CN100401750C - Caption coding device - Google Patents
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- CN100401750C CN100401750C CNB2004100020266A CN200410002026A CN100401750C CN 100401750 C CN100401750 C CN 100401750C CN B2004100020266 A CNB2004100020266 A CN B2004100020266A CN 200410002026 A CN200410002026 A CN 200410002026A CN 100401750 C CN100401750 C CN 100401750C
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Abstract
The present invention relates to a caption encoding apparatus which makes a television broadcast apparatus utilize bitmaps to support caption display containing infrequent Chinese characters. The present invention detects Chinese characters which are not supported by DTV (digital television) IRD (integrated receiver and decoder). When the present invention recognizes an unsupported character, a bitmap is generated, and takes the place of the unsupported character. Similarly, the position of the bitmap object is calculated so as to display the bitmap object which has the character object in a seamless mode. Characters supported by the DTV IRD are transmitted to the DTV IRD in a character mode. The present invention transmits characters and bitmaps in this way. The DTV IRD can display all Chinese characters to a television screen, and does not waste too much bandwidth.
Description
Technical field
The basic stream (Packetized Elementary Stream) that the present invention relates to a kind of captions packetized is code device (PES), it is applied to adopt the television broadcasting end or the TV station of digital video broadcasting (DVB) captions standard, and especially in order to support Digital Television (DTV) integrated receiver decoder, to show the rare Chinese character that is not comprised in the fontlib that is embedded within the IRD internal memory.
Background technology
The DVB specification has defined and has transmitted captions, sign and other drawing composition in the method for the broadcast singal of Digital Television.Captions are a kind of services, and it is presented at actor and actress's the dialogue form with character on the video screen.
The DVB captions are since 1997 implement, the technology that produces captions PES is quite ripe, many equipment persons have produced fully the captions decoder of observing DVB captions specification, and these products comprise according to Softel limited " Swift TX ", according to " Polistream " of screen caption system and according to a succession of captions product of Cavena audio and video products.Because originally DVB is the usefulness that is designed to European DTV standard, so when it adopted in other area, it may comprise the obstacle as illustrated after a while beyong contemplation.
The captions service to be implemented in the country that utilizes alphabetic literal to be made up of the letter of limited quantity as the language of the character of language be quite simple.For example, any English character is synthetic from the selected character of 26 English alphabets, and any German character is synthetic from the selected character of 30 German letters.Therefore, support Digital Television (DTV) the integrated receiver encoder (IRD) of English subtitles only must be equipped with the fontlib that comprises 26 English alphabets.Yet, can't help the language that alphabetic literal forms for its character system, for example, traditional Chinese, simplified form of Chinese Character, japanese character and Korean, the quantity of character is actually unconfined.Therefore, can not be equipped with the fontlib that comprises all characters for DTV IRD.Therefore, when DTV IRD receives the captions PES of the character that delivery do not supported by this DTV IRD problem generation.This DTV IRD can not find correct character setting of this DTV IRD in the fontlib, so that this character is presented at video screen.
Commercial captions encoding device such as " the Swift TX " by the limited manufacturing of Softel, provides its function to contain all caption characters in bitmap and only produce the subtitle bitmap object part to the caption object part.The method also can solve above-mentioned rare character problem, has but wasted transmission bandwidth.
Summary of the invention
Main purpose of the present invention provides a kind of captions code device, it utilizes subtitle bitmap object part technology to support to show rare Chinese character via DTV IRD on video screen, and the captions data is stored in the external subtitle database that is arranged with this captions code device branch.Necessary condition of the present invention is that these captions PES code device has the relevant detailed knowledge that is used in the Chinese font storehouse of this DTV IRD, and therefore can accurately calculate the size of the Chinese character when they are displayed on video screen.
