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Miwon Co., Ltd.

Kyung Soon Choi

Min S Han

E Nam Hwang

Dae K Joo

Hong K Choi

The present invention relates to a touch user interface of an imaging apparatus such as a smart TV. The present invention relates to a user interface method and to an imaging apparatus, in which various menus required for implementing functions provided by the imaging apparatus such as a remote controller command, content, application, web and a TV channel are structured to be fit to two or more menu search modes and correspond respectively to two or more independent touch regions, so that the whole process, from a menu and search mode selection to a final menu item selection, can be carried out by a single touch movement without viewing a remote controller, and the independent touch regions and dependent touch regions are divided to allow for efficient use of the input sensor of the remote controller, having a narrow touch surface.

Touch user interface method and imaging apparatus

A process for the preparation of .alpha.-L-aspartyl-L-phenylalanine methyl ester in high yield, which comprises the steps of esterifying L-phenylalanine with methanol while undergoing continuous evaporation to remove the water formed during esterification, coupling the produced L-phenylalanine methyl ester with N-formyl-L-aspartic anhydride, deformylating the produced N-formyl-L-aspartyl-L-phenylalanine methyl ester, crystallizing the formed .alpha.-L-aspartyl-L-phenylalanine methyl ester as .alpha.-L-aspartyl-L-phenylalanine methyl ester hydrochloric acid salt, recovering the first .alpha.-L-aspartyl-L-phenylalanine methyl ester hydrochloric acid salt, esterifying .alpha.-L-aspartyl-L-phenylalanine in the filtrate to produce the second .alpha.-L-aspartyl-L-phenylalanine methyl ester, and combining the first and second .alpha.-L-aspartyl-L-phenylalanine methyl ester product.

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Seoul, South Korea

Kyung Soon Choi