Month of November 2001 - Page Number 8

Showing 71 - 80 of 290 from November 2001
Browse Prior Art Database
  1. 71.
    Many communication devices, including pagers, incorporate the use of a single screw or some type of positive fastener to retain a housing. The single screw or fastener is usually located in a side wall or wrner wall of the housing due to the nature of the interlock system. The screw or fastener head is almost always...
    IPCOM000005999D | Original Publication Date: 1990-Oct-01
  2. 72.
    The current line of pagers uses screw inserts and screws to fasten the back cover onto the pager housing (fig. la). Each pager also has a lanyard pin for an optional lanyard accessory. Both the screw insert and lanyard pin are secondary operations. Each part is manually press fit into the plastic pager housing prior...
    IPCOM000005998D | Original Publication Date: 1990-Oct-01
  3. 73.
    The reduction of parts is always an important factor in any design. Since the majority of our pagers require both a lighted display and an illuminated visual alert, it would often be advantageous to combine these functions so as to reduce the number of plastic parts and illuminating devices required. The incorporation...
    IPCOM000005997D | Original Publication Date: 1990-Oct-01
  4. 74.
    Communication devices, which incorporate interchangeable cells, must have a battery contact system to intercon- nect the negative and positive terminals. These contacts are usually single function in nature, used only to interconnect the primary or backup cells. In addition, many communication devices are now...
    IPCOM000005996D | Original Publication Date: 1990-Oct-01
  5. 75.
    The present trend in the communication industry is toward reduction of the product size. As the available wlume within the product is reduced it becomes more critical to protect sensitive components from mechanical shock and vibration. This reduction in size also limits the available antenna aperture.
    IPCOM000005995D | Original Publication Date: 1990-Oct-01
  6. 76.
    Display pagers often contain information which is proprietary to the pager users. This information could be financial data of a company, medical problem of a patient, or personal information such as phone numbers or addresses. Most pagers have a lock function, however, it only protects the locked messages from being...
    IPCOM000005994D | Original Publication Date: 1990-Oct-01
  7. 77.
    This invention relates to a POCSAG address bit error wrrection method for use in a pager. The invention provides for each address to have a unique number of allowable bit errors. Since it is possible to determine which of the ad- dresses are likely to false on a particular customer's implementation of POCSAG, falsing...
    IPCOM000005993D | Original Publication Date: 1990-Oct-01
  8. 78.
    In facilities where portable communications products (ie: Pagers and Walkie-Talkies) are used, inventoried, and/or manufactured, it is desirable to provide detection of the unauthorized removal of such communications products. Cur- rently, there is no known such security system.
    IPCOM000005992D | Original Publication Date: 1990-Oct-01
  9. 79.
    As paging products decrease in size, it becomes increasingly difficult to satisfy all of the radio design criteria since physical size is often an important design parameter. When designing a radio receiver for example, one of the most critical and challenging components to develop is the antenna. Common loop antennas...
    IPCOM000005991D | Original Publication Date: 1990-Oct-01
  10. 80.
    This invention allows a pager to automatically peak tune itself using an RSSI (received signal strength indicator) incorporated within the IF integrated circuit, A final IF integrated circuit with RSSI circuitry is used to detect the received strength of an externally generated RF signal. Under the control of a...
    IPCOM000005990D | Original Publication Date: 1990-Oct-01