TW559805B - Recording of a trick play signal on a record carrier - Google Patents

Abstract

A recording apparatus for recording a first information signal, comprising packets of information and a trick play signal comprising packets of information comprise a time stamp generator for generating time stamps for the packets. The first digital information signal is meant for a reproduction at a record carrier speed which equals the recording speed and the second digital signal is meant for a reproduction at a speed n1 times the recording speed. The time stamp generator derives said time stamps for the packets of said second information signal from the sync block numbers for the second sync blocks in which those packets are stored.

Description

559805 A7 B7 V. Description of the Invention (. The present invention describes a device for recording-the first and-the second digital information signal in its magnetic track on a record carrier, wherein the first and the first The two digital information signals are X data = signals including subsequent information packets, and the device includes ... 17; an input device for receiving the first and second digital information signals, a signal processing device, To process the first and second digital information signals into a first recording signal and a first non-rated speed playing signal, respectively, so as to be suitable for recording in the tracks on the record carrier, The signal processing device is adapted to generate a synchronization block of information. The synchronization block of the first recorded signal includes a synchronization character, a block number and a plurality of information bits of the first digital information signal. Group so that whenever the information is included in the x transmission packets of the first information signal, the information is stored in y first synchronization blocks, the first non-rated speed playback signal of the The step block includes a sync word, a non-rated speed playback sync block number, and several information bytes of the second information signal, so that whenever the information is included in the X transmissions of the second information signal In the packet, the information is stored in y second synchronization blocks, and the synchronization block digital generator device is used to generate the synchronization block numbers to be merged into the first synchronization block such as M. And used to generate the non-rated speed play sync block numbers to be merged into the second sync blocks, and the time mark generator device is used to generate time marks to the first and first The transmission packet of “Digital Information” number further applies this signal to the paper size of the Chinese National Standard (CNS) A4 specification, 297 cm. 559805 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7. ι The processing device is adapted to incorporate the time stamp of the equivalent translation and batch of temple-transmitted packets into the synchronization block of the first non-recorded signal and the first non-Yan and Xing Ming P-neck speed playback signal Medium,- The signal combination device is used for dirty Xuanzhe to combine one and the second sync block of Daisi Temple into a mixed signal, and the nesting device is used to set the speed at a predetermined recording speed of the Ling record carrier. The mixed signal is written into the magnetic tracks, and the nesting device includes a first and a second socket on a rotatable magnetic drum, and the first magnetic head includes a first azimuth, And the second write head includes a second azimuth angle, wherein the second azimuth angle is different from the first azimuth angle, and specifies that the first digital information signal is equal to the recording speed in a duplication device. Copy speed copy, specify that the second digital information signal is copied at a non-rated speed playback speed equal to the recording speed ni, where η is an integer not equal to 1, and X and y are integers, which holds χ > 1, and the greatest common denominator of ykx, X, and y is 1. Such a recording device can be understood by WO 98 / 34227-A3 (PHN 16252), in which WO 98 / 34227-A3 (PHN 16252) corresponds to US serial number 09/155724, which was filed on February 2, 1998. The known device has the form of a digital video recorder for recording a digital video signal. The digital video signal may be in the form of an MPEg (Motion Is Graphic Expert Group) coded video signal, wherein the information packet of the digital video signal is included in the serial data stream of the MPEG-coded video signal. In addition to the MPEG-encoded video signal, a non-rated speed playback signal can be recorded in the tracks on the record carrier. The non-rated speed playback signal can be the same video signal, but this paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page)

559805 A7

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. The description of the invention (3) is reproduced at a speed different from the declared recording speed of the record carrier (non-rated speed playback). Generally, a separate data stream is recorded as the non-rated speed playback signal on the record carrier to enable reproduction at the non-rated speed playback speed. The non-rated speed playback signal can be derived from the MPEG encoded video signal, for example, by selecting the I-frame in the encoded video signal. However, the non-rated speed playback signal does not necessarily need to be a non-rated speed playback signal related to the MPEG-encoded video signal, but may be a completely different signal. However, as in the case of the MPEG-encoded digital video signal, the serial data stream of the non-rated speed playback signal includes an information packet of the non-rated speed playback signal. The above-mentioned document explains that the time stamp is included in the packets recorded in all the serialized data streams on the record carrier, so that the serialized data streams of the packets can be reproduced correctly, and in the serialized The subsequent packets in the data stream have the correct mutual timing relationship, which makes it possible to generate a correct decoding in an MPEG decoder. To understand this, a counter is used to generate such time stamps. An object of the present invention is to recommend a recording device for recording one or more non-fixed-speed playback signals, which can generate the all time stamps for the packets in the signals in a different manner. The recording device according to the present invention is characterized in that: the time stamp generator device is adapted to derive the packets of the second information signal from the non-rated speed playing sync block numbers of the second sync blocks The time chart of this paper is 0. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 public love) (Please read the precautions on the back before filling this page) --------- tx ---- ----- · 559805

