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About operation of the dvd player 96, Positioning technology 96, Positioning by gps – Pioneer CNDV-40R User Manual

Page 98: Positioning by dead reckoning, Tion system, About operation of the dvd player, Positioning technology

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96

Appendix

Reverse frame by frame playback and
reverse slow motion playback (in case
of XDV-P9 and XDV-P90)

You cannot do this with the Remote Control
included with AVIC-9DVD. However, you can
operate this function using the Remote Control
included with the DVD player or the AV Head
Unit.

Switching DVD information screen
(Built-in DVD player only)

Press the DISP button while the Operation mode
switch is set to “DVD”. The display switches over
as you press the button.

About operation of the DVD
player

Operation of the navigation’s built-in
DVD drive

DVD videos and CDs can be played on AVIC-
9DVD and AVIC-90DVD.
About operation of the built-in DVD player of the
navigation system, see instruction manuals
below:

❒ You cannot play DVD-Video with the built-in

DVD-ROM drive of AVIC-80DVD and AVIC-
88DVD.

Operation of other Pioneer DVD players
(Single DVD player/Multi-DVD player)

Refer to the following manual and section for the
detailed operation:
See “DVD” in Chapter 5 on this manual.
See “Used when DVD is operated” in Chapter 5

in this manual.

• Refer to “Operation manual” of the Pioneer

DVD player (S-DVD/M-DVD).

Refer to “DVD Operation Reference Table” in

this manual.

Positioning Technology

The Navigation System accurately measures your
current location by combining the positioning by
GPS and by Dead Reckoning.

Positioning by GPS

The Global Positioning System (GPS) uses a net-
work of satellites orbiting the Ground. Each of the
satellites, which orbit at a height of 68,900,000
feet (21,000 km), continually broadcasts radio
signals giving time and position information. This
ensures that signals from at least three can be
picked up from any open area on the ground’s
surface.
The accuracy of the GPS information depends on
how good the reception is. When the signals are
strong and reception is good, GPS can determine
latitude, longitude, and altitude for accurate posi-
tioning in three dimensions. But if signal quality
is poor, only two dimensions, latitude and longi-
tude, can be obtained and positioning errors are
somewhat greater.

Positioning by dead reckoning

The 3D Hybrid Sensor in the navigation unit also
calculates your position. The current location is
measured by detecting driving distance with the
speed pulse, the turning direction with the Gyro-
sensor, and inclination of the road with the G
sensor.
The 3D Hybrid Sensor can even calculate
changes of altitude, and corrects for discrepan-
cies in the distance travelled caused by driving
along winding roads or up slopes. Also, the Navi-
gation System learns the driving conditions and
stores information in the memory; thus, as you
drive more, the precision of the positioning
becomes more accurate.

AVIC-9DVD

Refer to the DVD section in
the “Operation Manual” pro-
vided with AVIC-9DVD.

AVIC-90DVD

Refer to the DVD section in
the respective “Hardware
Manual”.

CD-R10,
CD-R11 (sold
separately)

Refer to “DVD Operation
(Keyfinder2)”section in the
respective “Owner's Manual”.