公开(公告)号：US10766274B2

公开(公告)日：2020-09-08

申请号：US16196141

申请日：2018-11-20

申请人： FUJIFILM Corporation

发明人： Takeshi Fujii ,  Hirofumi Katsura ,  Hiroyuki Uchiyama

IPC分类号： B41J2/47 ,  B41J2/45 ,  G03B27/00 ,  G03D5/06 ,  G03B17/52 ,  B41J2/447 ,  G03B27/72

摘要： A pulse signal is detected from an encoder signal of a rotary encoder. The detected pulse signal is used as a signal for controlling a light exposure timing of a line type light exposure head and is used for detecting a transport speed of an instant film. The light exposure head sequentially performs light exposure for a line image on the transported instant film in synchronization with each pulse signal detected from the encoder signal, and a density correction unit corrects an amount of light emission of the light exposure head depending on the transport speed of the instant film.

公开(公告)号：US10900813B2

公开(公告)日：2021-01-26

申请号：US16210214

申请日：2018-12-05

申请人： FUJIFILM Corporation

发明人： Takeshi Fujii ,  Hirofumi Katsura ,  Hiroyuki Uchiyama

IPC分类号： G01D5/244 ,  B41J2/45 ,  G03B17/50 ,  B41J2/21 ,  G01D5/347 ,  G03C3/00

摘要： An encoder signal processing device, a printer, a printer-equipped imaging apparatus, and an encoder signal processing method that can remove the effect of a noise signal mixed with an encoder signal and favorably deal with a case where an original pulse signal is lost from the encoder signal are provided. An effective detection period setting unit 523 sets an effective detection period for detecting a subsequent pulse signal, each time a pulse signal detection unit 522 detects a pulse signal from an encoder signal. The pulse signal detection unit 522 detects the pulse signal only within the set effective detection period. In a case where the pulse signal detection unit 522 does not detect the pulse signal within the effective detection period, a pulse signal generation unit 524 generates the pulse signal after the effective detection period.