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The present invention is based on the following recognition. The use of time charts in this technique is well known. Time stamp these MPEG packets at a certain point in the chain so that the initial timing relationships can be reconstructed further down the chain, regardless of all their timing changes between the two points (Packet movement) type. It also uses time to cover the time series in a storage device. In this example, the record I is stamped on the input of the storage device with the time stamped on the MPEG stream. During playback, the time stamps are used to reconstruct the child start stream on the output of the storage device, and then the start stream is transmitted to the decoder or some other device. In terms of regular playback, this instant time stamp has a good effect 'but is more problematic for non-rated speed playback. This is due to the fact that there is a speed difference between recording and playback for non-fixed-speed playback materials. Playback is n times faster than recording. During playback, the timing relationships of the streams on the output of the storage device should be MPEG-compliant. It is advantageous to use the same technique used for regular playback, that is, to store the non-rated speed playback MPEG packets with a time stamp. However, because of the speed difference between recording and playback, it is difficult to use a solid time stamp counter for this purpose. We must also consider that there may be more than one special non-rated speed playback stream, some of which are designed for reverse non-rated speed playback streams. This makes the time stamp more complicated. In reality, however, the only requirement is that the non-rated speed playback output stream is MPEG-compliant and decodable. In addition, the paper size of this non-rated speed broadcast paper is applicable to China National Standard (CNS) A4 (210 X 297 mm) 1 · ------------------- h I Order ·- --I ----- (Please read the precautions on the back before filling this page) 559805 A7 Description of the Invention (5) The data is not only input data, but the input data that has been subject to correction to reduce the bit Transfer rate 'and convert the rotation data into non-rated speed playback data. Therefore, this conversion has one or more non-frontal generators. This also means that an instant time stamp is not needed: because the non-rated speed playback conversion, the initial relationship with the signal of 2 people will be lost anyway. It can be more clever by simple calculations and stamped at the time of recording such non-rated speed playing packets. In this way, the time stamping of all non-rated speed playback streams can be easily unified = using the non-volume and constant speed playback synchronization block as a starting point for the calculation, it can be done without departing from the uniform method Allow a more flexible data mapping. The non-rated speed playback output stream must only be approved by MpEG, which also leads to the fact that the packet's packet distance does not need to be constant. This allows a simple method to convert the number of such non-rated speed playback sync blocks into time. Figure 1. It can be easily implemented in hardware with a low gate fee. 0 By referring to the description in the illustration below Such systems will clearly and clarify these and other points of view of the present invention. It is illustrated in the illustrated description that FIG. 1 is a track group of p magnetic strips and the format of the tracks, where p is equal to 48, and during a first non-rated speed playback copy mode, the two The paths followed by the reproduction head across the record carrier, where the speed of the record carrier is + 4 times the declared speed; Figure 2 is the content of a track on the record carrier; Figure 3 is a sync block Format of this paper; -8- This paper size applies to Chinese national standard specifications (2l (Tx 297 male «) (Please read the notes on the back before filling out this page) Printed by the Employee Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 559805 A7

V. Description of the invention (6) Figure 4 is the format of the data head portion of the synchronization block in Figure 3; Figure 5—Two subsequent synchronization blocks, one of which is stored in a ship packet in the two synchronizations Figure 6 is the content of the packet head in the first sync block of the two subsequent sync blocks shown in Figure 5; the packet head includes the time stamps; Figure 7 and Figure 5 The content of the packet head in the first non-rated speed playback sync block of two subsequent non-rated speed playback sync blocks, where the packet · head includes the time for which the packets in one of the non-rated speed playback data streams were packeted Figures; Figure 8 is the relationship between the number of non-frontal speed playback synchronization blocks and the number of non-rated speed playback time; Figure 9 is the non-rated speed playback packets during copying in a non-rated speed playback copy mode The starting point is when the general rule is used to stamp the time described in relation to FIG. 8; FIG. 10 is a system of a recording device according to the present invention; and FIG. 11 and FIG. 12 are the other two (reciprocally) Since Rated speed synchronous playback of digital blocks in different ways to export such time stamp of where these two methods lead to the same number of such time stamp Zhi. Figure 1 illustrates the track format of the tracks recorded on the record carrier. The tracks are recorded at an oblique angle in the longitudinal direction of the record carrier. However, in Fig. 1, for the sake of explanation, these tracks are described with a longitudinal angle of a lateral record carrier 1. Can identify p-items on record carrier 丨 · 9- This paper is suitable for National Standards (CNS) A4 (210 X 297 public love) of the country of finance I-(Please read the precautions on the back before filling in this page)

559805 A7 B7 V. Description of Invention (7) (Please read the notes on the back before filling this page) Group of continuous tracks. The group of P continuous tracks is illustrated in Figure i, where P is equal to 48 in the present example. During recording / reproducing, these tracks are written / read in one direction from bottom to top and left to right in FIG. 1. The track format shown in FIG. 1 is very similar to the track format of FIG. 1 in WO 98 / 34227-A3. The difference between the track format shown in Figure 1 and the track format shown in Figure 1 of WO98 / 3 4227-A3 lies in the fact that it rotates the drum once in a non-rated speed playback copy mode. The total number of read non-rated speed playback sync blocks in the time period 'is now 112, of which 丄 02 non-rated speed playback sync blocks include 51 packets of the non-rated speed playback information signal, And the remaining 10 non-rated speed playback sync blocks include parity information. The track format of Figure 1 enables the tracks to play at different speeds, such as the set of tracks playing at 4x, 12x, and 24X, and their reverse speeds. Figure 2 illustrates the format of this one track. The track is recorded and read in one direction from left to right in the illustration. In the current example, the lengths of the different track sections in FIG. 2 are represented by several king synchronization blocks. The length of one king step block is 1 12 bytes, and each byte contains 8 bits. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, it first 'records a timepiece insertion part 2 and expresses it as' error', of which in the current example of the child is 2 master sync blocks long. Second, followed by a sync signal Shao It is divided into 3, which is 3 main sync block lengths. Following the preamble signal part 3 is a sub code signal recording part 4, which is 4 main sync block lengths. It is intended to record a sub code signal to the sub code signal record. Part 4

