upgrades to some extent compared to previous record), see step S32, therefore, as when change, just representative has new set information to produce (for example this set information 20 of Fig. 2 (b)), and record in addition; Then, control and this set information is stored in this dynamic random access memory 151 as temporary by this CPU 122, see step S33, and then this flash memory 152 is removed, and when removing has been finished, control by this CPU 122 again and with this set information 20 from these dynamic random access memory 151 unloadings in this flash memory 152, see step S34.
Therefore, utilize the step shown in the flow chart of above-mentioned Fig. 3, we replace this traditional Electrically Erasable Read Only Memory by just available this flash memory, can finish the record of this set information and the purpose of renewal by other unit when reaching related setting information and changing to some extent, and when not designing this unit of this Electrically Erasable Read Only Memory in the digital television, just can save its production cost and the complexity that reduces circuit design.
Yet, when using this flash memory to carry out information storage, can come slowly compared to traditional Electrically Erasable Read Only Memory on the speed, this is because flash memory can write direct unlike Electrically Erasable Read Only Memory, and just can write again after former data need being removed, so just, can increase the reaction time, for example: when the user changes a demonstration sound setting, may need to wait for after one not short period, could carry out other setting effectively again such as show image or channel selection etc.Therefore, can avoid the problems referred to above when making practical operation, the present invention just proposes following method at the notion of first preferred embodiment following.
See also Fig. 4, be the flow chart of the present invention's second preferred embodiment.As shown in the figure, wherein identical to the step S31 of first preferred embodiment of stage of step S43 and above-mentioned Fig. 3 to step S33 at step S41, and from this step S44, equally this flash memory 152 is removed, but after wherein our design can be sent a clearance order by 122 pairs of these flash memories 152 of this CPU, pre-conditioned and can continue to carry out or finish other work according to one, see step S45, up to meeting this when pre-conditioned, see step S46, just go again to check whether this flash memory 152 finishes removing, see step S47, and when removing when having finished, control by this CPU 122 again and with this set information 20 from these dynamic random access memory 151 unloadings in this flash memory 152, see step S48.
In above-mentioned second preferred embodiment, wherein the pre-conditioned Preset Time that can be of this that is met has arrived, or finished one and preset work, that is to say that we can design a Preset Time, when this clearance order is sent and is removed, this CPU 122 can be carried out other work within this Preset Time, or we can design the default work of one or more numbers, when this clearance order is sent and is removed, after this CPU 122 can be finished the default work of being somebody's turn to do of predetermined quantity earlier, go just to check whether removing work is finished, and the length setting of this Preset Time maybe should default work time of spending possibly of quantity institute, can the amount of commenting conventional art carrying out the required time of clearance order is designed, so that this CPU 122 can be carried out other work simultaneously, for example above-mentioned demonstration sound, the setting of show image or channel selection etc. or other traditional operation are set, thereby allow this CPU 122 can bring into play best usefulness when actual motion.
Further, because this screen display presetting information 21 respectively has different characteristics with this channel information 22, with regard to the demand of physical holding of the stock spatial content, this channel information 22 just than this screen display presetting information 21 many, but this channel information 22 relevant with the channel content of TV signal source upgrading on the frequent degree, just comes frequently not as the user to the setting change that this digital television carries out this screen display presetting information 21.Therefore, when making practical operation, can finish its Information Access purpose effectively at this type of situation, the present invention just proposes following method.
See also Fig. 5, be the flow chart of the present invention's the 3rd preferred embodiment.As shown in the figure, at first, check this set information 20 that is changed, see step S5 by this CPU 122, just check the change situation of this screen display presetting information 21 and this channel information 22, and the information of relevant change is temporary in earlier also in this dynamic random access memory 151.And in this embodiment, we are from first, the step S32 of second embodiment, the stage of S42 begins, just when having the change of generation, set information begins to carry out, therefore, consult this Fig. 2 (b) simultaneously, when the change of this set information 20 is this channel information 22, just this second area 1522 of this flash memory 152 is removed, see step S511, yet, when having only partial information, when just only comprising this screen display presetting information 21 in this embodiment (this channel information 22 does not have change) as if its change, then this first area 1521 of this flash memory 152 is removed, see step S521.
