Portable computerized data communication device

Abstract

In one embodiment, a portable computerized data communication device in a data communication system may include, for example, a user interface; a computerized system controlling operation of the device; a device housing having a normal closed condition defining an interior space within the device housing, and having an interior electrical connector within the interior space; and the device having an open condition providing access to the interior space while the device housing is in the open condition to enable connection with the interior electrical connector of a peripheral device equipping the device to perform a new function.

1 - 43 . (canceled) 
     
     
         44 . A handheld radio frequency (RF) wireless communications device, comprising:
 a user interface;   a processor operatively coupled to the user interface, the processor controlling operation of the device;   a rechargeable battery operatively coupled to the computerized system, the rechargeable battery powering the processor;   a device housing comprising an access opening; and   a cap releasably engaged with the device housing, the cap enclosing a memory that is operatively coupled to the processor,   wherein the handheld RF wireless communications device provides spread spectrum wireless communications, and   wherein the handheld RF wireless communications device performs provides voice communications and data communications.   
     
     
         45 . The handheld RF wireless communications device according to  claim 44 , wherein the cap forms a cover enclosing the access opening of the device housing and the memory. 
     
     
         46 . The handheld RF wireless communications device according to  claim 44 , wherein the user interface comprises a display. 
     
     
         47 . The handheld RF wireless communication device according to  claim 46 , wherein user interface comprises alphanumeric keys. 
     
     
         48 . The handheld RF wireless communications device according to  claim 47 , wherein the memory comprises a removable memory card. 
     
     
         49 . The handheld RF wireless communications device according to  claim 48 , wherein the user interface comprises a voice-activated user interface. 
     
     
         50 . The handheld RF wireless communications device according to  claim 44 , wherein the handheld RF wireless communications device supports facsimile communications. 
     
     
         51 . The handheld RF wireless communications device according to  claim 44 , wherein the memory comprises a removable memory card. 
     
     
         52 . The handheld RF wireless communications device according to  claim 51 , wherein the removable memory card enables the voice communications and/or the data communications. 
     
     
         53 . The handheld RF wireless communications device according to  claim 51 , wherein the handheld RF wireless communications device provides a CCD device. 
     
     
         54 . The handheld RF wireless communications device according to  claim 44 , wherein the handheld RF wireless communications device provides a scanner. 
     
     
         55 . The handheld RF wireless communications device according to  claim 54 , wherein the scanner comprises a CCD scanner. 
     
     
         56 . The handheld RF wireless communications device according to  claim 44 , wherein the handheld RF wireless communications device provides a CCD device. 
     
     
         57 . The handheld RF wireless communications device according to  claim 56 , comprising the handheld RF wireless communications device provides a sleep mode to conserve battery power. 
     
     
         58 . The handheld RF wireless communications device according to  claim 57 , wherein the handheld RF wireless communications device provides electrostatic discharge protection. 
     
     
         59 . The handheld RF wireless communications device according to  claim 56 , comprising the handheld RF wireless communications device provides a standby mode and/or a sleep mode that is time-duration triggered to conserve battery power. 
     
     
         60 . The handheld RF wireless communications device according to  claim 44 , wherein the handheld RF wireless communications device provides a reader of indicia of information. 
     
     
         61 . The handheld RF wireless communications device according to  claim 44 , wherein the handheld RF wireless communications device provides electrostatic discharge protection. 
     
     
         62 . The handheld RF wireless communications device according to  claim 44 , comprising the handheld RF wireless communications device provides a sleep mode to conserve battery power. 
     
     
         63 . The handheld RF wireless communications device according to  claim 44 , comprising the handheld RF wireless communications device provides a standby mode and/or a sleep mode that is time-duration triggered to conserve battery power.