559805 V. Description of the invention (8). The sub-code signal may include absolute and / or relative time and _ content table. / Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Master sync block lengths; _ edit gaps 6, represented by "IBG", are 3 master sync block lengths; and _ preamble signal part 7, which is 1 master step in the current example Block length. Next, followed by an auxiliary signal recording section 8, ^ AUX 'indicates that it is 23 master sync block lengths. Specify the auxiliary signal recording ^ points 8 ^ to record an auxiliary signal, such as text data Following the ^ auxiliary signal recording and recording section 8, including a subsequent section 9, which is the length of the two main f-step blocks; an editing gap j 〇, with, IBG, expressed as 3 main same? Block Long; and a preamble signal part j 丨, which is pan-long for i main sync areas. Then it is followed by an information signal recording part 丨 2, indicated by the main data area, which is 3 07 main sync block lengths. Wait for digital information to be recorded into the information signal recording section 丨 2 A digital information signal may be a digital video signal and / or a digital sound signal, which may have been encoded into an MPEG information signal. In addition, non-head shoulder speed playback data can be included in the information signal recording section 丨2. It is conceivable that the information signal recording part 2 is divided into two parts in 3 places, a first part 12a is 277 master sync blocks long, and a second part 121 ^ is 3 (master sync Block length. The second part 12b includes the external Ecc (misreading check and correction) parity information. Following the Greedy # record part 丨 2, it includes a subsequent part 1 3, which is 2 main synchronization blocks Long; and another, error, part i 4 whose length is relevant 'but for the present example, it can be assumed to be 2 main -11-this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) V. Description of the invention (9 A7 B7 The sync block length printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. If so, this track has a total of 356 main sync zones. It should be noted here , Auxiliary signal recording part 8 For the selection, in the sense of another recording mode, 'no auxiliary signal is recorded in the magnetic field :, and the recording section 8, together with sections 9, 1 〇,, and 12, is filled with the main information at the same time. The full number of such departments; Jiaqiao Information No. 1 record back to Figure will further explain the contents of the information ^ record part 12 the first part ... Figure 1 illustrates the use of at least-the first-one or two The magnetic track recorded by the head. The first magnetic head includes a gap having a first azimuth angle, and the second magnetic head includes a gap having a second azimuth angle, wherein the second azimuth angle is different In the first: square corner. The diagonal lines extending from the lower left corner to the upper right corner of the icon indicate the magnetic tracks recorded by the first write head, and the diagonal lines extending from the lower right corner to the left corner of the icon indicate the For the tracks recorded by the second write head, refer to the circle with the reference number 20 in the figure. The first information signal is recorded in the tracks, more specifically in the information signal recording section 2 of the tracks, where the first information signal may include an information packet of an MPEG transport stream. In a system of the recording device, wherein the system is in the form of a digital image recorder of the helical scanning type, the first information signal may be recorded in the magnetic tracks, and the data is regularly played. In a duplication device ... one with. The record carrier speed is duplicated at the same record carrier speed during recording. This speed is defined as the declared record carrier speed. As defined above, the first information signal is adapted in the master synchronization blocks. In addition, a second piece of information signal has been recorded on the special piece of these tracks-12- This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) .----------------- ^ 丨 Order -------- Line (Please read the precautions on the back before filling out this page) Staff Consumption of Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative 559805 A7 _ B7 5. In the description of the invention (10). These segments are represented in Figure 1 by the reference number 22.i (+4), where i ranges from 1 to 12. The second information signal is designated to be copied in a copying device at one of the stated copying speed, +4, a multiple of the copying speed. In the sense that the second information signal is a non-rated speed playback signal with a claimed four times the reproduction speed, the second information signal may be one that has nothing to do with the first information signal described above. Information signal. In the sense that the second information signal is a non-rated speed playback signal with a claimed four times the reproduction speed, the second information signal may have a relationship with the first information signal in order to obtain a copy of (Image) signal, where the reproduction foot (Image) signal is a reproduction of the first (Image) signal of the reproduction, but at the stated speed, +4, times the reproduction. Figure 1 further illustrates the four scan lines 24.1, 24.2, 26.1, and 26.2. The scanning lines 24.1 and 24.2 of the double arrows indicate that during a period of two rotations of the drum, the magnetic head with the first azimuth angle traverses the record carrier in the mode of 4 times the claimed reproduction Such paths. The single-arrow scan lines 26.1 and 26.2 show that during the two-week rotation of the drum, the 'other magnetic head with the second azimuth angle passed over the claimed 4 times mode These paths of the record carrier. As can be seen in FIG. 1, the one magnetic head reads the non-rated speed play segments 22 · K · M), which is an odd number; and if the other magnetic head reads the non-rated speed play segments 22.i (+ 4), where i is an even number. In the current example, each of these non-rated speed play segments 22.i (+4) has a length of 56 non-rated speed play sync blocks. Of the 56 non-rated speed playback sync blocks in one clip, 5 丨 are not -13-