In order to overcome the problems referred to above, according to an aspect of the present invention, a kind of captions code device is provided, it adopts digital video broadcasting captions standard to show the rare Chinese character that is not contained in the font that is embedded within the integrated receiver decoder memory in order to support Digital Television integrated receiver decoder to be applied to the television broadcasting end, this captions code device includes: the Chinese character sign indicating number library unit of Digital Television integrated receiver decoder is supported and the Chinese character that is not supported with identification in order to information to be provided, and in order to the size of the Chinese character string of Chinese character information to calculate the Chinese character supported by Digital Television integrated receiver decoder and formed to be provided; Rare Chinese font library unit is drawn in the size of on the screen, also calculating the bitmap that is produced in order to Chinese character information to be provided so that with this Chinese character; The captions page or leaf is fetched the unit, in order to fetch the display position that one page comprises captions data, duration, color look-up table information, area information and every page of caption character of caption character and presentative time; Pulse unit, in order to the tracking time to fetch elements reference as system time by this captions page or leaf; Captions part generation unit, it is received from this captions page or leaf the data of unit and the information that is provided according to the Chinese character sign indicating number library unit of this Digital Television integrated receiver decoder and this rare Chinese font library unit is provided, and produces captions character object part and subtitle bitmap object part then and calculates caption area part, and the captions page or leaf part that delivers page information of each object's position, captions color look-up table part, delivery area information; And the basic stream generation unit of captions packetized, its caption area part in conjunction with captions character object part, subtitle bitmap object part, captions color look-up table part, delivery area information, and the captions page or leaf part of delivery page information are so and produce the head of failing to be sold at auction substantially of captions packetized.
According to DVB captions specification, captions PES partly is made up of page or leaf part, area part, CLUT part, character object part and bitmap object.The captions page or leaf can comprise more than one zone, and a caption area can comprise more than one color look-up table and caption object.The objective of the invention is to television station broadcast, the captions data of being made up of Chinese character is shown to the televiewer.Device of the present invention will detect rare character, and be the character of not supported by this DTV IRD and will produce the subtitle bitmap object to replace these rare characters before being sent to this DTV IRD when this character.
The caption character of a TV programme is made up of many page or leaf literal, and every page of literal will be displayed on the presentative time of an appointment by concrete appointment.Usually, one page caption character will comprise only delegation's caption character, still, decide on this TV programme; One page caption character is the above caption character of delegation originally, and it is displayed on the video screen simultaneously.These style of writing words are specified the caption character that belongs to same page and will be produced to identical captions PES.
Description of drawings
Fig. 1 is the system block diagram of the preferred embodiment of captions code device according to the present invention;
Fig. 2 is the operational flowchart of this captions code device;
Fig. 3 is the operational flowchart of this captions part generation unit;
Fig. 4 is the operational flowchart of the step S102 among Fig. 3;
Fig. 5 is the video screen of an emulation, and it has shown by two character objects and two captions that bitmap object is formed;
Fig. 6 is explanation by being presented on the video screen with the character object of character object before bitmap and the schematic diagram of the position calculation of the captions formed of bitmap object;
Fig. 7 is explanation by being presented on the video screen with the character object of bitmap object before character object and the schematic diagram of the position calculation of the captions formed of bitmap object;
Fig. 8 is the video screen of an emulation, and it has shown by two character objects and two vertical-type captions that bitmap object is formed;
Fig. 9 is explanation by being presented on the video screen with the character object of character object before bitmap and the schematic diagram of the position calculation of the vertical-type captions formed of bitmap object;
Figure 10 is explanation by being presented on the video screen with the character object of bitmap object before character object and the schematic diagram of the position calculation of the vertical-type captions formed of bitmap object;
Figure 11 is the block diagram that expression is divided into the captions part generation unit of four sub-generation units;
Figure 12 is the profile of explanation DTV IRD Chinese character sign indicating number library unit, and it stores the schematic diagram by the Big-5 sign indicating number of each Chinese character that this DTVIRD supported;
Figure 13 is the profile of explanation DTV IRD Chinese character sign indicating number library unit, and it stores not the Big-5 sign indicating number of each Chinese character of being supported by this DTVIRD and the schematic diagram of bitmap byte; With
Figure 14 is the schematic diagram of the bitmap structure of explanation Chinese character " Wen ".