From the above, secondly, to step S513, and step S522 is to step S523 at step S512, then be identical to step S46 with the step S45 of second preferred embodiment of Fig. 4, promptly this CPU 122 still can be carried out the execution of other work simultaneously in the stage of removing; Then, when finish when removing this second area 1522 or this first area 1521, see step S514, S524, then control and respectively with this set information 20 (promptly comprising this screen display presetting information 21 and this channel information 22 simultaneously), this screen display presetting information 21 by this CPU 122, from these dynamic random access memory 151 unloadings in this second area 1522, with this first area 1521 in, see step S515, S525.Therefore just can allow and upgrade this more frequent screen display presetting information 21 when change separately, can individually carry out unloading, make the storage of upgrading to finish fast; And this channel information 22 also can integrally carry out unloading with up-to-date channel information 22 and the screen display presetting information 21 that still is temporary in this dynamic random access memory 151 together when change will be carried out unloading.
The inspection of being carried out for this set information transition information in the various embodiments described above, from the above, when change, just representative has a new set information to produce, further on actual motion, can receive the set information transition information of sending at new time point from this TV signal source 101 or this user's control interface 140, stored its both intercropping of set information have or not the inspection of change before corresponding, for example: the user sends an information when utilizing remote controller 141 to open related menu, menu is after demonstrating previous stored prescribed situation on the display 132, then send another information thereon when a certain function being adjusted again by the user, so difference is therebetween just being represented the situation of change, when variant, representative has relevant set information to be updated.
And in the 3rd preferred embodiment, just go to do to change content inspection why again.When check showing that the information that is changed is relevant with screen display presetting information, just carry out the process of step S521, and work as the information that is changed when relevant with channel information to step S525, then carry out the process of step S511 to step S515.This CPU 122 in addition,, all can be temporary in earlier in this dynamic random access memory 151, so also can check its related content of information of being changed why in this stage in the received different set information of two time points successively.And in the 3rd preferred embodiment further, if when the content of checking change and this screen display presetting information and this channel information are all relevant, then all need carry out the process of step S521 to the process of step S525 and step S511 to step S515.
Therefore, get back to Fig. 2 (b), we just can utilize this first area 1521 to store at changing this more frequent screen display presetting information 21 individually, on the other hand, when this set information 20 of integral body will be upgraded with storage again, also store with regard to available this other second area 1522, and can be the opportunity of its generation after finishing automatic channel search or channel search, need this channel information 22 to be upgraded again and store, or this digital television 100 is when shutting down, and these set information 20 integral body that are temporary in this dynamic random access memory 151 will be by unloading to this flash memory 152; Therefore as can be known, this screen display presetting information 21 that is stored in this first area 1521 is up-to-date setting result, and we can also further design, the up-to-date result of this part can override the part relevant with screen display presetting information to this second area 1522 again when closing machine operation, make when starting shooting next time, just can directly from this second area 1522, grab out this up-to-date and complete set information 20, and its content just still can keep using last time the identical prescribed situation in back.
Yet, with regard to present technology, though we can be divided into this flash memory 152 storage that corresponding informance is finished in a plurality of zones of not waiting, but because there is the regulation of minimized storage space capacity in each zone that is partitioned into, for example: 64KB, we mean when will remove flash memory regional, must be minimum clearing unit with this minimized storage space capacity, even its position is little, but still need the memory space of whole cut zone is removed, therefore, for information (about 2KB) as these screen display presetting information 21 sizes, in the utilization of memory space, inevitably can cause the waste of certain degree, also can increase the storage time simultaneously.Therefore, when making practical operation, can finish the purpose that it saves the storage area at this type of situation effectively, the present invention just proposes following method.
See also Fig. 6 (a), for this first area 1521 of this flash memory 152 being partitioned into the schematic diagram of a plurality of storage blocks, and please consult Fig. 6 (b) simultaneously again, be the notion of application drawing 6 (a), the flow chart of the present invention's the 4th preferred embodiment.Shown in Fig. 6 (a), each zone that we are marked off this flash memory 152, comprise this first area 1521 and this second area 1522 etc., the specification capacity of each memory space is 64KB, we are that a unit is partitioned into a plurality of storage block B0～B31 again with this first area 1521 with 2KB more simultaneously, therefore, this first area 1521 includes 32 little storage blocks altogether.