(Please read the notes on the back before filling this page)

559805 A7 V. Description of the invention (1 2) The rated speed playback sync block includes information content about the non-rated speed playback information stored in these sync blocks (which may include 'virtual' sync blocks), which will be later Explain it. The remaining five non-rated speed playback sync blocks in a segment include parity information, which was obtained from an E C C encoding step performed on the non-rated speed playback information. If so, during the period of one revolution of the magnetic drum, and in a mode of 4 times the scale, read the second information signal and the 102 non-rated speed playback synchronization blocks from the record carrier. Among them, the 102 non-rated speed playback synchronization blocks include 51 packets of the non-rated speed playback information signal. The track format of Fig. 1 has not been further explained because this description and its description of Fig. 1 in WO 98 / 34227-A3 are explained according to this same structure. But it can usually be assumed that during the period of one revolution of the drum, each of the non-rated speed playback sync blocks among all 1 12 non-rated speed playback sync blocks is read, of which 102 non-rated speed playback sync blocks include 51 packets of the non-rated speed playback signal, and 10 of these non-rated speed playback synchronization blocks include parity information. The u 2 non-rated speed playback sync blocks read during the one-time rotation of the drum, including the number of non-rated speed playback sync blocks, where the non-rated speed playback replication mode is used at the During the period of one rotation of the drum, the sequence of reading the non-rated speed playing synchronization blocks is numbered from 0 to U1 (including 0 * ηι), where the non-rated speed playing and synchronization blocks 0 are caused by the An azimuth head reads a non-rated speed playback sync block. These non-rated speed broadcasts 1 ______ -14- 2 paper rulers _ _ home " ^ NS) A4 size ⑵Q χ 559805 Printed by A7 B7 of the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (12) Put the synchronization area The block numbers 0 to U1 require a 7-bit counter, which is represented by TPSB #. For each of the 5 i packets of the non-full-speed playback signal stored in the 102 non-rated speed playback sync blocks, one non-rated speed playback time stamp is provided. This non-speed playing time map is well known in the M art. According to FIG. 7, the data of the non-rated speed playing time chart of each packet is stored as the 2 _bit TSH ′ number and the 1 8 _bit T s L number, and will be described below. . Next, the format of such non-rated speed playback sync blocks will be discussed with reference to FIG. 3. The non-frontal speed playback sync blocks have the same length as the sync blocks of μ and other & in the main data area of FIG. 1, The first digital greed ## is stored in the non-rated speed playback synchronization block. A non-rated speed playback sync block is 112 bytes long and includes: a 2 byte sync character, an identification code part 60, represented by 10; a magnetic head part 61, represented by a main head, An auxiliary bit ^ 62, denoted by, data_auxiliary, and a data area 64 of 104 bytes. The data area 64 includes space for storing a non-rated speed playback Lbl (one of the children's second to seventh information signals), its 96-byte data and 8 parity bytes. . FIG. 4 illustrates the two bytes 70 and 71 of the main head region 61 of FIG. 3. The non-rated speed playback sync block number TPSB # can be stored in these bits% to b 6 of the king head area 6 丨 its byte 7 2. Next 'will discuss the time stamps of these non-rated speed playback sync blocks. The P time stamp is well known in the art. Refer to the relevant US L —_- 15- The size of this and our sheets is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (Please read the precautions on the back before filling this page)