Embodiment
Fig. 1 is the system block diagram of the preferred embodiment of captions code device of the present invention, together with an external subtitle database.In Fig. 1, reference number 1 this captions code device of expression is in order to produce the PES package of captions according to DVB captions specification, external subtitle database 2 stores the captions data of TV programme, and it comprises the display position of caption character, presentative time, duration, CLUT (color search table) information, area information and every page of caption character.The caption character of TV programme is often edited by some professional caption character editing devices, and this editor's captions data often is stored in the database 2 that separates with this captions code device 1, and the captions data editing and processing of TV programme must be finished before this TV programme begins.With reference to figure 1, this captions code device 1 comprises with the lower part again:
Numeral 11 expression DTV IRD Chinese character sign indicating number library units, in order to storing Chinese character code data as this DTV IRD, 11 skeleton diagram as shown in figure 12, it comprises the binding table of Big-5 sign indicating number;
The rare Chinese font library unit of numeral 12 expressions, in order to storing rare Chinese font data, 12 skeleton diagram as shown in figure 13, it comprises the binding table of Big-5 sign indicating number and bitmap byte;
Numeral 13 expression captions pages or leaves are fetched the unit, and it fetches the captions data from this external subtitle database 2;
Numeral 14 indicating impulse unit, its tracing system time;
Numeral 15 expression captions part generation units, in order to generation captions character object part, subtitle bitmap object part, captions CLUT part, caption area part and captions page or leaf part, and the calculating object position;
Numeral 16 expression captions PES generation units are in order to produce these captions PES.
Fig. 2 has described the operating process of captions code device 1.
With reference to figure 2, when the encoding process of this captions code device 1 begins, at step S001, this captions page or leaf is fetched unit 13 and is utilized this external subtitle database 2 of the captions data that some professional captions data editors are edited to fetch the captions data from storing the user.This captions page or leaf is fetched the presentative time information that the data of at first fetching unit 13 only is this first captions page or leaf.At step S002, this captions page or leaf is fetched unit 13 and is indicated this first page as this wait page or leaf, and it is to comprise at the page or leaf of fetching the caption character that action is retrieved from this external subtitle database 2 subsequently.At step S003, this captions page or leaf is provided by the unit 13 relatively presentative time and the system time that is provided by pulse unit 14 of the wait page or leaf of caption character, if it is sent in first page of caption character just, at step S004, this captions page or leaf is fetched unit 13 will fetch the caption character of waiting for page or leaf from this external subtitle database 2 then.At step S005, this captions page or leaf is fetched unit 13 and then the caption information of relevant this page caption character is sent to this captions part generation unit 15.At step S006, this captions part generation unit 15 utilizes to be fetched the information that unit 13 received from this captions page or leaf and produces the captions part, it comprises caption object part, captions CLUT part, caption area part and captions page or leaf part, and then the captions that produced partly is sent to captions PES generation unit 16.This captions part generation unit 15 produces four kinds of captions parts, and it comprises caption object part, captions CLUT part, caption area part and captions page or leaf part.And this caption object part can also be categorized into captions character object part and subtitle bitmap object part.Fig. 3 illustrates that the operating process of this captions part generation unit 15 also will be in paragraph explanation after a while.
At step S007, these captions PES generation unit 16 partly produces captions PES from the captions that it receives, and at step S008, these captions PES generation unit 16 exports the captions PES that is produced in the broadcasting station multiplexer.
At step S009, this captions page or leaf is fetched unit 13 and is checked in this external subtitle database 2 whether any how available caption character is arranged.If then stay in the external subtitle database without any caption character, this captions code device 1 will stop its operation.If available caption character is arranged, then at step S010, this captions page or leaf is fetched unit 13 will fetch the presentative time of this time one page caption character from this external subtitle database 2.At step S011, this captions page or leaf is fetched unit 13 and is indicated this time one page and then will be retrieved as its caption character of this wait page or leaf.This operation is got back to S003 and is waited for that this presentative time is to fetch the literal of this wait page or leaf then.
The processing of repetition between the step S003 to S011 that waits for, fetches, produces and export all fetched from this external subtitle database 2 up to all caption characters of TV programme.
