Resources Contact Us Home
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
Navigation device, navigation method, and navigation program
Plants and seeds of hybrid corn variety CH260114
Address generation unit for accessing a multi-dimensional data structure in a desired pattern
Digital photographing apparatus, method of controlling the same, and recording medium for the method
Electron-beam lithography method with correction of line ends by insertion of contrast patterns
Display device and method of repairing display device
Nanoparticles in a flash memory using chaperonin proteins
  Randomly Featured Patents
Machine readable coded data with distributed encoding
Catheter system for controlling a patient's body temperature by in situ blood temperature modification
Hydrogen sampler for molten metal and method
Light emitting diode driver and image forming device including the same
System and method of self-discovery and self-calibration in a video conferencing system
Multilayer piezoelectric element and injector using the same
System and method for providing alternate AC voltage
Test pattern generator
Solar cell electrolysis of water to make hydrogen and oxygen
Method and device for delivering heat to hollow body organs