This International standard specifies a digital time and control code for use in television, film, and accompanying audio systems operating at 30,25,and 24 frames per second. Clauses 4,5 and 6 specify the manner in which time is represented in frame- based systems, Clause 7 describes the structure of the time address and control bite of the code, and sets guidelines for storage of user data in the code. Clause 8 specifies the modulation method and interface characteristics of a linear time code (LTC) source, Clause 9 specifies modulation method for inserting the code into the vertical interval of a television signal. Clause 10 summarizes the relationship between the two forms of time and control code.

• Year of Declaration: 2001
• Reference: IEC60461:
• Number of Pages: 67
• Code: GYS IEC 60461
• Version: Third edition 2001
• ICS Number: 13.060.20