公开(公告)号：JPH1117579A

公开(公告)日：1999-01-22

申请号：JP17225998

申请日：1998-06-04

Applicant: MOTOROLA INC

Inventor： JAHAGIRDAR KETAN R ,  ALBERTH WILLIAM P ,  HACKBART ROLLAND R ,  OSMANI RASHID M ,  CAHILL STEPHEN V

IPC: H04B1/38 ,  H04M1/00 ,  H04M1/02 ,  H04M1/22 ,  H04M1/57 ,  H04M1/663 ,  H04M1/725 ,  H04M1/73 ,  H04M11/00 ,  H04W52/02 ,  H04Q7/32 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To provide a communication terminal at a low cost with low power consumption having pluralities of display devices to give diversified display. SOLUTION: A portable communication terminal 102 includes a housing 105, a 1st display area 130 and a 2nd display area 132. The 1st display area 130 is directed to the outside from a side 122 of the housing 105 and the 2nd display area 132 is directed outward from a front part 120 of the housing 105. The housing 105 includes a housing section 114 movable to an open position and a closed position and the 2nd display area 132 is covered by the housing section 114 when the housing section 114 is at the 1st position or the 2nd position.

公开(公告)号：AU729895B2

公开(公告)日：2001-02-15

申请号：AU6601298

申请日：1998-05-18

Applicant: MOTOROLA INC

Inventor： JAHAGIRDAR KETAN R ,  ALBERTH WILLIAM P ,  HACKBART ROLLAND R ,  OSMANI RASHID M ,  CAHILL STEPHEN V

IPC: H04B1/38 ,  H04M1/00 ,  H04M1/02 ,  H04M1/22 ,  H04M1/57 ,  H04M1/663 ,  H04M1/725 ,  H04M1/73 ,  H04M11/00 ,  H04W52/02 ,  H04M1/03 ,  H04B1/03 ,  H04B1/08

Abstract: A portable communication device (102) includes a housing (105), a first display area (130), and a second display area (132). The first display area (130) is disposed in and outwardly directed from a front (120) of the housing (105), and the second display area (132) is disposed in and outwardly directed from a side (122) of the housing (105). The housing (105) may include a housing portion (114) movable to an open position and a closed position, where the second display area (132) is covered by the housing portion (114) when positioned in one of the first and the second positions.

公开(公告)号：CA2109410C

公开(公告)日：1997-12-09

申请号：CA2109410

申请日：1993-01-11

Applicant: MOTOROLA INC

Inventor： OSMANI RASHID M ,  CRISTIANO GARY M ,  SCHWENT DALE G

IPC: H03G3/10 ,  H03F3/04 ,  H03G3/00 ,  H03G3/20 ,  H03G3/30 ,  H03F3/34

Abstract: The dual mode power amplifier apparatus of the present invention is comprised of a number of power amplifiers (101-103) coupled to a voltage convertor (104) through their collector supply lines. A mod e select line (105) is connected to the voltage convertor (104) to select a digital or analog mode. The preferred embodiment of the present invention is used in a hybrid digital/analog radiotelephone in the digital mode, the voltage convertor (104) is turned off an d the voltage convertor (104) supply voltage is allowed through to the collectors of the power amplifiers (101-103). This permit s the power amplifiers (101-103) to operate with optimum linearity in a digital transmission environment. In an analog environme nt, the voltage convertor (104) is on and supplying a reduced voltage to the power amplifiers (101-103) allowing more effi cient operation in this mode.

公开(公告)号：GB2245789B

公开(公告)日：1995-03-01

申请号：GB9112389

申请日：1991-06-10

Applicant: MOTOROLA INC

Inventor： SCHWENT DALE G ,  OSMANI RASHID M ,  CRISTIANO GARY M

IPC: H03F3/72 ,  H04B1/04 ,  H03F3/24

Abstract: A dual mode power amplifier operable in etiher the linear mode or the saturation mode. The power amplifier, when comprising a portion of a radio transmitter, permits efficient amplification of either a frequency modulated or a composite modulated signal by operation of the amplifier in the saturation mode or the linear mode, respectively. A processor determines the modulation-type of the signal and generates a signal to cause operation of the amplifier in either the saturation mode or the linear mode.

公开(公告)号：GB2253314B

公开(公告)日：1994-04-20

申请号：GB9207830

申请日：1992-04-09

Applicant: MOTOROLA INC

Inventor： RICH RANDALL W ,  OSMANI RASHID M ,  WALCZAK THOMAS J ,  CAHILL STEPHEN V

IPC: H04B1/16 ,  H03G3/20 ,  H04L27/14 ,  H04L27/152 ,  H04L27/22

公开(公告)号：MX9100764A

公开(公告)日：1992-04-01

申请号：MX9100764

申请日：1991-08-21

Applicant: MOTOROLA INC

Inventor： RICH RANDALL W ,  OSMANI RASHID M ,  WALCZAK THOMAS J ,  CAHILL STEVEN V

IPC: H04B1/16 ,  H03G3/20 ,  H04L27/14 ,  H04L27/152 ,  H04L27/22 ,  G05F3/00

公开(公告)号：AU8395091A

公开(公告)日：1992-03-02

申请号：AU8395091

申请日：1991-07-11

Applicant: MOTOROLA INC

Inventor： RICH RANDALL W ,  OSMANI RASHID M ,  WALCZAK THOMAS J ,  CAHILL STEPHEN V

IPC: H03J7/06 ,  H04B1/40 ,  H04L27/227 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30 ,  H04Q7/36 ,  H04Q7/38 ,  H04L25/00 ,  H04L27/00

公开(公告)号：MX9100427A

公开(公告)日：1992-02-28

申请号：MX9100427

申请日：1991-07-30

Applicant: MOTOROLA INC

Inventor： RICH RANDALL W ,  OSMANI RASHID M ,  WALCZAK THOMAS J ,  CAHILL STEPHEN V

IPC: H03J7/06 ,  H04B1/40 ,  H04L27/227 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30 ,  H04Q7/36 ,  H04Q7/38 ,  H03L7/00

公开(公告)号：CA2066711A1

公开(公告)日：1992-02-25

申请号：CA2066711

申请日：1991-07-18

Applicant: MOTOROLA INC

Inventor： RICH RANDALL W ,  OSMANI RASHID M ,  WALCZAK THOMAS J ,  CAHILL STEPHEN V

IPC: H04B1/16 ,  H03G3/20 ,  H04L27/14 ,  H04L27/152 ,  H04L27/22 ,  H04Q9/00

公开(公告)号：FR2665991A1

公开(公告)日：1992-02-21

申请号：FR9109678

申请日：1991-07-30

Applicant: MOTOROLA INC

Inventor： RICH RANDALL W ,  OSMANI RASHID M ,  WALCZAK THOMAS J ,  CAHILL STEPHEN V

IPC: H03J7/06 ,  H04B1/40 ,  H04L27/227 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30 ,  H04Q7/36 ,  H04Q7/38 ,  H04B1/38 ,  H04B7/26