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
Cantilevered probe detector with piezoelectric element
Systems and methods for flow mirroring with network-scoped connection-oriented sink
Communication device
Active pulse blood constituent monitoring
Organic electroluminescent element
Laser marking of a card
High brightness laser diode module
  Randomly Featured Patents
Packet expansion with preservation of original cyclic redundancy code check indication
8-[3-amino-piperidin-1-yl]-xanthines, the preparation thereof and their use as pharmaceutical compositions
Compensation for fluid viscosity in automatic transmission friction element engagement
Dispensing, storage, control and inventory system with medication and treatment chart record
Ignition assembly adapter system
Street furniture unit
Aqueous suspension of bentonite and its use for coating thermal insulating
Depth insensitive accumulator for undersea hydraulic systems
Positron emission tomography scanner
Command latency systems and methods