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 559805 --------___ V. Description of the Invention (13)), 579, 183 (PHN 14818) and International Application WO96 / 3〇095.0 (pHN 1526〇). These instructions indicate that the MPEG packet is recorded on a record carrier, where once an MPEG packet arrives, the time stamp is added to the mpeg packet, and the packet is subsequently recorded. Once copied, the packet is read from the record carrier and the time stamp is retrieved from the packet to provide the packet to an output at the appropriate time. Fig. 5 illustrates how to store an 8 8 byte transmission packet in two subsequent sync blocks, more specifically in the data area 6 4 a of the two subsequent sync blocks. First, a 4-byte packet head 75 is stored in the #sync area 6 4 a of the first sync block of the two sync blocks, which is represented by SBn. Then, the 92 bytes of the MPEG packet are stored in the remaining part of the data area 6 "of the sync block SBn. The remaining 96 bytes of the MPEG packet are stored in the first gate step area The data area 6 4 a of the block SBn + i. The time-lapse signature corresponding to a transmission packet is stored in the packet head 75. This will be explained in FIG. 6. More strictly, the time of the regular playback of the data The picture is 22 bits long, and is stored in the last 22 bits of the packet head 75. The time stamp of the 2 2 _ bits of this' normal playback, data has been divided into a TSL (low time picture) And a τ s η (time chart high) part. 泫 The TSL part is 18 bits long and rotates cyclically with a modulus value of 225,000. In terms of a device, the drum rotates 1800 revolutions per minute; Or rotate cyclically with a modulus value of 225,225. In terms of a device, the magnetic drum rotates 18,000 / 1,001 revolutions per minute. The TS is divided into 4 bits and uses a modulus Number value 丨 2 cycle to -16- This paper size applies to China Home Standard (CNS) A4 Specification (210 X 297 mm) (Please read the precautions on the back before filling out this page) > Equipment —— ^ --- ^ l · — Order: -----.—— Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 559805 A7 _ B7 V. Description of the invention (14). Once each rotation of the TSL returns to 0, the TSH number is chosen as 10. One can be used in the recording device. A time stamp counter is used to generate a time stamp of MPEG packets such as regular playback and information signals, which will be described later. The time stamp counter has a period equal to six rotations of the drum. This current In the example, the time stamp counter generates the 2 2 -bit time stamps, where the 2 2 -bit time stamps are represented as a digital formula with a timepiece frequency of 27 MHz (MHz). · ≫ You can get a special non-rated speed playback information from a MPEG data stream by capturing a packet that includes an image frame. 7 Non-rated speed playback from the MPEG data stream in this technology Information is well known, The packets are stored in the non-rated speed sync blocks. A time stamp generator unit can be used in the recording device to generate a non-rated speed playback information signal. The non-rated speed of the MPEG packets Play time stamp. The format of the non-rated speed play time stamp is illustrated in Figure 7. The time stamp of the non-rated speed play data is composed of an 18-bit TSL (low time chart meter) part and an eight-bit tsh, (Time chart 1 is already high). The 20-bit non-rated speed playback time stamp is stored in the two subsequent non-rated speed playback sync blocks, and the first non-rated speed playback sync block is stored. In the packet head 75, the MPEG packet corresponding to the child time chart is stored in the two subsequent non-frontal speed playback synchronization blocks, see FIG. 5. • Install -------- Order --------- (Please read the precautions on the back before filling this page) -17

A7

559805 V. Description of the invention (15) In the time chart generator unit, from the two non-rated speed playback sync blocks, the first non-rated speed playback sync block number of the non-rated speed playback sync block The non-rated speed playing time chart count of the one packet is derived in 其中, where the packet is stored in the two non-rated speed playing synchronization blocks. Therefore, from the non-rated speed play sync block numbers 0, 2, 4, ... 98 and 100, the 5 i of the 102 non-rated speed play sync blocks will be derived and stored. 5 i time chart of packet. Refer to Figure 8 to further explain this derivation. Figure 8 illustrates the number of non-rated speed playback sync block digital generators (z =) 7. Bit 7 ° non-rated speed playback sync block number TPSB # and how to use the non-rated speed playback sync block number These bits of the block number lead to the non-rated speed play time chart. Use the non-rated speed to play the sync block number and its η '(= 2) most significant bits as the two bits of the T S Η part of the non-rated speed playback time map. In addition, the remaining A (= 5) bits (and the least significant bit) of the non-rated speed playback sync block number are used to derive the TS portion of the non-rated speed playback time stamp. More specifically, 'make the most significant bit of the TSL · part and the 12 least significant bits of the τ SL part equal to' 0 ', and make the remaining part of the T s L part A (= 5) The number of bits is equal to the A least significant bit of the non-rated speed playback sync block number. The TSL rotates with a modulus of 値 225,000 cycles, for one device, where the drum rotates 1800 revolutions per minute; or it rotates with a modulus of 値 225,225, for a device, where the The drum rotates at 1800 / 1.001 revolutions per minute. TSH 'turns cyclically with a modulus 値 4 -18- This paper size applies to China National Standard (CNS) A4 specifications (210 > c 297 public love) ----------- install- ----- Order ---- I ---- (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 559805

