A signal processing device of an endoscopy photographing lens comprises an image sensor, a converter, a latch, a digital signal processor and a frequency divider. A signal processing method comprises: using the image sensor to sense an image and continuously outputting a serial signal using the converter to convert the serial signal based on a clock signal so as to sequentially and alternately output an even-state parallel signal and an odd-state parallel signal using the frequency divider to generate a second frequency of which a frequency is half of a first frequency, and sequentially and alternately providing a first control signal and a second control signal using the latch to lock/release the even-state parallel signal based on the time points of the first control signal and the second control signal and using the digital signal processor to read the even-state parallel signal and the odd-state parallel signal at the same time for being combined and outputted to outside.一種內視鏡攝影鏡頭的信號處理裝置,主要具有一影像感測器、一轉換器、一閂鎖器、一數位訊號處理器以及一除頻器。在信號處理方法上主要係以該影像感測器感測一影像並持續輸出串列訊號;再以該轉換器依一時脈信號來轉換該串列訊號,而依序且輪流地輸出為一偶狀態並列訊號以及一奇狀態並列訊號;以該除頻器產生頻率為該第一頻率一半的一第二頻率,並依序且輪流地提供一第一控制訊號以及一第二控制訊號;以該閂鎖器依據該第一控制訊號及該第二控制訊號之時間點來閂鎖/釋放該偶狀態並列訊號;以該數位訊號處理器同時讀取該偶狀態並列訊號以及該奇狀態並列訊號,合併處理後向外輸出。10‧‧‧內視鏡攝影鏡頭的信號處理裝置11‧‧‧影像感測器21‧‧‧轉換器22‧‧‧輸出腳位221‧‧‧共用輸出腳位31‧‧‧閂鎖器41‧‧‧數位訊號處理器51‧‧‧除頻器