Therefore, in the middle of the flow chart of Fig. 6 (b), at first, step S6, step S611～S615 is identical with step S5, the step S511～S515 of the 3rd preferred embodiment of Fig. 5; And when the change of this set information 20 has only partial information, when just only comprising this screen display presetting information 21 in this embodiment, these that then check this first area 1521 in this flash memory 152 store block B0～B31 and whether store block in addition and have living space, or check furthermore whether it also has spendable storage block, see step S621, if have, then this screen display presetting information 21 wherein one is stored block from these dynamic random access memory 151 unloadings in this first area 1521 by this CPU 122, see step S626, if do not have, then this first area 1521 is removed, see step S622; And at step S623 to step S624, then be identical to step S46 with the step S45 of second preferred embodiment of Fig. 4; And when removing is finished in this first area 1521, see step S625, just by the one of this CPU 122, see step S626 with these storage blocks B0～B31 of this screen display presetting information 21 from these dynamic random access memory 151 unloadings in this first area 1521.
In this embodiment, these screen display presetting information 21 sizes that we use can not surpass 2KB, therefore, to upgrade be that to store block with one (be that to store block B0～B31) be that unit carries out among Fig. 6 (a) these in the storage that this screen display presetting information 21 is carried out.Further, the storage of being carried out in this first area 1521, depositing these in regular turn in stores among block B0～B31, so just can reach the purpose of effectively utilizing memory space, just, this first area 1521 stores block can writing information the time when still having, just continue then to write, and when no writeable storage block, capable again writing after just whole this first area 1521 being removed.So, except that saving the usage space, just writeable complicated and consuming time shortcoming after also can avoiding each storage more new element all need being removed earlier reduces the time that operation consumes effectively.In this embodiment, we can be to 32 after these store blocks and all finish the renewal of this screen display presetting information 21 and store, and together this first area 1521 removed to get final product again.
Therefore, these store block B0～B31 and are used to store this screen display presetting information 21, and on actual motion, we can store one of them block and be designed to a sign block, for example: store block B0, this screen display presetting information 21 then uses these to store block B1 in regular turn, B2, to such an extent as to B3 stores block B31 to store, therefore, the function of this sign block (promptly should store block B0), be that to be used for identifying stored this up-to-date screen display presetting information 21 be in which stores block, so when follow-up when having updated information to deposit in, just according to the sign of this sign block, write from the next one of this storages block position storage block, and will read the time, also be the sign according to this sign block, read to this storage block.
In addition, we also can further cut apart this second area 1522, make this second area 1522 comprise at least one or more a plurality of storage block, are used to store this set information 20.It is fashionable when the space of this set information 20 size to be that the space size of the storage block that is partitioned into can be write, and so just can effectively utilize the space of this second area 1522 and reduce consuming time; Then the notion with the 4th preferred embodiment is identical for relevant flow process.
Random access memory in the present invention, we illustrate to carry out the temporary work of its data with dynamic random access memory (DRAM), yet technology also can be used in static RAM (SRAM) and high-speed cache (cache) in the general computer system at present, therefore also it can be used in digital television.With this Fig. 1, static RAM can be finished in the inside of this CPU 122 or with it with high-speed cache (not being shown in diagram) and be connected as signal, and all can carry out the operation function of this dynamic random access memory 151, and also more can effectively promote its access efficiency.Therefore, when applied digital television or relevant device have above-mentioned static RAM or high-speed cache, notion then of the present invention and method also may be implemented on it, just utilize static RAM or high-speed cache to carry out the temporary of data.
In addition, the present invention reaches the purpose of information storage with the flash memory of nonvolatile memory.Yet except flash memory, with regard to the digital television of present technology, also can design a micro hard disk (microdrive) and come storage data, equally also can the related setting information of storage required for the present invention have been stored.Though micro hard disk also is a kind of of nonvolatile memory, its access mode is identical with Electrically Erasable Read Only Memory, and the action that does not just need to remove just can be write direct; Therefore, when we will be applied to the inventive method to have the digital television of micro hard disk, with regard to the foregoing description, except wherein said all remove action or correlation step need not carry out, other implementation method then all is identical.Therefore, at different application hardware environment, disclosed notion all can successfully be reached.
In sum, utilize the flash memory in inventive method of the present invention and the traditional digital television, just can under the situation that does not use Electrically Erasable Read Only Memory, finish the storage process of related setting information, thereby can reach effective cost-effective purpose.In addition, at characteristic or the defective that flash memory had, the notion of utilizing inventive method of the present invention and the internal storage space of this flash memory being cut apart except can reducing operation consuming time effectively, can also be avoided the waste of its memory space; Therefore, the present invention can solve the problem that prior art proposes, and has successfully reached the main purpose of the present invention's development.
