초록 ▼

A wrist-worn paging receiver provides an incoming message alarm by contacting the wrist of the user by the use of rotating cam lobes that reside inside the paging receiver and that are separated from actual contact with the user\s skin by a thin, flexible membrane. Various alarm modes are provided b

A wrist-worn paging receiver provides an incoming message alarm by contacting the wrist of the user by the use of rotating cam lobes that reside inside the paging receiver and that are separated from actual contact with the user\s skin by a thin, flexible membrane. Various alarm modes are provided by controlling the ratio of the period of rotation to period of rest of the cam lobes mounted on a cam shaft that is driven by an electric motor inside the paging receiver.

대표청구항 ▼

An alarm system for a device worn against a skin surface of a user, comprising: a case body having a front surface and a back surface; a motor arranged inside said case body; cam means arranged to be rotated by said motor and mounted in said body so that a rotating portion of said cam means extends

An alarm system for a device worn against a skin surface of a user, comprising: a case body having a front surface and a back surface; a motor arranged inside said case body; cam means arranged to be rotated by said motor and mounted in said body so that a rotating portion of said cam means extends beyond the back surface of said case body; a flexible membrane attached to said case body and covering a portion of said back surface whereat said cam means extends; a strap for attaching said case body to a user so that said flexible membrane is in contact with a skin surface of the user; and alarm mode control means for controlling a ratio of rotation periods and rest periods of said motor, wherein said alarm mode control means comprises a message alarm processor for controlling said motor in accordance with mode information included in a wireless transmitted signal received by the device.