Fig. 3 describes the operating process of this captions part generation unit 15.At step S101, the operation of this captions part generation unit 15 from it when this captions page or leaf is fetched unit 13 and is received one page caption characters.At step S102, this captions part generation unit 15 is by producing the caption object part with reference to the character information in this DTV IRD Chinese character sign indicating number library unit 11 and this rare Chinese character fontlib unit 12, and it comprises character object and bitmap object.This captions part generation unit 15 is calculating location information after it produces this caption object part also.The details that caption object produce to be handled, step S102 describes in Fig. 4, and is explained in paragraph after a while.At step S103, this captions part generation unit 15 produces the caption area part according to the positional information of object with the area information of fetching unit 13 from this captions page or leaf.At step S104, this captions part generation unit 15 produces according to the captions CLUT part of fetching this CLUT information of unit 13 from this captions page or leaf.At step S105, this captions part generation unit 15 produces the captions page or leaf part of fetching the page information of unit 13 according to from this captions page or leaf.At step S106, this captions part generation unit 15 partly is sent to these captions PES generation unit 16 with the captions that it produced then.
Fig. 4 illustrates in greater detail the step S102 of Fig. 3.When step S102 began, this captions part generation unit 15 was received from one page caption character that this captions page or leaf is fetched unit 13, and this captions part generation unit 15 will be handled this page caption character one next character.At step S1021, this captions part generation unit 15 tries to select next processing character.At step S1022, this captions part generation unit 15 will determine that whether all characters of this page caption character are processed.If still have character not processed, the selected and operation of character late means to step S1023 then.At step S1023, this captions part generation unit 15 tries to search selected character in this DTV IRD Chinese character sign indicating number library unit 11.Figure 12 shows the structure of this DTV IRD Chinese character sign indicating number library unit 11, and it comprises the binding table of Big-5 sign indicating number basically.Per two byte Big-5 sign indicating numbers of corresponding special Chinese character are that DTV IRD supports, and according to the manipulation via the table of Big-5 sign indicating number, this captions part generation unit 15 knows whether that character system is supported by a DTV IRD.If at step S1024, the search of this character is successful, and this operation means that to step S1025 it adds to this character object buffer with this character.If at step S1024, the search of this character is failed, and this operation means that to step S1026, it adds to this bitmap object buffer with this character.After the processing of step S1025 or step S1026, step S1021 is got back in this operation, and it selects the character late of this page caption character to handle.
Repeat the step between the S1021 to S1026, processed and be added to character object buffer or bitmap object buffer up to all characters of this page caption character.When this takes place, at step S1022 that all characters that are found that this page caption character are processed, and operation is with directed step S1027.
At step S1027, this captions part generation unit 15 produces the character object part of the character that is present in this character object buffer and produces the bitmap object part of the character that is present in this bitmap object buffer.When producing the subtitle bitmap object part, the character bitmap information that this captions part generation unit 15 needs reference to be provided by this rare Chinese font library unit 12.Figure 13 shows the data structure of this rare Chinese font library unit 12, and it comprises the binding table and the bitmap byte of Big-5 sign indicating number basically.Illustrate at the Chinese character of this rare Chinese font library unit 12 binary data by 74 bytes.The Big-5 sign indicating number that these preceding two bytes are these characters, and 72 bytes subsequently illustrate the bitmap of this rare Chinese character.According to manipulation via the Big-5 code table in this rare Chinese font library unit 12, this captions part generation unit 15 can find the rare Chinese character of this correspondence this group bitmap byte, therefore and produce a bitmap.Figure 14 illustrates the graphic example of the bitmap of the rare Chinese character " Wen " with this Big-5 sign indicating number " FA41 ".As the bitmap byte that is described in each Chinese character of this rare Chinese font library unit 12 is one group of 72 bitmap byte, each of each byte represented the state of describing of a pixel, one value is ' 0 ' or ' 1 ', means according to ' 1 ' that this pixel should be described and ' 0 ' mean this pixel and should do not described when this captions part generation unit 15 produces a bitmap.Three bytes at first in this 72 bitmap byte have totally 24 its represent then 3 bytes of 24 pixels of article one line of bitmap and this bitmap to represent the next line of this bitmap, or the like.Therefore, the bitmap byte part structure one 24 pixel x24 bitmap of pixels of this 72 byte.For example, the the 4th, the 5 and the 6th byte of the bitmap byte of this character is respectively 0x00,0xF0 and 0x04, and it only means the the the 9th, the 10, the 11st, the 12 and the 22nd pixel and should be described when this bitmap system is produced by this captions part generation unit 15.Adopt this rule, this captions part generation unit 15 can produce a bitmap of rare Chinese character, and therefore produces the subtitle bitmap object part of this rare Chinese character.