The present invention can be revised arbitrarily and be modified by one skilled in the art, does not so break away from as the claimed scope of claims.
Claims (20)
1. digital television information accessing method, be applied between a digital television main body, a TV signal source and the user's control interface, this digital television main body includes a random access memory and a nonvolatile memory, and this method comprises the following step:
The set information transition information that reception is sent from this TV signal source or this user's control interface;
Store a set information in this random access memory;
Remove this nonvolatile memory; And
When this nonvolatile memory has been finished when removing, with this set information from this random access memory unloading in this nonvolatile memory;
Wherein this set information includes a channel information and a screen display presetting information.
2. digital television information accessing method as claimed in claim 1, wherein this method also comprises the following step:
After this nonvolatile memory sent a clearance order, continue to carry out other work,, go again to check whether this nonvolatile memory finishes removing up to meeting one when pre-conditioned;
Wherein this that is met is pre-conditioned is that a Preset Time has arrived, or has finished a default job.
3. digital television information accessing method as claimed in claim 1, the wherein command information searched of the channel sent for this user's control interface of this set information transition information.
4. digital television information accessing method as claimed in claim 1, wherein this nonvolatile memory includes a first area and a second area, and this method also comprises the following step:
With the screen display presetting information in this set information, this first area from this random access memory unloading in this nonvolatile memory; And
With this set information this second area from this random access memory unloading in this nonvolatile memory.
5. a digital television devices includes a digital television main body, and this digital television main body includes:
One CPU;
One random access memory is controlled and a set information can be stored in wherein by this CPU; And
One nonvolatile memory, include a first area and a second area, control and can be by this CPU the first's information in this set information, from this random access memory unloading in this first area, and by this CPU control and can with this set information from this random access memory unloading in this second area.
6. digital television devices as claimed in claim 5, wherein this nonvolatile memory is a flash memory or a reproducible type CD-R.
7. digital television devices as claimed in claim 5, wherein this digital television devices also includes user's control interface, and this digital television main body receives the set information transition information that a TV signal source or this user's control interface are sent; Wherein this set information includes a channel information and a screen display presetting information.
8. digital television devices as claimed in claim 7, wherein this channel information includes the information of programm name of identification code, the channel of frequency, the channel of channel at least.
9. digital television devices as claimed in claim 7, wherein this screen display presetting information is this first's information, include the user and utilize contrast, brightness, the colourity of this user's control interface, or show the prescribed situation of the volume of sound the show image of this digital television main body.
10. digital television includes:
One CPU;
One random access memory is controlled and a set information can be stored in wherein by this CPU; And
One nonvolatile memory, by this CPU control and can with this set information from this random access memory unloading in this nonvolatile memory;
After wherein this CPU is sent a clearance order to this nonvolatile memory, continue to carry out other work, finished when removing up to this nonvolatile memory, just with this set information from this random access memory unloading in this nonvolatile memory;
Wherein this set information includes a channel information and a screen display presetting information.
11. digital television information accessing method, be applied between a digital television main body, a TV signal source and the user's control interface, this digital television main body includes a CPU, a random access memory and a nonvolatile memory, and this method comprises the following step:
The one first set information transition information that reception is sent from this TV signal source or this user's control interface;
This CPU is stored in a set information in this random access memory; And
This nonvolatile memory is removed, and by this CPU with the first's information in this set information, the first area from this random access memory unloading in this nonvolatile memory, and with the second area of this set information from this random access memory unloading in this nonvolatile memory.
12. digital television information accessing method as claimed in claim 11, wherein this method also comprises the following step:
The one second set information transition information that reception is sent from this TV signal source or this user's control interface;
When this second set information transition information shows that this first's information in this set information only produces change, by this CPU with this first's information in this set information, this first area from this random access memory unloading in this nonvolatile memory; And
When this second set information transition information show non-when having only this first's information in this set information to produce change, then by this CPU with this set information this second area from this random access memory unloading in this nonvolatile memory.
