公开(公告)号：ZA815970B

公开(公告)日：1982-10-27

申请号：ZA815970

申请日：1981-08-27

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE ,  JACOBSON JAMES EVERETTE JR

IPC: G05F1/56 ,  G05F3/20 ,  H02M3/155 ,  H02M3/156 ,  H02M3/335

Abstract: A DC/DC converter operates at peak efficiency in either of two output current level states in response to the power demands of an associated electronic device, thereby reducing wasted current to a minimum. The converter is designed to operate from a one-cell battery, and is particularly suited to an integrated circuit implementation.

公开(公告)号：BR8108822A

公开(公告)日：1982-08-24

申请号：BR8108822

申请日：1981-08-21

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE ,  JACOBSON JAMES EVERETTE JR

IPC: G06F1/00 ,  G06F1/24 ,  G06F1/32 ,  G06F9/00 ,  G06F11/00 ,  G06F11/14 ,  G06F11/30 ,  H04Q7/14

Abstract: A dual deadman timer circuit functions to reset a dual mode microprocessor in the event of loss of program control. The microprocessor has high and low power requirements corresponding to its two operating modes, and the deadman timer circuit also adjusts the output power level of an associated two-level power supply to ensure that sufficient power is available for the full operation of the microprocessor during reset. The deadman timer functions during both microprocessor modes and includes two level-sensitive input sections to ensure that the microprocessor is reset under an error condition.

公开(公告)号：IT8149400D0

公开(公告)日：1981-09-30

申请号：IT4940081

申请日：1981-09-30

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE ,  RAGHUNATHAN KUPPUSWAMY

IPC: G06F9/22 ,  G08B3/10 ,  H04B1/16 ,  H04B5/04 ,  H04L7/033 ,  H04L7/04 ,  H04Q1/39 ,  H04W8/24 ,  H04W88/02 ,  G08B

Abstract: An battery powered, adaptive signal decoder is disclosed which is capable of processing detected encoded signals in accordance with a plurality of decoding schemes. The decoder has an equivalent microcomputer implementation. Energy conservation means operating independently of the detected signals acts to conserve the energy of the battery.

公开(公告)号：CA2793746C

公开(公告)日：2016-09-20

申请号：CA2793746

申请日：2001-10-05

Applicant: CERTICOM CORP ,  MOTOROLA INC

Inventor： VANSTONE SCOTT ALEXANDER ,  DAVIS WALTER LEE ,  AYERST DOUGLAS I

IPC: H04L9/32

Abstract: A wireless communication system includes a pager or similar device that communicates to a home terminal. The home terminal confirms the identity of the pager and attaches a certificate to the message for ongoing transmission. Where the recip-ient is also a pager, an associated home terminal verifies the transmission and forwards it in a trusted manner without the certificate to the recipient.

公开(公告)号：ES2268807T3

公开(公告)日：2007-03-16

申请号：ES98960721

申请日：1998-12-04

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE ,  LAVELL JEFF ,  LEONARDO VICTORIA A

IPC: G08B1/00 ,  G06Q20/04 ,  G06Q20/10 ,  G06Q20/32 ,  G06Q20/34 ,  G06Q20/36 ,  G06Q20/38 ,  G06Q40/00 ,  G07F7/10 ,  H04L9/08 ,  H04L12/28 ,  H04W88/02

Abstract: Una unidad portátil de mensajería financiera segura (906) que comprende: un receptor (804) para recibir una señal de radiofrecuencia que comprende un mensaje de transacción financiera segura; un decodificador de llamada selectiva (1004) acoplado al receptor (804), decodificador de llamada selectiva (1004) que comprende: una memoria (1010) que incluye una dirección de llamada selectiva única individual correspondiente con un tipo de transacción financiera predeterminado, un correlacionador de direcciones acoplado a la memoria (1010), correlacionador de direcciones que opera para determinar coincidencias sustanciales entra la dirección de llamada selectiva única individual y la dirección de la llamada selectiva recibida contenida en la señal de radiofrecuencia y correspondiente con el tipo de transacción financiera predeterminada, y un procesador principal (1006) acoplado a un procesador de transacciones financieras (1014); el procesador de transacciones financieras (1014) acoplado al decodificador de llamada selectiva (1004), procesador de transacciones financieras (1014) que permite a la unidad portátil de mensajería financiera segura (906) para efectuar una transacción financiera segura, basada al menos en parte, en la información contenida en el mensaje de transacción financiera segura, en donde el procesador de transacción financiera (1014) descifra un mensaje de transacción financiera segura acoplado desde el decodificador de llamada selectiva (1004) cuando el correlacionador de direcciones determina una coincidencia sustancial entre la dirección de llamada selectiva única individual y la dirección de llamada selectiva recibida, en donde el procesador de transacciones financieras.