V. Description of the invention (19) The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints a full-speed playback sync block to generate a non-mosquito speed playback sync block number TPSB # 'JL stores these numbers at this non-rated speed playback sync Block, and generate a time stamp for each packet in the manner explained above. ^ Then, the non-rated speed playback sync blocks and the regular playback and sync blocks generated by the regular playback signal processing unit 114 are combined into the multiplexer unit 122 so that information is recorded by one of the magnetic heads in In a rounded track, the synchronized block sequence of the regular playback information and the non-rated speed playback information can generate the main data area 12 of one of the 48 tracks shown in FIG. I . Add sub-code data and auxiliary data, and implement an error correction coding on the combination of normal playback data and non-frontal speed playback data to obtain parity information of the track part 1 2 b. In addition, synchronizing characters and identification code information are added. Then, a channel coding step is performed on the information before the information is recorded in the magnetic files. Next, two different methods for deriving the time stamps from the non-rated speed playback sync block numbers will be described with reference to Figs. 11 and 12, where the methods result in the same sequence of time stamps. In both methods, the time stamp generator device is adapted to perform the following steps on the non-rated speed playback sync block number in order to obtain the (n > k ')-bit count: 値: A first operation is performed on a non-rated speed playback sync block number in order to obtain a first operation result (200,200 丨), which is derived from a first part of the first operation result (... + ^ Bu Wei-22- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ^ -------- Order --------- (Please read the note on the back first Please fill in this page again for details) 559805 A7 — · ι 丨 丨 β7 V. Description of the invention (20) The number of elementary counts η η 元 digits, n fixed on the second part of the a operation # 果 # Operate in order to obtain a second operation result (202, 2 () 2,), and from the second operation result, the number of bit counts is equal to the number of bits. More specifically, in Fig. 11, in step (a) of the current case 5, a first predetermined number multiplied by a non-rated speed to play the sync block number tpSB # 等 A (= 6 ) Most important bits. Next, in step (b), the n-th most significant bit of the first operation result of 200 is allocated to the (n '+ k,)-bit count number, where n, bits (The TSH part of this count). Figure u. The second operation in step (c) is a multiplication operation of the remainder of the first operation result 200, that is, in the current case 7, a second predetermined number is multiplied by the result 2 〇〇 Its 6 least significant bits 7L. Next, in step (d), the B (9) units of the second operation result 202 are allocated to the bit count number of the k most significant bits, such as the B most significant bits. . In addition, the remaining (9) bits of the k, bits are set to 0, resulting in the T S L portion of the counts. More specifically, in FIG. 12, step (a) of the current case 5/4, a first predetermined number is multiplied by the non-rated speed to play the sync block number TPSB #. In the example of FIG. 12, the steps and the addition step indicated by reference numbers 204 and 2 06 (divided by 4) accomplish this. Next, in step (b), the n, (= 2) most significant bits of the first operation result of 200, are allocated to the (n, + k,)-bit count number, which is n Units (This meter-23- This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) (Please read the precautions on the back before filling out this page)) Loading ------ 丨Order ---- S1. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 559805 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (21) The number of TS Η). Figure 1 2. The second operation in step (c) is a multiplication operation for the remaining part of the operation result 2000. That is, a second predetermined number in the current case 7/8 Multiply the result by 2 0 to its 6 least significant bits. In the example of Fig. 12, the steps indicated by reference numbers 208 and 210 (divided by 8) and the subtraction step accomplish this. Next, in step (d), the B (= 9) bits of the second operation result 202, are allocated to the (n, + k,) _ bit count number which is] ^, a The B most significant bits of a bit. In addition, the remaining (9) bits of each of these bits are set to 0, so as to cause the TSL portion of these counts. Both methods produce the same counted number array, which is better than the counted number array shown in Figure 9, where gap i and gap 2 have approximately the same length, and the length is between the subsequent counts The magnitude of the distance. When the present invention has been described in terms of a more preferable system related to the present invention, it will be recognized that the valence system is not a limiting example. If so, it will be apparent to those skilled in the art that various modifications can be made to the invention as defined in the scope of the patent application without departing from the scope of the invention. If so, in addition to a digital image signal and / or, the first information signal may be another signal type, such as a data signal; :: 丄 C is recorded in a child ’s non-rated speed playback clip The non-rated speed playback signal may be: an information signal having no relationship with the first digital information signal. In this system, the record carrier is a recording medium in which there are multiple transmission channels on the d Z recording medium that can be used to transmit independent information signals. In addition, any reference sign does not limit the scope of the patent application (please (Please read the precautions on the back before filling this page) ▼ Install -------- Order ----- s'. -24- 559805 A7

Claims (1)

