Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Malek; Charles J.
Address:
Crystal Lake, IL
No. of patents:
16
Patents:












Patent Number Title Of Patent Date Issued
5822313 Seamless handover in a cordless TDMA system October 13, 1998
A technique is disclosed for allowing a seamless handover between base stations in a TDMA controller as a telephone handset is transported from one base station's area to another. The disclosed circuitry enables the TDMA controller to assess the quality of the handover before switching t
5822308 Multi-tasking sequencer for a TDMA burst mode controller October 13, 1998
A multi-tasking, dynamically controlled micro-sequencer for use in a TDMA communication system is described. Rather than the output of the sequencer being solely a linear sequence of instructions in a microcode RAM, the output of the sequencer is augmented by an output of finite state ma
5802076 Audio error mitigation technique for a TDMA communication system September 1, 1998
An audio error mitigation technique for a TDMA communication system is disclosed. An audio error is assumed if any one of the following criteria is met: a detection of a CRC error in the control data or audio data within a slot; the received signal strength is below a certain threshold;
5729543 Sequencer employing conditional logic in a TDMA burst mode controller March 17, 1998
A multi-tasking, dynamically controlled micro-sequencer for use in a TDMA communication system is described. Rather than the output of the sequencer being solely a linear sequence of instructions in a microcode RAM, the output of the sequencer is augmented by the output of finite state
5668813 Dynamic synchronization code detection window September 16, 1997
A TDMA communication system having a selectable synchronization code receive window is described. To eliminate any false detections of a synchronization code, a selectable window is created during which the synchronization code is expected to appear. The size of the window is reduced
5666366 Inter-base synchronization technique for a TDMA communication system September 9, 1997
A synchronization method for synchronizing a plurality of base stations in a TDMA communication system is disclosed. The synchronization topology may be via dedicated hardwire, via any DSL from the PSTN, or via an ad-hoc RF synchronization technique. Slots containing data are arranged in
5606560 Between a base station and a portable device February 25, 1997
A method and apparatus increases spectrum efficiency in a wireless communication system having base stations which may be positioned to operate within range of one another. The method and apparatus eliminates the requirement for a base station to periodically transmit to maintain syn
5598419 Dynamic synchronization code detection window January 28, 1997
A method and structure for virtually eliminating any false detections of a synchronization code is described which creates a selectable window during which the synchronization code is expected to appear. A coincidental replication of the synchronization code outside the window does not
5485513 Circuit and method for automatic memory dialing January 16, 1996
A method provide delays during memory dialing by automatically inserting pause characters within the dialing sequence based upon the user's entry of the dialing sequence. The method establishes a time-out period (64) when storing dialing sequences, and adds a pause character (66) to the
5361302 Method for encryption sync compression in an encrypted radio telephone interconnect system November 1, 1994
A method for transparently coupling an encrypted two-way RF communication unit (100) with an encrypted landline communication unit (104). An RF message comprised of a plurality of data frames (401,402, 403) is transmitted from the RF communication unit (100), wherein a plurality of t
5243653 Method and apparatus for maintaining continuous synchronous encryption and decryption in a wirel September 7, 1993
In a wireless communication system comprising a plurality of fixed communication units (FCUs) (102) and portable communication units (PCUs) (120), each comprising an encryption synchronization counter (ESC) (314, 414), the PCU and FCU having a digital transmission format (201), a method
5212715 Digital communication signalling system May 18, 1993
In frequency-hopping spread-spectrum systems, it is necessary to maintain frequency and bit synchronization (sync) between the transmitter and receiver in order to maintain quality data recovery at the receiver. A protocol is described which includes a synthesizer lock field (109) to
5144668 Signal overlap detection in a communication system September 1, 1992
In frequency-hopping spread-spectrum systems, it is necessary to maintain frequency and bit synchronization (sync) between the transmitter and receiver in order to maintain quality data recovery at the receiver. Two transmissions in adjacent hop-time intervals may overlap because of
5086467 Dummy traffic generation February 4, 1992
In a secure communication system, a method for generating dummy traffic to forestall cryptanalytic attack by traffic analysis. Both the dummy traffic signal and certain characteristics of the dummy transmissions, such as duration and inter-transmission delay, are derived from the same so
4920567 Secure telephone terminal April 24, 1990
A secure Telephone Terminal apparatus and method is disclosed which permits clear analog or coded digital message signals to operate on a non-secure telephone network having conventional equipment. This Telephone Terminal is utilized as a Remote Interface at the location of each predeter
4815128 Gateway system and method for interconnecting telephone calls with a digital voice protected rad March 21, 1989
A Gateway apparatus and method is disclosed which permits secure, end-to-end communications to exchange automatically between predetermined authorized subscribers operating on a radio network and a telephone network. The Gateway determines whether clear or coded message signals are t










 
 
  Recently Added Patents
Powerline communication receiver
Sending notification of event
Automatic baroreflex modulation responsive to adverse event
Cardiac function management integrating cardiac contractility modulation
Family of pain producing substances and methods to produce novel analgesic drugs
Method and system for detecting center pivot collision
MOS resistor apparatus and methods
  Randomly Featured Patents
Semiconductor integrated circuit having data input/output circuit and method for inputting data using the same
Exposure apparatus
Transparent hypervisor pinning of critical memory areas in a shared memory partition data processing system
Latch release mechanism for molded case electric circuit breakers
Signalling device for weight lifters
High volume dough piece production method
Laser beam imperfection detection for plastic film rolls
Seat slide device for vehicle
Educational game device
Low profile griddle