WG 3 - TC 100/WG 3

Specifies the basic methods of measurement for evaluating the electronic and mechanical performance of consumer-use digital VTRs. Enables checks of the interchangeability and characteristics of the equipment under test and enables evaluation of the quality of image and sound.

Applies to cabled distribution systems having a coaxial cable output and primarily intended for television and sound signals. Specifies the basic methods of measurement of the operational characteristics in order to assess the performance of the systems and their performance limits.

Specifies the measuring methods for recording and reproducing equipment for MiniDiscs that conform to IEC 61909. Lists and defines the characteristics affecting the performance of MiniDisc recorders or players, establishes conditions and methods of measurement of those characteristics, and standardizes the presentation of the results.

Establishes basic principles applicable to the next generation of digital video cassette recording systems for consumer use for the interest of both users and manufacturers. Specifies the content, format and recording method of the data blocks forming the helical records on the tape containing audio, video, and system data. Describes the specifications for the 1125-line system with a frame frequency of 30,00 Hz and the 1250-line system with a frame frequency of 25,00 Hz.

Specifies the content, format and recording method of the data blocks forming the helical records on the tape containing audio, video, and system data. It describes the specifications for the 525-line system with a frame frequency of 29,97 Hz and 625-line system with a frame frequency of 25,00 Hz. One video channel and two independent audio channels are recorded in the digital format.

Specifies the character information systems which is applicable to the whole recording system for helical-scan digital video cassettes using 6,35 mm magnetic tape. Provides the method of recording characters in many languages and provides easy operation for users.

Specifies the content, format and recording method of the data blocks forming the helical records on the tape. Describes the common specifications for cassettes, modulation method, magnetization and basic system data, for helical-scan digital video cassette recording system using 6,35 mm (1/4 inch) magnetic tape. Defines the electrical and mechanical characteristics of equipment which will provide for the interchangeability of recorded cassettes.

Specifies the pack headers and the contents of packs which are applicable to the whole recording system of helical-scan digital video cassette using 6,35 mm magnetic tape.

Lays down the measuring methods, performance requirements and data publication requirements for active coaxial wideband distribution equipment of cabled distribution systems for television and sound signals. Applies to all broadband amplifiers used in cabled distribution systems and covers the frequency range 5 MHz to 2150 MHz and also applies to one-way and two-way equipment.

Concerns the assessment of the performance of non-broadcast camera-recorders. Defines test patterns and measurement conditions so as to enable the comparison of the results of measurements.

Specifies the general requirements for methods of measurement for high-band video tape recorders, including those equipped with Y/C video connector(s) (NTSC/PAL).

Specifies the general requirements for the calibration tape which is used for measurement of signal characteristics of the playback systems of non-broadcast video tape recorders (NTSC/PAL/SECAM). Appliles particularly to the measurement items which require complex test signals unavailable from a general purpose test signal generator.

Describes the methods of measurement, test signals and procedures which may apply to characteristics of video recording/playback machines mainly intended for professional use. The contents of the corrigendum of April 1995 have been included in this copy.