At step S1028, this captions part generation unit 15 will be according to the width of this first specified position, each character object and bitmap object and the position of highly calculating each character object and bitmap object.Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10 illustrate example that several object's positions calculate and will be described in more detail at paragraph after a while.When step S1028 finishes (step S102 also finishes), the step S103 of this operating process in Fig. 3, and this captions part generation unit 15 continues the processing that it produces other captions part.
In the position calculation of the character object of the step S1028 of Fig. 4 and bitmap object by illustrating as Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and example shown in Figure 10.Following paragraph illustrates that these are graphic.
Fig. 5 shows the video screen of an emulation, and it shows by two character objects and two delegation's caption characters that bitmap object is formed.Have 14 Chinese characters at this journey captions (comprising punctuation mark), among these 14 Chinese characters, the 6th character " fluffy " and the 4th character " Wen " are few usefulness, therefore, justifiable to be a DTV IRD will not comprise this two characters in it is embedded at its fontlib of limited memory resource.For 5 characters at first of being supported by this DTV IRD, captions code device 1 of the present invention produces their character object, for the 6th character of not supported by this DTV IRD, captions code device 1 of the present invention produces its bitmap object then.Then, for seven characters then between 13 characters of the 7th character to the, being supported by this DTV IRD, captions code device 1 of the present invention produces their second character object, for the last character of not supported by this DTV IRD, captions code device 1 of the present invention produces its second bitmap object then.And because careful position of calculating these two character objects and these two bitmap objects, when this DTV IRD does not comprise these two rare Chinese characters, this DTV IRD can show that captions are capable on the tram of video screen.
The position calculation of Fig. 6 explanation these objects when a bitmap object is followed a character object.The position of this bitmap object is the width sum that the horizontal level of this character object adds this character object.For example, at Fig. 6 (A), this first caption object be a character object its formed " the last character is a bitmap " by nine characters, and the position of this first character object system by the identification of its upper left corner as:
x＝228，y＝493
Wherein x is the left drift angle of character object and the distance between the screen left border, and y is the distance between the apical margin of the left drift angle of this character object and this screen.
The width of this first character object is:
w＝226，
Positional value is specified by the user of this caption character of editor, and sizes values is calculated according to the information that this DTV IRD Chinese character sign indicating number library unit 11 is provided in Fig. 1.
In Fig. 6 (B), the position of this bitmap object system is calculated according to size and the position about this character object before it, the x of bitmap object, and the calculating of y value is adopted:
The w of the x+ character object of the x=character object of bitmap object,
The y of the y=character object of bitmap object,
Therefore, the position of bitmap object is:
x＝228+226＝454，
y＝493。
The position calculation of these objects of Fig. 7 explanation when a bitmap object is followed by a character object.The horizontal level of this character object is the width sum that the horizontal level of this bitmap object adds this bitmap object.For example, in Fig. 7 (A), this first caption object is a bitmap object, and it only is made up of a character " fluffy ", and the position of this first bitmap object by the identification of its upper left corner as:
x＝228，y＝493
Wherein x is the left drift angle of bitmap object and the distance between the screen left border, and y is the distance between the apical margin of the left drift angle of this bitmap object and this screen.
The width of this first bitmap object is:
w＝26，
Positional value be by the user of this caption character of editor specified, and width value is to calculate according to the information that this rare Chinese font sign indicating number library unit 12 among Fig. 1 is provided.
In Fig. 7 (B), the position of this character object system is calculated as size and the position about this bitmap object before it, the x of character object, and the calculating of y value is adopted:
The w of the x+ bitmap object of the x=bitmap object of character object,
The y of the y=bitmap object of character object,
Therefore, the position of bitmap object is:
x＝254，
y＝493。
In view of top description, the present invention has the following advantages:
Captions code device of the present invention can support the demonstration of rare Chinese character on video screen via a DTV IRD, need not require this DTV IRD to set the fontlib that comprises these rare Chinese characters.And only by the subtitle bitmap object that produces rare Chinese character, in the increase in the use of transmission bandwidth less than the increase of using by the transmission bandwidth that method caused of the subtitle bitmap object of the character that produces all caption characters.
