Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus for transmitting positioning signal, positioning system including the apparatus, and system for transmitting positioning signal










Image Number 14 for United States Patent #7817090.

An apparatus that can transmit a signal enabling higher accuracy of calculating positional information is provided. A transmitting apparatus transmitting a positioning signal includes an oven controller crystal oscillator (OCXO) having a thermostatic oven that keeps the temperature of a quartz resonator constant and oscillates such that variation in output frequency caused by the ambient temperature change is minimized, a voltage controlled oscillator (VCO) outputting a signal modulated in accordance with the signal from OCXO, multipliers, a code generator outputting code patterns for respectively identifying each of artificial satellites on which the transmitting apparatus is mounted to multiplier, a memory storing a navigation message, a transmitting portion, and an antenna.








 
 
  Recently Added Patents
Utility knife
Position and orientation measurement apparatus, position and orientation measurement method, and storage medium
Electronic flash device
Method for selective deposition of a semiconductor material
Data encoding and decoding apparatus and method thereof for verifying data integrity
Print processing method, print relay server, control method, and storage medium to reserve print data
Illumination apparatus
  Randomly Featured Patents
Program execution system, program execution device and recording medium and computer executable program therefor
Monitor
Temperature compensation circuit and method for sensing memory
Process for the manufacture of objects with small complex cross-sections
Height adjustment arrangement for seats, particularly motor vehicle seats
Economical skin-pattern-acquisition and analysis apparatus for access control, systems controlled thereby
Heavy-duty decorative shelving
Programmable PWM stretching for tachometer measurement
Cosmetic container
Apparatus for and method of providing data to an external application