Combined keypad and protective cover

• US 5,818,924 A
• Filed: 08/02/1996
• Issued: 10/06/1998
• Est. Priority Date: 08/02/1996
• Status: Expired due to Fees

• Current Assignee: Siemens Rolm Communications, Inc. (Siemens AG)
• Original Assignee: Siemens Business Communication Systems Inc. (Siemens AG)
• Inventors: King, Neal J., Jacobi, Eli
• Primary Examiner(s): Zele, Krista
• Assistant Examiner(s): SAINT SURIN, JACQUES M
• Application Number:
  US08/691,976
• Time in Patent Office: 795 Days
• Field of Search: 379/389, 379/93.19, 379/368, 379/428, 379/433, 379/434, 379/437, 379/388, 379/390, 379/391, 379/420, 379/422, 379/424, 455/90, 455/575
• US Class Current: 379/433.13
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/0245 using open/close detection
• CPC Class Codes: H04M 1/18 Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment H04M1/19 takes precedence
• CPC Class Codes: H04M 1/605 involving control of the receiver volume to provide a dual operational mode at close or far distance from the user
• CPC Class Codes: H04M 2250/22 including a touch pad, a touch sensor or a touch detector

Abstract

A mechanical keypad is attached to the outside of a protective cover. A switch allows a personal intelligent communicator to be operated either with the user interface of a mobile telephone handset or with a graphical user interface. When the cover is closed, the mechanical keypad serves for dialing telephone numbers. When the cover is open, the mechanical keypad is disabled, and the graphical user interface is revealed. The microphone and speaker of the personal intelligent communicator together operate as a speaker phone when the cover is open, and as a mobile telephone handset when the cover is closed. By use of an override switch, the personal intelligent communicator can also operate as a speaker phone when the cover is open.

Claims

1. A personal communications device comprising

a touch screen;

a data processor;

telecommunications capabilities including a telephone;

a cover that fits over the touch screen, said cover having a bottom surface and a top surface, said bottom surface being adjacent to said touch screen and said top surface including a keypad,

wherein when said cover is closed, said touch screen is entirely covered by said cover, and said keypad is operable to dial said telephone.

2. A personal communications device as in claim 1, in which said keypad further comprises means for inputting data.

3. A personal communications device as in claim 1, in which said telecommunications apparatus includes facsimile capabilities.

4. A method of operating a personal intelligent communicator, said personal intelligent communicator comprising a touch screen, a data processor, a telephone, a cover that opens and closes to expose and entirely cover, respectively, the touch screen, and a bi-simplex-duplex module for changing the operation of said telephone, said method comprising the steps of:

when said cover is open and said touch screen is exposed, operating said telephone in a speaker phone state; and

when said cover is closed and said touch screen is covered, operating said telephone in a handset state.

5. A method of operating a personal intelligent communicator, said personal intelligent communicator comprising a touch screen, a data processor, a telephone, a cover that opens and closes to expose and entirely cover, respectively, the touch screen, and a bi-simplex-duplex module for changing the operation of said telephone, said method comprising the steps of:

when said cover is open and said touch screen is exposed, operating said telephone in a speaker phone state; and

when said cover is closed and said touch screen is covered, operating said telephone in a handset state, wherein when said telephone is in said speaker phone state, the following steps are performed;

connecting, by a mode switch, a control path from a keypad signaling module to a numeric signaling module, whereby the touch-sensitive screen can be used for numeric input functions including dialing the telephone;

switching, by said mode switch, said bi-simplex-duplex module to bi-simplex operation; and

switching, by said mode switch, from a keypad signaling module to a numeric signaling module.

6. The method of claim 5 wherein when said mode switch switches said bi-simplex-duplex module to bi-simplex mode, speaker volume control and microphone sensitivity are set to predetermined levels.

7. The method of claim 5 wherein, when said telephone is in said handset state, the following steps are performed:

connecting, by a mode switch, a control path from the keypad to a numeric signaling module, whereby the keypad can be used for numeric input functions including dialing the telephone; and

switching, by said mode switch, said bi-simplex-duplex module to duplex operation.

8. The method of claim 7 wherein when said mode switch switches said bi-simplex-duplex module to duplex mode, speaker volume control and microphone sensitivity are set to predetermined levels.