13. a digital television set information accumulation device includes:
One CPU;
One random access memory is controlled and a set information can be stored in wherein by this CPU; And
One nonvolatile memory, include a first area and a second area, control and can be by this CPU the first's information in this set information, from this random access memory unloading in this first area, and by this CPU control and can with this set information from this random access memory unloading in this second area;
Wherein this first area of this nonvolatile memory comprises a plurality of storage blocks, when this CPU with this first's information in this set information, during from this random access memory unloading in this first area, deposit that still untapped these store in blocks in this first area in;
Wherein this second area of this nonvolatile memory comprises at least one storage block, when this CPU with this set information, during from this random access memory unloading in this second area, arbitrary these that deposit this second area in store in blocks.
14. a digital television information accessing method is applied on the digital television, this digital television includes a random access memory and a nonvolatile memory, and this method comprises the following step:
Receive a set information transition information;
When this set information transition information shows that only a screen display presetting information produces change, whether a plurality of storage blocks of checking the first area in this nonvolatile memory also have spendable storage block, if have, then this screen display presetting information is stored to wherein and one stores block, if do not have, then this first area in this nonvolatile memory is removed, and this screen display presetting information is stored to after the removing these stores the one of blocks; And
When this set information transition information shows non-ly when having only this screen display presetting information to produce change, then remove the second area in this nonvolatile memory, and a set information is stored to this second area; Wherein these of this first area in this nonvolatile memory store block, are mainly used in to store this screen display presetting information;
Wherein this second area in this nonvolatile memory comprises at least one storage block, is used to store this set information.
15. digital television information accessing method as claimed in claim 14, wherein these storage blocks of this first area also include a sign block, and this sign block can identify the storage block position of this up-to-date screen display presetting information.
16. a digital television information accessing method is applied on the digital television, this digital television includes a random access memory and a nonvolatile memory, and this method comprises the following step:
To be stored in this random access memory in one first received set information of very first time point;
Be divided into a plurality of storage blocks with having removed a first area of finishing in this nonvolatile memory, and, store one first the block from this random access memory unloading in these and store block the first's information in this first set information;
To be stored in this random access memory in one second received set information of one second time point; And
With the first's information in this second set information, store one second the block from this random access memory unloading in these and store block.
17. digital television information accessing method as claimed in claim 16, wherein this method also comprises the following step:
Second area to this nonvolatile memory is removed, and with this first set information from this random access memory unloading in this second area; And
This second area to this nonvolatile memory is removed, and with this second set information from this random access memory unloading in this second area.
18. digital television information accessing method as claimed in claim 16, wherein first's information in this first set information and the first's information in this second set information are a screen display presetting information.
19. digital television information accessing method as claimed in claim 18, wherein these storage blocks also include a sign block, and it is to be stored in this first storage block or this second storage block that this tag slot block identification goes out this screen display presetting information; And this method also comprises the following step:
Check that these store the storage area of block; And
When these storage blocks have not had the storage area, this first area of this nonvolatile memory is removed.
20. a digital television information accessing method is applied between a digital television main body, a TV signal source and the user's control interface, this digital television main body includes a random access memory and a micro hard disk, and this method comprises the following step:
The set information transition information that reception is sent from this TV signal source or this user's control interface;
Store a set information in this random access memory; And
With this set information from this random access memory unloading in this micro hard disk;
Wherein this set information includes a channel information and a screen display presetting information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101851824A CN100559831C (en) | 2007-11-01 | 2007-11-01 | Digital television set information accumulation device and digital television information accessing method |
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| CNB2007101851824A CN100559831C (en) | 2007-11-01 | 2007-11-01 | Digital television set information accumulation device and digital television information accessing method |
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| CN2009102118399A Division CN101695106B (en) | 2007-11-01 | 2007-11-01 | Digital television set information processing device and digital television information accessing method |
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| CN100559831C true CN100559831C (en) | 2009-11-11 |
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| CN101753918B (en) * | 2008-12-03 | 2012-02-01 | 深圳Tcl新技术有限公司 | Television reception device and channel changing method thereof |
| JP2010288117A (en) * | 2009-06-12 | 2010-12-24 | Sharp Corp | Screen data transmitting terminal, screen data receiving terminal, screen data transmission system, screen data transmitting program, screen data receiving program, screen data transmitting method and screen data receiving method |
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Effective date of registration: 20191223 Address after: No.1, Duhang 1st Road, Hsinchu City, Hsinchu Science Park, Taiwan, China Patentee after: MediaTek.Inc Address before: Hsinchu County, Taiwan, China Patentee before: MStar Semiconductor Co., Ltd. |