This above-mentioned captions code device is absorbed at generation captions PES, and it shows the caption character of horizontal direction on this video screen.Along with different structure, this captions code device can be supported in the demonstration of the rare Chinese character of vertical direction on this video screen via DTVIRD shown in Figure 8.
Fig. 8 shows appearance within the caption character that is entirely identical to Fig. 5 and shows in vertical direction.
The position calculation of the object of vertical-type captions when Fig. 9 explanation is followed a character object when bitmap object system.The upright position of this bitmap object is the height sum that the upright position of this character object adds this character object.For example, in Fig. 9 (A), this first caption object is a character object, and it is formed " the last character is a bitmap " by nine characters, and the position of this first character object system by the identification of its top-left coordinates as:
x＝30， y＝59
Wherein x is the left drift angle of character object and the distance between the screen left border, and y is the distance between the apical margin of the left drift angle of this character object and this screen.
The height of this first character object is:
h＝242，
Positional value is specified by the user of this caption character of editor, and height value calculates according to the information that this DTV IRD Chinese character sign indicating number library unit 11 among Fig. 1 is provided.
In Fig. 9 (B), the position of this bitmap object is to calculate according to size and the position about this character object before it, the x of bitmap object, and the calculating of y value is adopted:
The x of the x=character object of bitmap object,
The h of the y+ character object of the y=character object of bitmap object,
Therefore, the position of bitmap object is:
x＝30，
y＝59+242＝301。
The position calculation of the object of the vertical-type captions of Figure 10 explanation when a bitmap object is followed by a character object.The upright position of this character object is the height sum that the upright position of this bitmap object adds this bitmap object.For example, in Figure 10 (A), this first caption object is a bitmap object, and it only is made up of a character " fluffy ", and the position of this first bitmap object by the identification of its upper left corner as:
x＝30，y＝59
Wherein x is the left drift angle of bitmap object and the distance between the screen left border, and y is the distance between the apical margin of the left drift angle of this bitmap object and this screen.
The height of this first bitmap object is:
w＝26，
Positional value is specified by the user of this caption character of editor, and height value calculates according to the information that this rare Chinese font sign indicating number library unit 12 among Fig. 1 is provided.
At Figure 10 (B), calculate as size and the position about this bitmap object before it position of this character object, the x of character object, and the calculating of y value is adopted:
The x of the x=bitmap object of character object,
The h of the y+ bitmap object of the y=bitmap object of character object,
Therefore, the position of bitmap object is:
x＝30，
y＝59+26＝85。
For the generation of captions part is provided, this captions part generation unit 15 can further be divided into four subelements according to difference in functionality, as shown in figure 11, i.e. caption object generation unit 151, caption area generation unit 152, captions CLUT generation unit 153 and captions page or leaf generation unit 154.
This caption object generation unit 151 be received from this captions page or leaf fetch the Word message of the caption character page or leaf of unit 13, produce captions character object and bitmap part, calculate each character object and bitmap object positional information, the captions character object that is produced partly partly is sent to these captions PES generation unit 16 and the positional information that is calculated is sent to this caption area generation unit 152 with subtitle bitmap.
This caption area generation unit 152 be received from this captions page or leaf fetch the area information of the caption character page or leaf of unit 13, be received from these captions character objects of this caption object generation unit 151 and bitmap object positional information, produce the caption area part and the caption area that is produced partly be sent to these captions PES generation unit 16.
These captions CLUT generation unit 153 is received from this captions page or leaf and fetches the CLUT information of the caption character page or leaf of unit 13, produces captions CLUT part, also then the captions CLUT that is produced partly is sent to these captions PES generation unit 16.
This captions page or leaf generation unit 154 is received from this captions page or leaf and fetches the page information of the caption character page or leaf of unit 13, produces captions page or leaf part, also then the captions page or leaf that is produced partly is sent to these captions PES generation unit 16.
Though this invention is to want to solve on TV the problem that shows in fact endless Chinese character, same mechanism can be used in other Languages, and it is made up of letter institute from unit is same non-, and so has endless character.
