Abstract: The present invention provides an access control method of controlling acceptance or rejection of access to content from metadata. The access control method according to the present invention includes a step of producing metadata 3A for content 6A and embedding a digital signature 4A of a producer who has produced the metadata as producer information in the produced metadata 3A, a step of embedding an identifier 5A indicating which metadata are accessible to the content in license information required to play back the content 6A, and an access propriety control step of comparing the digital signature 4A with the identifier 5A to control propriety of access to the content 6A from the produced metadata 3A.

Abstract: The present invention provides an access control method of controlling acceptance or rejection of access to content from metadata. The access control method according to the present invention includes a step of producing metadata 3A for content 6A and embedding a digital signature 4A of a producer who has produced the metadata as producer information in the produced metadata 3A, a step of embedding an identifier 5A indicating which metadata are accessible to the content in license information required to play back the content 6A, and an access propriety control step of comparing the digital signature 4A with the identifier 5A to control propriety of access to the content 6A from the produced metadata 3A.

Abstract: An information indicating that a pattern machining data for an industrial machine, which data is a collection of sectional machining data each including workpiece feed amount for each sectional machining and machining information for each sectional machining, is made contiguous to another machining data is inserted into a predetermined one of the machining data so that a plurality of machinings whose data size exceeds a capacity of a machining data memory of the machine can be can be performed thereby continuously.

Abstract: A data preparing apparatus includes an input device for inputting coordinate data such as a configuration and pattern to be processed and processing conditions, a memory device for converting the coordinate data inputted by the input device into variable coordinate data varying relatively according to the processing conditions and storing the variable coordinate data as a pattern data for processing, a predicting device for predicting a processing information resulting from a processing performed on the basis of the pattern data stored in the memory device and an output device for outputting the processing information obtained by the predicting device. The processing information includes at least one of a processing time, an area to be processed and a processing path. The predicting device calculates a processing time according to a preset processing rate.

Abstract: A device for creating stitching data for use by a sewing machine includes a tablet digitizer having a pattern entry area and menu area for which data for a stitching pattern in a forward direction is entered by a cursor. The data entry device operates in conjunction with a storage, under CPU control, to store the input stitching data in an input order. Reverse stitching data is generated automatically from the input data by an apparatus which is operative to read the forward direction stitching data in reverse order, analyze the content of the data, translate the identified data into reverse stitching data and write the reverse stitching commands into memory. The forward stitching data and automatically generated reverse stitching data are stored in a ROM for use by the sewing machine.

Abstract: A sewing data forming device for sewing machines comprising a coordinate input unit for inputting a coordinate value and a plurality of switches for providing instructions at an operating step, and forming needle position data for the sewing machine by calculating coordinate values sequentially inputted from said coordinate input unit. When needle position data to be newly inputted is within a predetermined distance from previously inputted needle position data, the needle position data to be newly inputted is replaced, when inputted, by the previously inputted needle position data as the same data. Also, a method of forming sewing data for a sewing machine is performed using the above device.