Extron QUESTIONS WITH ANSWERS
TMDS - CORRECT ANSWERS ✔✔Transition Minimized differential
signaling. RED, GREEN BLUE AND CLOCK
DDC - CORRECT ANSWERS ✔✔Display Data Channel. A two way
communication between source and sink for negotiating format and
resolution. It transmit EDID info
EDID - CORRECT ANSWERS ✔✔Extended Display Identification
Data. Information about displays supported features and capabilities,
such as device ID. aspect ratio, serial number.. etc
HPD - CORRECT ANSWERS ✔✔Hot plug Detect. Recognize
connection between source and sink
CEC - CORRECT ANSWERS ✔✔Consumer Electronics Control. An
HDMI feature that allows user to control device settings
Mathematically lossless Compression - CORRECT ANSWERS
✔✔Allows original data to be perfectly reconstructed from its
compressed state
,Visually Lossless Compression - CORRECT ANSWERS ✔✔Decoded
image is not reconstructed mathematically and appears the same as
original
Lossy Compression - CORRECT ANSWERS ✔✔data compression
techniques in which some amount of data is lost. This technique
attempts to eliminate redundant information.
Latency - CORRECT ANSWERS ✔✔Time it takes for a bit to travel
from its sender to its receiver. Its due to scaling, encoder
processing...etc
SMPTE - CORRECT ANSWERS ✔✔Society of Motion Picture and
Television Engineers. 1/2 major media standard such as TV
production, picture filming, digital cinema. They have established
over 800 standards and other recommended practices. TraTde-mark
the color bar test
DCI - CORRECT ANSWERS ✔✔Digital Cinema Initiatives.
Comprised of major motion picture studio to establish specifications
for digital cinema systems to ensure quality, reliability.
,NTSC - CORRECT ANSWERS ✔✔National Television System
Committee standard used in North America and most of South
America, 30 fps. ANALOG TV Broadcasting standard
PAL - CORRECT ANSWERS ✔✔Phase Alternating Line standard
mostly used overseas, 25 frames are transmitted each second.
ANALOG TV Broadcasting standard
SECAM - CORRECT ANSWERS ✔✔Sequential Color avec Memory
standard for French and Asian broadcast television. ANALOG TV
Broadcasting standard
ATSC - CORRECT ANSWERS ✔✔Advanced Television Systems
Committee. DIGITAL TV standard. Used in North America, Mexico
and Canada. Establishing standard for HDTV.
DVB - CORRECT ANSWERS ✔✔Digital Video Broadcasting. The
terrestrial broadcasting standard adopted by the United Kingdom
and other European countries.DIGITAL TV standard
ISDB - CORRECT ANSWERS ✔✔Integrated Services Digital
Broadcasting. Japanese standard for transporting DIGITAL TV.
, DTMB - CORRECT ANSWERS ✔✔Digital Terrestrial Multimedia
Broadcast. DIGITAL TV standard for China, Cuba and HK
HDCP - CORRECT ANSWERS ✔✔High-Bandwidth Digital Content
Protection. A mechanism developed by Intel to only allow media to
be played with HDCP approved devices, preventing unauthorized
copying of protected content.
Audio - CORRECT ANSWERS ✔✔Technical term referring to the
reproduction of sound as an electrical signal coming from electronic
device.
Critical Listening - CORRECT ANSWERS ✔✔Engineer POV for
technical and physical aspect of sound, frequency, range and pitch
Object vs subjective listening - CORRECT ANSWERS ✔✔listening is
a neutral and unbiased evaluation that takes facts and measurements
into consideration without influence from personal bias. Subjective
listening is an evaluation that does induce the listener's personal
bias, but may not lend to verified facts and measurements.
Frequency for human ear - CORRECT ANSWERS ✔✔20-20,000 hz;
cycle per second. High pitch= high frequency, vice versa for low
frequency
TMDS - CORRECT ANSWERS ✔✔Transition Minimized differential
signaling. RED, GREEN BLUE AND CLOCK
DDC - CORRECT ANSWERS ✔✔Display Data Channel. A two way
communication between source and sink for negotiating format and
resolution. It transmit EDID info
EDID - CORRECT ANSWERS ✔✔Extended Display Identification
Data. Information about displays supported features and capabilities,
such as device ID. aspect ratio, serial number.. etc
HPD - CORRECT ANSWERS ✔✔Hot plug Detect. Recognize
connection between source and sink
CEC - CORRECT ANSWERS ✔✔Consumer Electronics Control. An
HDMI feature that allows user to control device settings
Mathematically lossless Compression - CORRECT ANSWERS
✔✔Allows original data to be perfectly reconstructed from its
compressed state
,Visually Lossless Compression - CORRECT ANSWERS ✔✔Decoded
image is not reconstructed mathematically and appears the same as
original
Lossy Compression - CORRECT ANSWERS ✔✔data compression
techniques in which some amount of data is lost. This technique
attempts to eliminate redundant information.
Latency - CORRECT ANSWERS ✔✔Time it takes for a bit to travel
from its sender to its receiver. Its due to scaling, encoder
processing...etc
SMPTE - CORRECT ANSWERS ✔✔Society of Motion Picture and
Television Engineers. 1/2 major media standard such as TV
production, picture filming, digital cinema. They have established
over 800 standards and other recommended practices. TraTde-mark
the color bar test
DCI - CORRECT ANSWERS ✔✔Digital Cinema Initiatives.
Comprised of major motion picture studio to establish specifications
for digital cinema systems to ensure quality, reliability.
,NTSC - CORRECT ANSWERS ✔✔National Television System
Committee standard used in North America and most of South
America, 30 fps. ANALOG TV Broadcasting standard
PAL - CORRECT ANSWERS ✔✔Phase Alternating Line standard
mostly used overseas, 25 frames are transmitted each second.
ANALOG TV Broadcasting standard
SECAM - CORRECT ANSWERS ✔✔Sequential Color avec Memory
standard for French and Asian broadcast television. ANALOG TV
Broadcasting standard
ATSC - CORRECT ANSWERS ✔✔Advanced Television Systems
Committee. DIGITAL TV standard. Used in North America, Mexico
and Canada. Establishing standard for HDTV.
DVB - CORRECT ANSWERS ✔✔Digital Video Broadcasting. The
terrestrial broadcasting standard adopted by the United Kingdom
and other European countries.DIGITAL TV standard
ISDB - CORRECT ANSWERS ✔✔Integrated Services Digital
Broadcasting. Japanese standard for transporting DIGITAL TV.
, DTMB - CORRECT ANSWERS ✔✔Digital Terrestrial Multimedia
Broadcast. DIGITAL TV standard for China, Cuba and HK
HDCP - CORRECT ANSWERS ✔✔High-Bandwidth Digital Content
Protection. A mechanism developed by Intel to only allow media to
be played with HDCP approved devices, preventing unauthorized
copying of protected content.
Audio - CORRECT ANSWERS ✔✔Technical term referring to the
reproduction of sound as an electrical signal coming from electronic
device.
Critical Listening - CORRECT ANSWERS ✔✔Engineer POV for
technical and physical aspect of sound, frequency, range and pitch
Object vs subjective listening - CORRECT ANSWERS ✔✔listening is
a neutral and unbiased evaluation that takes facts and measurements
into consideration without influence from personal bias. Subjective
listening is an evaluation that does induce the listener's personal
bias, but may not lend to verified facts and measurements.
Frequency for human ear - CORRECT ANSWERS ✔✔20-20,000 hz;
cycle per second. High pitch= high frequency, vice versa for low
frequency
