Siemens Rolm Communications Inc.

Siemens Business Communication Systems, Inc.

Rolm Company

Siemens Palm Communication Inc.

Mary E Kingsbury

Wayne E McKinnon

David E Bryant

Erich C Elkins

Doug A Erwin

William McRight

Stefan Hillenmayer

Ulrich Skrypalle

Charles Elbert Sparks, Jr

The interconnection mechanism preferably attaches a display unit to the cover of a telephone in a manner that allows the display unit to be rotated relative to the telephone. The interconnection mechanism includes a rotation edge on the telephone cover that engages with a rotation notch on the display unit to define an axis of rotation. The mechanism also includes a cantilever beam on the telephone that applies a force against a curved surface of the display unit. The cantilever beam presses the rotation notch of the display unit against the rotation edge of the cover. The force from the cantilever beam also provides a slight, uniform resistance against the rotation of the display unit. The display unit also includes a pair of snaps that engage with a pair of curved surfaces on the cover to lock the display unit into the cover.

Interconnection mechanism for a tiltable telephone display unit

Telephone key expansion unit

Telephone

A light transmission device includes a multiplicity of lightpipes of differing lengths wherein light output from each of the lightpipes has substantially a same intensity when light applied to an input end of each of the lightpipes has substantially another same intensity. In accordance with a preferred embodiment of the present invention, an area of a surface of the input end of each of the lightpipes is textured and the size of the area which is textured is varies from lightpipe to lightpipe. A method in accordance with the invention transmits light through lightpipes of different lengths. The light transmittivity of each of the lightpipes is regulated so that the light output from each of the lightpipes has substantially the same intensity.

Multiple lightpipe device

A lightpipe which outputs light in a wide angle output pattern. An embodiment of the inventive lightpipe has a longitudinal cross section which has at least one section with a varying width. In addition, a preferred embodiment of the inventive lightpipe has a section with increasing width of the cross section near an input end of the lightpipe and a section with decreasing width of the cross section near an output end of the lightpipe.

Lightpipe providing wide angle output

Growing community of inventors

Dallas, TX, United States of America

Mary E Kingsbury