公开(公告)号：AT231665T

公开(公告)日：2003-02-15

申请号：AT94901673

申请日：1993-11-23

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B5/00 ,  H04W84/02 ,  H04B7/26

Abstract: A cooperative paging system (10) and radio telephone system (15) combine to provide conventional delivery of short paging messages to a combination pager/radio telephone (40) via a first communication path, while a radio telephone link operating at a higher data rate is used to deliver large data messages to the pager/radio telephone (40). The radio telephone link is formed by a transceiver section (205) of the pager/radio telephone (40) coupling to a radio telephone base station (50,52) and calling up a paging terminal (32) of the paging system (10). The paging terminal (32) retrieves the large data messages from a temporary message memory (42) to deliver to the pager/radio telephone (40).

公开(公告)号：ES2165394T3

公开(公告)日：2002-03-16

申请号：ES94921914

申请日：1994-05-31

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B1/10 ,  H04B15/04 ,  H04Q7/14 ,  H04B1/16

Abstract: A radio receiver (40) for receiving an RF signal comprises receiving circuitry (42) for receiving and demodulating the RF signal and a microcomputer (44) coupled to the receiving circuitry (42) for enabling and disabling the receiving circuitry (42) at predetermined times. The radio receiver (40) further comprises an expansion chip (68) coupled to and controlled by the microcomputer (44) for communicating therewith to further process the RF signal. Communication between the microcomputer (44) and the expansion chip (68) occurs at a first speed when the receiving circuitry (42) is enabled and at a second speed faster than the first speed when the receiving circuitry (42) is disabled.

公开(公告)号：BR9814356A

公开(公告)日：2002-03-05

申请号：BR9814356

申请日：1998-12-04

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE ,  LAVELL JEFF ,  LEONARDO VICTORIA A ,  HEROLD BARRY W

IPC: G07F19/00 ,  G06Q20/10 ,  G06Q20/32 ,  G06Q40/00 ,  H04B1/38 ,  H04L9/00 ,  H04B1/04 ,  H04K1/00

Abstract: A portable 2-way secure financial messaging unit (906) includes a receiver (804), a selective call decoder (1004), a financial transaction processor (1014), a main processor (1006), and a transmitter (1034). A received secure financial transaction message is decoded by the selective call decoder (1004) and either passed directly to a financial transaction processor (1014) in the secure financial messaging unit or to a smart card to prevent unauthorized access to information contained in the secure financial transaction message. The portable 2-way secure financial messaging unit (906) may originate as well as receive financial transactions.

公开(公告)号：BR9814336A

公开(公告)日：2001-10-30

申请号：BR9814336

申请日：1998-12-04

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE ,  LAVELL JEFF ,  LEONARDO VICTORIA A

IPC: G06Q20/04 ,  G06Q20/10 ,  G06Q20/32 ,  G06Q20/34 ,  G06Q20/36 ,  G06Q20/38 ,  G06Q40/00 ,  G07F7/10 ,  H04L9/08 ,  H04L12/28 ,  H04W88/02 ,  H04K1/00 ,  G06F17/60 ,  G06F7/00

Abstract: A portable secure financial messaging unit (906) includes a receiver (804) and a selective call decoder (1004). The selective call decoder (1004) has a memory (1010) that includes a single unique selective call address corresponding with a predetermined financial transaction type. An address correlator (830) operates to determine substantial coincidence between the single unique selective call address and a received selective call address corresponding with the predetermined financial transaction type. In response to a coincidence, a main processor (1006) and a financial transaction processor (1014) process-received information to effect a financial transaction corresponding with the predetermined financial transaction type.

公开(公告)号：ID28954A

公开(公告)日：2001-07-19

申请号：ID20001191

申请日：1998-12-04

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE ,  VELL JEFF LA ,  LEONARDO VICTORIA A ,  HEROLD BARRY W

IPC: G06Q20/10 ,  G06Q20/32 ,  G06Q40/00 ,  G07F19/00 ,  H04B1/38 ,  H04L9/00 ,  H04B1/04 ,  H04K1/00

Abstract: A portable 2-way secure financial messaging unit (906) includes a receiver (804), a selective call decoder (1004), a financial transaction processor (1014), a main processor (1006), and a transmitter (1034). A received secure financial transaction message is decoded by the selective call decoder (1004) and either passed directly to a financial transaction processor (1014) in the secure financial messaging unit or to a smart card to prevent unauthorized access to information contained in the secure financial transaction message. The portable 2-way secure financial messaging unit (906) may originate as well as receive financial transactions.