For example, the Chinese character system that is stored in this DTV IRD Chinese character sign indicating number library unit 11 and this rare Chinese font library unit 12 is used for the tradition Chinese character character, and equally also is applied to the simplified Hanzi character.By replacing this DTV IRD Chinese character sign indicating number library unit 11 with a DTV IRD simplified Hanzi character code library unit and replace this rare Chinese font library unit 12 with a rare simplified form of Chinese Character fontlib unit, this captions code device can be supported the demonstration of the rare simplified Hanzi character of caption character.
Similarly, by replacing this DTV IRD Chinese character sign indicating number library unit 11 with a DTV IRD japanese character character code library unit and replace this rare Chinese font library unit 12 with a rare japanese character fontlib unit, this captions code device will be supported the demonstration of rare japanese character character caption literal.
And by replacing this DTV IRD Chinese character sign indicating number library unit 11 with a DTV IRD Korea character sign indicating number library unit and replace this rare Chinese font library unit 12 with fontlib unit, a rare Korean, this captions code device can be supported the demonstration of the rare Korean character of caption character.
Except the character of anyone speech like sound, the captions of TV language also can show some additional characters, and the present invention also can be used to the special symbol character of encoding, for example, and Greek character " α ", " β ", " Θ ", "
" and even other spcial character picture " ♂ ", " ♀ " reach " ℃ ", need only corresponding symbol fontlib unit and be provided.
When considering to illustrate when of the present invention in conjunction with this most realistic and preferred embodiment, should be appreciated that, the invention is not restricted to disclosed embodiment but want to contain the spirit that is comprised in the widest explanation and the different arrangement among the scope is so revised with equivalence and arranged so that comprise all.
Claims (17)
1. captions code device, it adopts digital video broadcasting captions standard to show the rare Chinese character that is not contained in the font that is embedded within the integrated receiver decoder memory in order to support Digital Television integrated receiver decoder to be applied to the television broadcasting end, and this captions code device includes:
The Chinese character sign indicating number library unit of Digital Television integrated receiver decoder is supported with the Chinese character that is not supported and in order to the size of the Chinese character string of Chinese character information to calculate the Chinese character supported by Digital Television integrated receiver decoder and formed to be provided with identification in order to information to be provided;
Rare Chinese font library unit is drawn in the size of on the screen, also calculating the bitmap that is produced in order to Chinese character information to be provided so that with this Chinese character;
The captions page or leaf is fetched the unit, in order to fetch the display position that one page comprises captions data, duration, color look-up table information, area information and every page of caption character of caption character and presentative time;
Pulse unit, in order to the tracking time to fetch elements reference as system time by this captions page or leaf;
Captions part generation unit, it is received from this captions page or leaf the data of unit and the information that is provided according to the Chinese character sign indicating number library unit of this Digital Television integrated receiver decoder and this rare Chinese font library unit is provided, and produces captions character object part and subtitle bitmap object part then and calculates caption area part, and the captions page or leaf part that delivers page information of each object's position, captions color look-up table part, delivery area information; And
The basic stream generation unit of captions packetized, its caption area part in conjunction with captions character object part, subtitle bitmap object part, captions color look-up table part, delivery area information, and the captions page or leaf part of delivery page information are so and produce the head of failing to be sold at auction substantially of captions packetized.
2. captions code device according to claim 1, wherein this captions part generation unit also comprises:
The caption object generation unit, it produces captions character object part, subtitle bitmap object part and calculates each object's position;
Captions color look-up table generation unit, it produces captions color look-up table part;
The caption area generation unit, it produces the caption area part of delivery area information; And
Captions page or leaf generation unit, it produces the captions page or leaf part of delivery page information.
3. captions code device according to claim 1 and 2, wherein the Chinese character sign indicating number library unit of this Digital Television integrated receiver decoder with should be rare Chinese font library unit replaced by the simplified Chinese characters character code library unit and the rare simplification Chinese font library unit of Digital Television integrated receiver decoder respectively.
4. captions code device according to claim 1 and 2, wherein the Chinese character sign indicating number library unit of this Digital Television integrated receiver decoder with should be rare Chinese font library unit replaced by the japanese character character code library unit and the rare japanese character fontlib unit of Digital Television integrated receiver decoder respectively so that support the demonstration of rare japanese character character.
