Intellectual Property; Introduction - Usl LSS-100P Installation And Operation Manual

Intellectual Property

The LSS-100P is manufactured under US Patent

Introduction

The LSS-100P is designed for cinema auditorium quality control. It measures C-weighted sound pressure
level (SPL) in dB, luminance in cd/m
The LSS-100P makes all of these measurements available on a web interface, through TCP commands
over Ethernet, and by posting data to a remote web server for further analysis and display.
In a typical installation, the digital cinema server runs a test show each day. The show consists of a
composition containing red and green flashes that tell the LSS-100P to run one of its scripts. The script
start composition is followed by a test composition. Several test compositions are available for different
auditorium configurations. Each of these provide pink noise to each speaker in the auditorium. The LSS-
100P measures the SPL from each speaker to detect changes in the system. The test compositions also
include a white test pattern allowing the LSS-100P to measure peak luminance and chromaticity. These
values are limit checked, logged, and optionally posted to a remote web server for further analysis.
The LSS-100P contains a color sensor, not an image sensor. There is no possibility of the LSS-100P
transmitting an image of the movie, so it does not present any security issues.
The LSS-100P is powered by the supplied Power Over Ethernet power injector. If desired, it may also be
powered using a USB cable.
The LSS-100P should be mounted on the rear wall of the auditorium. It is aimed towards the center of
the screen using the internal LEDs. Before the first show or after the last show, a test pattern is
projected and pink noise sent to each speaker. The LSS-100P measures the color, luminance, and SPL.
These measurements are used to identify lamps nearing end of life, misadjusted lamps, projector color
problems, defective speakers, etc.
Since measurements vary in different positions in the room, the measurements from the LSS-100P
should be compared with previous measurements to detect changes rather than interpreting the
absolute values delivered by the LSS-100P.
v160817
LSS−100P Installation & Operation Manual
8,836,910 . The firmware is copyright Ultra Stereo Labs, Inc.
2
and fL, chromaticity (x and y), and correlated color temperature.
LSS-100P Package Contents
1 LSS-100P Unit
1 POE Power Injector
1 Wall / Ceiling Mount (2 pieces)
1 LSS-100P User Manual
4