| Information storage medium, information recording apparatus, and information reproduction apparatus -> Monitor Keywords |
|
|
 
Information storage medium, information recording apparatus, and information reproduction apparatusRelated Patent Categories: Television Signal Processing For Dynamic Recording Or Reproducing, Processing Of Television Signal For Dynamic Recording Or ReproducingInformation storage medium, information recording apparatus, and information reproduction apparatus description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070065097, Information storage medium, information recording apparatus, and information reproduction apparatus. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of co-pending U.S. application Ser. No. 11/186,968, filed Jul. 22, 2005, and for which priority is claimed under 35 U.S.C. .sctn.120. U.S. application Ser. No. 11/186,968 is a divisional of application Ser. No. 10/234,402, filed Sep. 5, 2002, now U.S. Pat. No. 6,999,395, and for which priority is claimed under 35 U.S.C. .sctn.121. This application is based upon and claims the benefit of priority under U.S.C .sctn.119 from the prior Japanese Patent Application No. 2001-276727, filed Sep. 12, 2001. The entire contents of each application listed above is incorporated herein by reference, in its entirety. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to an information storage medium that records data containing a SYNC code. The present invention also relates to an information recording apparatus for recording data containing a SYNC code on an information storage medium. Furthermore, the present invention relates to an information reproduction apparatus for reproducing data containing a SYNC code from an information storage medium. [0004] 2. Description of the Related Art [0005] The DVD format specifies the contents of a SYNC code. In this specification, there are a total of 32 different SYNC codes. The SYNC codes are described in Jpn. Pat. Appln. KOKAI Publication No. 7-254239. [0006] In the existing DVD standard, in order to limit the pit length of a three-dimensional pattern or the maximum mark length of a recording mark (the run length of "0"s allocated between neighboring "1"s in channel bit data), source data undergoes a modulation process based on a specific modulation rule, and the modulated data is recorded on an information storage medium. A modulation method is generally expressed by (d, k; m, n), which symbols mean that "m-bits" source data is converted into data of "n-channel bits", and a modulated channel bit pattern has a minimum of "d" "0"s run length and a maximum of "k" "0"s run length. That is, the modulated channel bit patterns satisfy conditions that a minimum of "d" pieces of "0"s successively arranged and a maximum of "k" pieces of "0"s successively arranged. The modulation method in the existing DVD standard adopts a (2, 10; 8, 16) method (i.e., "d=2", "k=10"). [0007] In the next-generation DVD, the recording density is to be further improved. Accordingly, low SYNC code detection precision may pose a problem. BRIEF SUMMARY OF THE INVENTION [0008] It is an object of the present invention to provide an information storage medium compatible to high-density recording. [0009] An information storage medium according to an embodiment of the present invention comprises a management area that stores management information, and a data area that stores predetermined data in predetermined recording units, [0010] the predetermined data is modulated according to a (d, k; m, n) modulation rule, [0011] the (d, k; m, n) modulation rule modulates m-bit source data into n-channel bit data, so that modulated channel bit patterns satisfy conditions that a minimum of "d" pieces of "0"s successively arranged and a maximum of "k" pieces of "0"s successively arranged, [0012] the predetermined data includes at least one SYNC code in the predetermined recording unit, and [0013] the number of "1"s included in a predetermined number of a series of channel bits at an arbitrary position in the SYNC code is not more than a half the predetermined number. [0014] Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out hereinafter. [0015] Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out hereinafter. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING [0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate presently preferred embodiments of the invention, and together with the general description given above and the detailed description of the preferred embodiments given below, serve to explain the principles of the invention. [0017] FIG. 1 shows an example of SYNC frame data to be stored in an information storage medium; [0018] FIG. 2 shows an example of the data structure when a SYNC code is appended to the SYNC frame data, and that of the SYNC code; [0019] FIG. 3 is a block diagram showing a recording system of an information recording/reproduction apparatus according to an embodiment of the present invention; [0020] FIG. 4 is a block diagram showing a reproduction system of the information recording/reproduction apparatus according to an embodiment of the present invention; Continue reading about Information storage medium, information recording apparatus, and information reproduction apparatus... Full patent description for Information storage medium, information recording apparatus, and information reproduction apparatus Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Information storage medium, information recording apparatus, and information reproduction apparatus patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Information storage medium, information recording apparatus, and information reproduction apparatus or other areas of interest. ### Previous Patent Application: Information storage medium, information recording apparatus, and information reproduction apparatus Next Patent Application: Multimedia projection apparatus and playing method thereof Industry Class: Television signal processing for dynamic recording or reproducing ### FreshPatents.com Support Thank you for viewing the Information storage medium, information recording apparatus, and information reproduction apparatus patent info. IP-related news and info Results in 0.10881 seconds Other interesting Feshpatents.com categories: Tyco , Unilever , Warner-lambert , 3m 174 |
 * Protect your Inventions * US Patent Office filing 
PATENT INFO |
|
