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
Patient programmer with automated MRI compatibility verification for active implantable medical device
Cell transport system comprising a homogeneous mixture of agarose and agarase
Memory device and method for dynamic random access memory having serial interface and integral instruction buffer
Transmitter and receiver for streaming media including packet padding
Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
Method and system for routing telephony communications together with modified calling party identifier information
Multistable electromagnetic actuators
  Randomly Featured Patents
Semiconductor integrated circuit device and test method thereof
Discharge lamp for dielectric barrier discharges, with overhanging discharge electrode sections
Hydroxylansoprazole compositions and methods
Surface polishing method and apparatus wherein axis of autorotation of workpiece is revolved about an axis within circumscribed circle of the workpiece
Spring type projectile projecting device
Socket for manual tool
Microcrystalline monolithic carbon material
Anthurium plant named `Red King`
Flexible hub assembly having a hub for clamping a shaft
Digital mixer