Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Automatic-switching wireless communication device










Image Number 12 for United States Patent #7826805.

A base unit and a handset comprise a wireless part, a control part, and a transmission (151) and reception part (150), respectively. Communications are switched by either of the two ways: PTT switching and tone generation in the base unit, and tone detection in the handset or PTT switching in the base unit, and voice detection in the handset. It is preferable that the transmission (151) and reception (150) part of the handset includes a single transducer type headphone. It is also preferable that photo-coupler (41, 43) and a photo-switch (42) are provided at connection point of signal paths between the transmission (151) and reception part (150), the control part, and between the control part and the wireless part.








 
 
  Recently Added Patents
Non-volatile memory and method having efficient on-chip block-copying with controlled error rate
Methods and apparatus for imaging in conjunction with radiotherapy
Low powered activation arrangement and method thereof
Processing color and panchromatic pixels
Pattern transfer apparatus and method for fabricating semiconductor device
Process for the preparation of diene polymers of statistical vinylarene-diene copolymers
Toy ball
  Randomly Featured Patents
Process and device for the quantity determination of small amounts of gaseous components in a gas mixture
Extrusion die for ceramic honeycomb structures
Integrated circuit card for use in a communication terminal
Sliding case mounting structure
Signal receiver
Method for prosody generation by unit selection from an imitation speech database
Fiber-reinforced composite material, method for manufacturing the same, and applications thereof
Lid handle for an article of cookware
Method and apparatus for wireless transfer of chemical-mechanical planarization measurements
Paddle