Image-sensor signal-processing circuit

Abstract

By flexibly coping with both image sensors of a CCD sensor and a CMOS sensor without providing any external circuit, a signal processing is performed. In a sensor selecting switch provided in an image-sensor signal-processing circuit, first and fourth switches are turned on when the CMOS sensor is connected, and second and third switches are turned on when the CCD sensor is connected. The sensor selecting switch is controlled by a control signal generated in a control circuit, based on sensor selection data which is stored in a register and which is data for selecting the CCD or CMOS sensor. By so doing, even if polarity of an output signal of the image sensor is reversed, a normal signal is inputted to both inputs of the CDS amplifier, whereby it is possible to flexibly cope with both of the CCD and CMOS sensors.

1 . A slot timing synchronization method in a code division multiple access mobile communication system, said slot timing synchronizing method comprising the steps of: 
 transmitting from a base station a control signal via perch channels, a first section of one slot of said control signal being spread by a long period code assigned to said base station, a second section of said one slot being spread by a predetermined short period signal; and    in a mobile terminal, despreading said control signal by using said predetermined short period code, and conducting slot timing synchronization by using a correlation value obtained as a result of despreading, a spreading factor of said predetermined short period code being set to a value lower than a spreading factor of the long period code and a short period code spreading said first section.    
   
   
       2 .- 14 . (canceled)