SMPTE timecode is presented in hour:minute:second:frame format and is typically represented in 32 bits using binary-coded decimal. A logic value 0 is expressed by the absence of such a transition.) compared to the outwardly-similar Manchester code (A logic value 0 is expressed by a high-to-low transition, a logic value 1 by low-to-high transition at the midpoint of a period). The invention of timecode made modern videotape editing possible and led eventually to the creation of non-linear editing systems.īasic concepts SMPTE timecode signal (A logic value 1 is expressed by a transition at the midpoint of a period. They provide a time reference for editing, synchronization and identification. Timecodes are added to film, video or audio material, and have also been adapted to synchronize music and theatrical production. SMPTE revised the standard in 2008, turning it into a two-part document: SMPTE 12M-1 and SMPTE 12M-2, including new explanations and clarifications. The system is defined by the Society of Motion Picture and Television Engineers in the SMPTE 12M specification. SMPTE timecode ( / ˈ s ɪ m p t iː/ or / ˈ s ɪ m t iː/) is a set of cooperating standards to label individual frames of video or film with a timecode. ( July 2011) ( Learn how and when to remove this template message) Please help to improve this article by introducing more precise citations. Any transportation expenses for returning this product (at end-of-life) must be covered by the end user, while Meinberg will bear the costs for the waste disposal itself.This article includes a list of general references, but it lacks sufficient corresponding inline citations. To ensure that the product is disposed of in a WEEE-compliant fashion, it can be returned to the manufacturer. This product is handled as a B2B (Business to Business) category product. Required accuracy of time code source: ☑00 ppm ± 1 µsec compared to IRIG reference marker Less than one minute after connecting an IRIG input signalĪutomatic switching to crystal time base, accuracy approximately 2 * 10 -9 if decoder has been synchronous for more than 1h. Integrated IRIG time code reader, supports modulated (AM) and unmodulated (DCLS) IRIG signals The Meinberg Single-Driver-Concept simplifies driver installation dramatically - there is only one driver who supports all Meinberg PCI and USB devices and if you use our free API to access your Meinberg timing device from within your own applications, you can use the same source code for both PCI and USB devices. Some command line tools can be used to modify configurable parameters and monitor the status of the clock in use. This also allows the computer to be used as an NTP time server to provide accurate time to NTP clients on the network. The Linux and FreeBSD driver packages include a kernel driver which allows the product to be used as a reference time source for the NTP daemon included in most Unix-like operating systems. If the monitor program is run with administrator rights, it can also be used to modify configurable parameters. This package also includes a monitor program to enable the user to check the status of the device and time adjustment service. The Windows driver package includes a time synchronization service which runs in the background and adjusts the Windows system time continuously and invisibly. The receiver circuit of the TCR180USB-EL is galvanically isolated from the signal input via an integrated optocoupler. The input for unmodulated or DCLS (DC Level Shift) time codes also has an SMB connector. The automatic gain control of the receiver for modulated codes allows the decoding of IRIG signals with an amplitude of the sine carrier of 800 mV pp to 8 V pp The potential-free signal input via SMB connector has an impedance of 600 Ohm. Unmodulated IRIG codes transmit the time information by varying the width of pulses.

With modulated codes, the time information is transmitted by modulating the amplitude of a sine wave carrier. With this device a technician can check the quality and validity of an IRIG signal in the field, due to the compact package and simple cabling (only one USB connection for both power and data is required).

The TCR180USB-EL provides a professional solution to your time synchronization requirements in mobile applications like field data acquisition with a laptop/notebook and can be deployed whenever you need to synchronize a standalone PC, laptop or server when no PCI or serial port is available.

Convert time code reader to a clock