Invention Grant
- Patent Title: Semiconductor laser modulation driving apparatus and image forming apparatus
- Patent Title (中): 半导体激光调制驱动装置和图像形成装置
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Application No.: US11079381Application Date: 2005-03-15
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Publication No.: US07671882B2Publication Date: 2010-03-02
- Inventor: Dan Ozasa , Masaaki Ishida , Yasuhiro Nihei , Atsufumi Omori
- Applicant: Dan Ozasa , Masaaki Ishida , Yasuhiro Nihei , Atsufumi Omori
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-081468 20040319
- Main IPC: B41J2/435
- IPC: B41J2/435 ; B41J2/47
Abstract:
A semiconductor laser modulation signal is generated for modulating a semiconductor laser. The semiconductor laser is driven based on the semiconductor laser modulation signal. An output impedance of a semiconductor laser modulation signal generating unit and an input impedance of a semiconductor laser driving unit are corrected. The semiconductor laser modulation signal is transmitted as a low amplitude differential signal, from the semiconductor laser modulation signal generating unit to the semiconductor laser driving unit.
Public/Granted literature
- US20050213623A1 Semiconductor laser modulation driving apparatus and image forming apparatus Public/Granted day:2005-09-29
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