1
Robert F D Avello, Francis P Tobolski Jr, Joseph L Kowalski: Radiotelephone credit card call approval synchronization. Motorola, Raymond A Jenski, Rolland R Hackbart, August 22, 1989: US04860341 (126 worldwide citation)

A mobile radiotelephone call synchronization method and apparatus for a radiotelephone system utilizing a credit card for payment of calls is disclosed. Call access is denied a mobile unit until the user runs his credit card through a card reader to input credit card information. After checking list ...


2
Joseph L Kowalski: Multi-user serial data bus. Motorola, Rolland R Hackbart, March 31, 1987: US04654655 (78 worldwide citation)

A multiple device serial data bus and signalling scheme is described. The serial data bus allows for inter-peripheral communication at a data rate established by a bus control unit. Clocking information is extracted from data communicated from the bus controller to the peripheral devices. Additional ...


3
Joseph L Kowalski: Cellular telephone controller with synthesized voice feedback for directory number confirmation and call status. Motorola, Rolland R Hackbart, March 10, 1992: US05095503 (59 worldwide citation)

A unique cellular telephone controller (104 and 106) provides synthesized voice feedback for directory number confirmation, call status, and cellular telephone feature, option and service selection. Cellular telephone (100) includes a cellular telephone transceiver (102), cellular telephone handset ...


4
Joseph L Kowalski, Daniel S Rokusek: Microphone-controller with multifunction, single conductor. Motorola, Kenneth W Bolvin, May 21, 1991: US05018188 (6 worldwide citation)

The single power conductor carries audio and a serial data bus. The microphone's amplifier (102) is connected to the conductor (108). The incoming audio signal rides on the DC supply voltage from the radiotelephone. The supply voltage, through a voltage regulator (103), supplies power to the amplifi ...