11 / Ministry of Economic Affairs, Central Bureau of Industry and Engineering, Shellfish Consumer Cooperative Co., Ltd. 559805 No. 89108008, patent application, Chinese patent application scope amendment too (January, 1989) D8_____ Six, apply for special ^ Ϊ —-1 A device for recording a first digital information signal and a second digital information signal in a magnetic track on a record carrier, wherein the first and second digital information signals include a subsequent information packet The information signal, the device includes:-an input device for receiving the first and second digital information signals, " f device, for receiving the first and second digital information The signals are processed into a first recording signal and a first non-rated speed playing signal, respectively, suitable for recording in the tracks on the record carrier. 'The signal processing device is adapted to generate a synchronized block of information. , The first sync block of the green signal includes a sync character, a sync block number, and several information bit groups of the first digital information signal, so that whenever the information is included in the first When there are X transmission packets of the information signal, the information is stored in the y first synchronization block. The synchronization block far from the first non-rated speed playback signal includes a synchronization word and an unrated speed. Play the sync block number and the several information bytes of the second information signal, so that whenever the information is included in the x transmission packets of the second information signal, the information is stored in the yth Of the two sync blocks, a sync block digital generator device is used to generate the number of sync blocks to be merged into the first sync block, and is used to generate the non-rated speed playback sync regions The block numbers are incorporated into these second synchronized blocks. This paper uses the Chinese National Standards (CNS) (21GX297 mm ----- (Please read the precautions on the back before filling out this page), 1T Printed by the Central Bureau of Standards of the Ministry of Economic Affairs and Industrial Consumer Cooperatives 559805 A8 B8 C8 D8 I ----------------- 6. Scope of Patent Application • Time stamp generator device, used to generate time stamp The first and second digits The transmission packet of the information signal further adapts the numbering processing device to incorporate the time chart of the violating transmission packet into the synchronization block of the first recording signal and the first non-rated speed playback signal, the signal A combination device for combining the first and second sync blocks into a mixed signal, and a writing device for writing the mixed signal at a predetermined recording speed of the 1 recorded carrier In the magnetic tracks, the writing device includes a first and a second write head located on a rotatable magnetic drum, the first magnetic head includes a first azimuth, and the second The write head includes a azimuth angle, wherein the second azimuth angle is different from the first azimuth angle, and specifies that the first digital information signal is reproduced in a reproduction device at a reproduction speed equal to the recording speed. The second digital information signal is reproduced at a non-rated speed playback speed equal to the recording speed ni, where IM is an integer not equal to 1, and x * y is an integer that holds xkl, and X and y The greatest common denominator of is 1, which is characterized by: adapting the time stamp generator device to derive the second information signal of the packets from the non-rated speed playback sync block numbers of the second sync blocks Time icon. ^ 2. The device according to item 1 of the scope of patent application, characterized in that the time stamp generator device is adapted to derive the first block from the non-rated speed playback sync block number of the first second sync block One of the two information signals ^ The paper size is applicable to the Chinese and European countries (CNS) A4 specification (210X297) -------- I (Please read the precautions on the back before filling this page), 1T 559805 Economy A time chart of ft A8 B8 C8 D8 in the Consumer Cooperatives of the Ministry of Standards and Technology Bureau of the People's Republic of China, and the scope of the patent application 2 packet, where the packet is stored in the first second synchronization block. 3. = Patent application scope The device of item 丨 or item 2, is characterized in that: the j time stamp generator device is adapted to generate the time stamp to the packets of the second information signal, so that the subsequent time stamp values are substantially Equidistant. 4. If the device of the scope of the patent application is the first, it is characterized by: adapting the writing device so that the second synchronization block of the first non-rated speed playback signal is nested with P In a group of tracks, It is convenient to copy the second synchronization block in a device for copying the second information signal at the speed of the record carrier ni times the recording speed. The copying device includes a rotatable magnetic drum, and at least one is provided. The magnetic head with the first azimuth and the magnetic head with the second azimuth are given to the rotatable drum, and the m of the first non-rated speed playback signal is read during a period of one revolution of the drum. The second sync block, adapting the sync block digital generator device to generate a non-rated speed to play the sync block number and its subsequent loop to merge into the m second sync blocks, Z-bit digital digits are used to represent the m non-rated speed playback sync block numbers, and Z is an integer number greater than 1. Adjust the time stamp generator device to synchronize playback from the non-rated speed playback A cycle that generates a time stamp value in a loop of block numbers in order to obtain a time stamp value in the form of the (n '+ k') _ bit count value, where η 'and L are integers greater than 1. And from the corresponding to a non-3-sheet paper Λ degree is applicable to China and China Standards (CNS) grid (210 × 297 mm) -------- Fees ----- | _: 玎 · --- --- · (Please read the precautions on the back before filling this page) 559805 A8 B8 C8 D8 VI. Patent Application Range ~ ^ ~ ^ ^ The Z-bit digital number of the synchronized block number at the rated speed. Derive 11, bits of the (n '+ k,)-bit count value in one section, and derive (η, +) 〇- from a second section of the z-bit digital number K 'bits of the bit count value. 5. If the device of the scope of patent application No. 4 is characterized by: z is less than n + k', but is greater than η ', select (n' + k '> The n ′ bits of the bit count value are such that the n, bits are equal to the n ′ bits in the first part of the z_bit digital number. 6. The device as claimed in item 5 of the patent application, characterized in that the first part of the z-bit digit number includes η 'bits. 7. The device as claimed in item 5 of the patent application, characterized in that the (n ′ bits of the number of counts other than the bit count are the (n, + k,)-bit counts of the number n ′ The most important bit. 8. The device according to item 4 of the scope of patent application, characterized in that the second part of the z-bit digit includes a number of bits A, where a is smaller than k '' select this ( n '+ k')-the number of bit counts whose k 'bits are a bit, such that the A bits are equal to the a bits of the second part' and choose far (n '+ k')-the bit count value of the remaining bits among the k 'bits, so that the remaining bits are equal to 0. 