5. captions code device according to claim 1 and 2, wherein the Chinese character sign indicating number library unit of this Digital Television integrated receiver decoder with should be rare Chinese font library unit replaced by the Korea character sign indicating number library unit and the fontlib unit, rare Korean of Digital Television integrated receiver decoder respectively so that support the demonstration of rare Korea character.
6. captions code device according to claim 1 and 2, the wherein calculating of character object and bitmap object position in these captions part generation unit execution vertical direction captions is with the demonstration as the vertical direction caption character.
7. captions code device according to claim 3, the wherein calculating of character object and bitmap object position in these captions part generation unit execution vertical direction captions is with the demonstration as the vertical direction caption character.
8. captions code device according to claim 4, the wherein calculating of character object and bitmap object position in these captions part generation unit execution vertical direction captions is with the demonstration as the vertical direction caption character.
9. captions code device according to claim 5, the wherein calculating of character object and bitmap object position in these captions part generation unit execution vertical direction captions is with the demonstration as the vertical direction caption character.
10. captions code device according to claim 1 and 2 wherein also comprises the symbol font library unit, to support the demonstration of sign character.
11. captions code device according to claim 3 wherein also comprises the symbol font library unit, to support the demonstration of sign character.
12. captions code device according to claim 4 wherein also comprises the symbol font library unit, to support the demonstration of sign character.
13. captions code device according to claim 5 wherein also comprises the symbol font library unit, to support the demonstration of sign character.
14. captions code device according to claim 6 wherein also comprises the symbol font library unit, to support the demonstration of sign character.
15. captions code device according to claim 7 wherein also comprises the symbol font library unit, to support the demonstration of sign character.
16. captions code device according to claim 8 wherein also comprises the symbol font library unit, to support the demonstration of sign character.
17. captions code device according to claim 9 wherein also comprises the symbol font library unit, to support the demonstration of sign character.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100020266A CN100401750C (en) | 2004-01-12 | 2004-01-12 | Caption coding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100020266A CN100401750C (en) | 2004-01-12 | 2004-01-12 | Caption coding device |
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| CN1642235A CN1642235A (en) | 2005-07-20 |
| CN100401750C true CN100401750C (en) | 2008-07-09 |
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| CNB2004100020266A Expired - Fee Related CN100401750C (en) | 2004-01-12 | 2004-01-12 | Caption coding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100364322C (en) * | 2005-11-21 | 2008-01-23 | 创维数字技术（深圳）有限公司 | Method for dynamically forming caption image data and caption data flow |
| CN101179669B (en) * | 2006-11-08 | 2011-03-16 | 中兴通讯股份有限公司 | Session television terminal subtitling generating and stacking method |
| JP2010283568A (en) * | 2009-06-04 | 2010-12-16 | Sony Corp | Subtitle information analysis apparatus, and subtitle information analysis method |
| CN101600082A (en) * | 2009-07-03 | 2009-12-09 | 中兴通讯股份有限公司 | High definition shows the method and the device of captions in the TV conference system |
| CN103269447A (en) * | 2013-04-22 | 2013-08-28 | 深圳市视维科技有限公司 | Method for achieving multi-national languages on set top boxes |
| CN108370451B (en) | 2016-10-11 | 2021-10-01 | 索尼公司 | Transmission device, transmission method, reception device, and reception method |
| WO2018096925A1 (en) * | 2016-11-22 | 2018-05-31 | ソニー株式会社 | Transmitting device, transmitting method, receiving device and receiving method |
| CN107302722B (en) * | 2017-05-12 | 2020-08-14 | 广州视源电子科技股份有限公司 | DTV code stream decoding method and device |
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| US5745454A (en) * | 1995-09-22 | 1998-04-28 | Sony Corporation | Recording medium having text information recorded thereon and reproducing apparatus |
| US6069613A (en) * | 1997-10-16 | 2000-05-30 | Phoenix Technologies Ltd. | Basic input-output system (BIOS) read-only memory (ROM) including expansion table for expanding monochrome images into color image |
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| US5745454A (en) * | 1995-09-22 | 1998-04-28 | Sony Corporation | Recording medium having text information recorded thereon and reproducing apparatus |
| US6069613A (en) * | 1997-10-16 | 2000-05-30 | Phoenix Technologies Ltd. | Basic input-output system (BIOS) read-only memory (ROM) including expansion table for expanding monochrome images into color image |
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