发明授权
- 专利标题: Recording apparatus
- 专利标题(中): 记录装置
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申请号: US649851申请日: 1984-09-12
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公开(公告)号: US4614954A公开(公告)日: 1986-09-30
- 发明人: Morio Ohta , Shizuo Tsuchiya , Yoshito Nakano , Masaru Aikawa , Seiji Asaumi
- 申请人: Morio Ohta , Shizuo Tsuchiya , Yoshito Nakano , Masaru Aikawa , Seiji Asaumi
- 申请人地址: JPX Tokyo JPX Tokyo
- 专利权人: Casio Computer Co., Ltd.,Casio Electronics Mfg. Co. Ltd.
- 当前专利权人: Casio Computer Co., Ltd.,Casio Electronics Mfg. Co. Ltd.
- 当前专利权人地址: JPX Tokyo JPX Tokyo
- 优先权: JPX59-8607 19840123; JPX59-64753 19840331
- 主分类号: G01D15/14
- IPC分类号: G01D15/14 ; G06K15/12 ; H04N1/036 ; H04N1/193 ; H04N1/40 ; G01D9/42 ; G01D15/06 ; G02F1/13
摘要:
In a recording apparatus of this invention, liquid crystal light shutter operates by using the double frequency drive. The double frequency drive employs a higher frequency f.sub.H and lower frequency f.sub.L. The dielectric anisotropy becomes positive in the case of the lower frequency f.sub.L than crossover frequency f.sub.C and becomes negative in the case of the higher frequency f.sub.H than the frequency f.sub.C of liquid crystal material. The driver circuit of liquid crystal light shutter includes a delay circuit (146). Both a recording data delayed through the delay circuit (146) and a recording data formed without going through the delayed circuit (146) are produced in an LSI, to be supplied to write selecting electrodes and signal electrodes of the liquid crystal light shutter, thereby driving the liquid crystal light shutter in a time sharing manner.
公开/授权文献
- US5617024A Flux focusing eddy current probe 公开/授权日:1997-04-01
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