9. If the device of the scope of patent application of item 8, which The characteristics are: selecting the (η '+ k')-bit count value and its k, the most significant bit in the bits, so that the most significant bit is equal to, 0, and selecting the (n, + k ,)-The bit count value of the k 'bits of the second most important bit, making the a bits equal to the A bits of the second part, and selecting the paper For the standard, use the Chinese National Standard (CNS) A4 specification (210X297). ---- Order --- AW. (Please read the precautions on the back before reading (Fill in this page) Printed on 559805 A8 B8 C8 D8 by the Men ’s Consumer Cooperatives of the Standards Bureau of the Ministry of Economic Affairs 夂, the scope of patent applications (nf + k > bit count values, the remaining bits in the k W fixed bits, Make the remaining bits equal to '0'. 10. The device according to item 1 of the scope of patent application, characterized in that the writing device is adapted to synchronize the second non-rated speed playback signal with the second The block is written into a group containing p subsequent tracks, so that during the copying of the second synchronized blocks in one device, the second information is used to copy the second information at the record carrier speed h times the recording speed. Signal, the duplication device includes a rotatable magnetic drum, at least one magnetic head with the first azimuth angle and one magnetic head with the second azimuth angle are provided to the rotatable magnetic drum, and the magnetic drum rotates once Read the m second sync blocks of this first non-rated speed playback signal during the time Adapt the sync block digital generator device to generate ^ non-rated speed playback sync blocks for half of its subsequent cycles to merge into the m second sync blocks' with z-bit digits The number indicates that the m non-rated speeds play synchronous block numbers, and Z is an integer number greater than 1. The generator device is adapted to this time. The cycle of generating a time stamp value in order to obtain a time stamp value in the form of the (n > k ·) -bit count value 'where η' and k 'are integers greater than 1, adapt the time stamp generator device to make Perform the following steps on the non-rated speed playback sync block number to obtain the (n '+ k') · bit count value: (a) Perform a first on a non-rated speed playback sync block number One operation in order to obtain the first operation result, -------- 4 ^ ·-(Please read the precautions on the back before filling out this page), 1T Off-line consumption by the Central Government Bureau of the Ministry of Economic Affairs Cooperative print 559805 Patent application scope Printed by the Central Government Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative (b) Since the first operation, far away, the (n-bit count value n, a Bit, (c) perform a second operation on the first operation result-罘-Shaofen, in order to obtain a second operation result, (sentence is not derived from the second operation result T t (N '+ k > The bit count value is kf bits. 11. For a device with a patent application range of 1 ^^ 1, it is characterized in that the first operation is equivalent to a first preset弁 、 The number of private & ^ 玥 Yuan 夬 疋 contained in this book is multiplied by a non-rated speed to play the eight most significant bits of the sync block number. 12. For a device in the scope of item 1G of the patent application, its characteristics are: The deriving step (b) includes allocating the 11 most significant bits of the first operation result to the (n '+ k,)-bit count value such as n, bits. 13 · If applying The device of the scope of patent No. 丨 0, characterized in that the second operation is equivalent to a second predetermined Multiply the remainder of the result of the first operation by the number. 14. If the device of the scope of application for patent No. 10 is characterized in that the deriving step (d) includes the following sub-steps, the result of the second operation The B bits are assigned to the (n, + k,) _ bit count value k, the B most significant bits in the bits, and the k, bits in the Wait for the remaining bits equal to W. 15 · If the device of the scope of patent application No. 4 or item i 0, the characteristics are: 11 丨 = 2, and k 丨 = 18. 16. If the scope of patent application No. 4 or The device of item 〇 is characterized by: Z = 7 0 -6-This paper size is applicable to the Chinese national rubbing (CNS) A4 specification (210x 297 cm) ------------- Fee ---- I, Light -------- ___ (Please read the note on the back first to fill in this education) v '. II 559805 A8 B8 C8 D8 Order by the Ministry of Economic Affairs Printed by Consumer Cooperatives Ⅵ. Scope of Patent Application 17. If the device in the scope of patent application item 8 or item 11 is characterized by A = 5. ', 18. If the device in the scope of patent application item 10 is determined in advance Number equals 5 or 5/4. 19. If the pre-determined number of the device in the scope of patent application item 13 is equal to 7 or 7/8. 20 · In the device of the scope of patent application application, it is characterized in that the device further includes capture A device for capturing the second digital information signal from the first digital vanadium signal and for providing the second signal to the input device. Lean 21. A first digital information signal and a Method for recording a second digital information signal in its magnetic track on an i-recorded carrier, wherein the first and second digital information signals are information signals including subsequent information packets, the method includes the following steps:- Receiving the first and second digital information signals,-processing the first and second digital information signals into a first recording signal and a first non-respectively by generating a synchronization block of information The signal is played at full speed to be suitable for recording in the tracks on the record carrier. The sync block of the first recorded signal includes a sync character, a sync block number, and the first digit. Information signal A number of information bytes, so that whenever the information is included in the X transmission packets of the first information signal, the information is stored in y first synchronization blocks, the first non- The sync block of the rated speed playback signal includes a sync. Its characteristics are: the first is characterized by: the second-(please read the precautions on the back before filling this page), 1T榡 Jun & CNS) Cong Mi (21GX297) and 559805 A8 B8 C8 D8 Ministry of Economic Affairs, Central Bureau of Commerce, Zhuhai Bureau, X Consumer Cooperative Co., Ltd., printed oxygen application patent scope word 1, a non-rated speed playback sync block number and the second Information bluffs its several information bytes so that whenever the information is included in the x transmission packets of the second information signal, the information is stored in y second synchronization blocks, • Generate the sync block numbers to be merged into the first sync block 'and generate the non-rated speed play sync block numbers to be merged into the second sync block to generate a time map $ Have given these first and second Digital information signal transmission packets, and the time chart of these transmission packets is merged into the synchronization block of the first recording signal and the first non-rated speed playing signal,-the first and second The sync blocks are combined into a mixed signal,-the mixed signal is written into the tracks at a predetermined recording speed of the record carrier, and the first digital information signal is designated in a duplication device with an equal to The reproduction speed reproduction of the recording speed refers to the reproduction of a digital information signal of the far-end brother at a non-rated speed playback speed equal to n ^ times the recording speed, where η is an integer not equal to 1, and X and y are integers. It holds X21, and the greatest common denominator of y2x, X, and y is 1, which is characterized in that the step of generating the time stamp includes deriving the first number from the non-rated speed playback sync block numbers of the second sync blocks. Two information signals are sub-steps of the timing of these packets. -8-ΜΛ 张 Λ 度 逋 Uses the Chinese name of the National Standard (CNS) A4 specification (210X 297 mm) -------- Will ^ ---- ^-I order ------ · (Please read the notes on the back before filling this page) 8 9