Hitachi, Ltd.

Samsung Electronics Co., Ltd.

Yukinori Asada

Fumiharu Nakahara

Shigeyuki Sudo

Yoshinori Chida

Takeshi Hoshino

Yukinobu Maruyama

There is disclosed a handoff control method for registering a CDMA mobile station in such a way that battery power wastage is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S), idle handoff is inhibited (step S). The mobile station shifts to a registration-waiting sleep mode (step Sand state ST) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step Stimes out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

Handoff control method and a mobile station employing the same

A pointing device is placed in a through hole provided on an outer case of the portable information terminal. The terminal includes a fingerplate attached to a through hole via a hinge; an image pick-up element placed on a circuit board; a condensing lens that forms an image on an outer surface of the fingerplate on an image pick-up plane of the image pick-up element; and a light emitting device that irradiates the outer surface of the fingerplate with illumination light, and takes the image of a pattern such as a fingerprint that touches the outer surface of the fingerplate by using the image pick-up element. When the fingertip moves, the image taken by the image pick-up element changes and the pointer displayed on a display screen is moved in a direction according to the movement of the fingertip.

Pointing device and portable information terminal using the same

There is disclosed a handoff control method for registering a CDMA mobile station in such a way that the waste of battery power is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S), idle handoff is inhibited (step S). The mobile station shifts to a registration-waiting sleep mode (step Sand state ST) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step Stimes out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

There is disclosed a handoff control method for registering a CDMA mobile station in such a way that the waste of a power is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S), idle handoff is inhibited (step S). The mobile station shifts to a registration-waiting sleep mode (step Sand state ST) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step Stimes out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

A pointing device is placed in a through hole provided on an outer case of the portable information terminal. The portable information terminal includes a fingerplate attached to a through hole via a hinge; an image pick-up element placed on a circuit board; a condensing lens that forms an image on an outer surface of the fingerplate on an image pick-up plane of the image pick-up element; and a light emitting device that irradiates the outer surface of the fingerplate with illumination light, and takes the image of a pattern such as a fingerprint of a fingertip that touches the outer surface of the fingerplate by using the image pick-up element. When the fingertip moves while touching the fingerplate, the image taken by the image pick-up element changes and the pointer displayed on a display screen is moved in a direction according to a change direction and by a distance corresponding to a quantity of change.

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Yokohama, Japan

Yukinori Asada