Abstract: A satellite radio wave receiving processing unit 60 includes a front end 60a which receives a radio wave including a code signal transmitted from a satellite, and a baseband unit 64 which acquires the code signal from the received radio wave, in which the baseband unit identifies a pseudo-random code sequence used for performing spread spectrum to the code signal and a phase of the pseudo-random code sequence in a transmission period, identifies a code type of the code signal every time according to the transmission period, identifies, by comparing an array of the identified code type with a plurality of comparison arrays expected to appear as the array of the code type, a head timing of each code in the code signal according to a comparison array in which a result of the comparison satisfies a predetermined condition, and identifies each code in synchronization with the identified head timing.

Abstract: The communication terminal of one electronic still camera is connected to that of the other electronic still camera by means of a specific cable or infrared rays. The image data item to be transferred is selected from the image data items stored in the flash memory in the electronic still camera on the transmission side and the image data is displayed on the LCD. After determining the image data by pressing the shutter key in the key input section of one electronic still camera functioning as the master, the user specifies transmission or reception. The camera whose shutter has been pressed functions as a master and the other camera functions as a slave. In transmission, all or a given one of the image data items in the flash memory are transmitted to the slave camera. In reception, the image data is transmitted from the slave camera to the master camera. The received image data is stored in the flash memory via a DRAM.