Telecommunication terminal and device for projecting received information

• US 6,486,867 B1
• Filed: 06/03/1997
• Issued: 11/26/2002
• Est. Priority Date: 06/04/1996
• Status: Expired due to Term

• Current Assignee: Alcatel SA (Nokia Corporation)
• Original Assignee: Alcatel SA (Nokia Corporation)
• Inventors: Hörmann, Thomas, Kopp, Dieter
• Primary Examiner(s): Shankar, Vijay
• Application Number:
  US08/868,310
• Time in Patent Office: 2,002 Days
• Field of Search: 345/108, 345/84, 345/85, 345/175, 345/179, 345/180, 455/566, 455/550, 455/556, 455/557, 348/789, 348/838, 353/122
• US Class Current: 345/108
• CPC Class Codes: G02B 1/00 Optical elements characterised by the material of which they are made; Optical coatings for optical elements
• CPC Class Codes: G02B 26/08 for controlling the direction of light in light guides G02B6/35
• CPC Class Codes: G02B 26/0833 the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD G02B26/0825 takes precedence; micromechanical devices in general B81B
• CPC Class Codes: G09F 9/00 Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00
• CPC Class Codes: G09F 9/37 being movable elements G09F9/302 takes precedence
• CPC Class Codes: G09G 2370/18 Use of optical transmission of display information
• CPC Class Codes: G09G 3/001 using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP
• CPC Class Codes: G09G 3/34 by control of light from an independent source
• CPC Class Codes: G09G 3/346 based on modulation of the reflection angle, e.g. micromirrors micromirrors devices per se G02B26/0833
• CPC Class Codes: G09G 5/026 Control of mixing and/or overlay of colours in general G09G5/022 and G09G5/024 take precedence
• CPC Class Codes: H04B 1/06 Receivers
• CPC Class Codes: H04M 1/00 Substation equipment, e.g. for use by subscribers subscriber services or facilities provided at exchanges H04M3/00; prepayment telephone coin boxes H04M17/00; current supply arrangements H04M19/08
• CPC Class Codes: H04M 1/0272 for a projector or beamer module assembly constructional features of projectors per se G03B21/00; constructional details of projectors using electronic spatial light modulators per se H04N9/31
• CPC Class Codes: H04M 11/02 with bell or annunciator systems
• CPC Class Codes: H04M 11/06 Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
• CPC Class Codes: H04M 11/066 Telephone sets adapted for data transmision
• CPC Class Codes: H04N 1/00 Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
• CPC Class Codes: H04N 5/74 Projection arrangements for image reproduction, e.g. using eidophor
• CPC Class Codes: H04N 7/14 Systems for two-way working H04N7/12, H04N7/173 take precedence
• CPC Class Codes: H04N 9/31 Projection devices for colour picture display , e.g. using electronic spatial light modulators [ESLM]
• CPC Class Codes: H04N 9/3173 : wherein the projection device is specially adapted for enhanced portability

Abstract

There is known a telecommunication terminal with a miniature display for received, visually perceptible information, such as, for example, fax messages. In addition, a device is known for projecting computer images or TV images, the device comprising a so-called DMD chip (Digital Mirror Device). It is proposed to improve the aforedescribed telecommunication terminal (MS) by providing the terminal with projection means (DMD, FL) which can basically only be used for the device described above. In addition, the device described above is improved by being provided with an interface circuit for connection to a telecommunication terminal. Accordingly, the conventional means known in the field of computer technology and TV technology for projecting images are now used in or for a telecommunication terminal, especially in a mobile radio telephone (MS). With the received image data, images can be projected directly onto a projection screen, for example, onto a wall. Several people can view the images simultaneously. An output device, such as, for example, a printer for fax messages, is not required.

Claims

1. A telecommunication terminal (MS) comprising:

first means (RX) for receiving visually-perceptible information (VDAT)

second means including at least one optical lens (FL) for projecting the received information (VDAT) onto a projection surface; and

a processor for signal processing of voice data, characterized in that

the second means (DMD,FL) comprising a circuit (DMD) having an illuminatable and reflective optical switching matrix, and in that

the at least one optical lens (FL) projects the light reflected by the optical switching matrix onto the projection surface, and further in that

the optical switching matrix is a surface having N times M (N and M intergers) micro-mirrors, which are individually suspended by a semi-gimbal mount and which are deflected by means of the received information, and further in that

existing processor capacity of the processor for signal processing of voice data can be used to control the circuit (DMD).

2. A telecommunication terminal (MS) according to claim 1, characterized in that the terminal is a radio telecommunication terminal and that the first means comprises a radio receiver (RX), which receives short messages in order to project them onto the projection surface by means of the circuit (DMD).

3. A telecommunication terminal according to claim 1, characterized in that the terminal is a wire line telecommunication terminal and that the first means comprise a receiver for fax messages and/or video messages.

4. A telecommunication terminal (MS) according to claim 1, characterized in that it contains an optical fiber (OF), which guides light from an external light source (ELS) onto the micro-mirrors of the switching matrix.