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
Method for forming a molded component for an item
Miniature rose plant named `KORpot021`
Focused search using network addresses
Automated system for load acquisition and engagement
Ultrasonic diagnostic apparatus
Landing gear with composite leaf spring
Preferential mechanical unloading during anti-tachycardia pacing
  Randomly Featured Patents
Electric resistance element, which can be electromechanically regulated
I-NRZI modulator using parallel-bit-word at precoder, as for inclusion in magnetic recording apparatus
Mapping transport streams
Coil component and method of manufacturing the same
Foamed liquid crystal polymer film/sheet having improved flexibility and cell uniformity
Process for producing an isolated planar high speed pin photodiode
Arrangement of prestressing tendons in a pressure tunnel
Communication apparatus provided with electronic address book
Dual core transformer and backlight driving unit for liquid crystal display device including the same
Drilling and hole enlargement device