公开(公告)号：DE19523180C2

公开(公告)日：2000-06-08

申请号：DE19523180

申请日：1995-06-26

Applicant: MOTOROLA INC

Inventor： WEIGAND DAVID L ,  SMALLWOOD RALPH D ,  TAYLOR MATTHEW W

IPC: H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04Q7/26

Abstract: A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching between the phone line (16), the portable units (18), a full duplex speaker phone (24), and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12) provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

公开(公告)号：FR2725086B1

公开(公告)日：1999-12-31

申请号：FR9510895

申请日：1995-09-18

Applicant: MOTOROLA INC

Inventor： MALEK CHARLES J ,  WEIGAND DAVID L

IPC: H04B1/713 ,  H04B7/26 ,  H04J3/06 ,  H04L7/00 ,  H04W88/08 ,  H04B1/69

Abstract: 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 synchronization with an associated handset (504). The handset effectively assumes the role of a base station when making a call (508). The handset will synchronize with other handset traffic or another base station which is within range (506). The handset will then page the base station (510). Eliminating the requirement that the base station repeatedly transmit a signal to maintain sync with a handset significantly increases the available spectrum allocation for providing communication. Reversing the role of a handset also enables handset-to-handset communication independent of the base station (808).

公开(公告)号：FI962055A

公开(公告)日：1996-11-17

申请号：FI962055

申请日：1996-05-15

Applicant: MOTOROLA INC

Inventor： LATELLA RICKY ,  WEIGAND DAVID L ,  GOERGEN GLENN C

IPC: H02J9/06 ,  G06F1/16 ,  G06F1/26 ,  G11B31/00 ,  G11B33/12 ,  H01M2/10 ,  H01M10/46 ,  H01R13/70 ,  H02J7/00 ,  H04M1/02 ,  H02J

Abstract: A battery continuation apparatus (104) contains an electrochemical cell (1039) and a bypass mechanism (1100). When attached to an electronic device (100), the bypass mechanism (1100) selectively connects the one electrochemical cell (1039) to power the electronic device (100) or selectively bypasses the electrochemical cell (1039) when a battery pack (102) or an additional battery continuation apparatus (2001) having a second source of power is coupled to the battery continuation apparatus (104).

公开(公告)号：CA2075302C

公开(公告)日：1996-08-27

申请号：CA2075302

申请日：1992-01-30

Applicant: MOTOROLA INC

Inventor： WEIGAND DAVID L

IPC: H04L7/04 ,  H04L27/233 ,  H04B1/16

Abstract: The GMSK real-time demodulation apparatus and process of the present invention demodulates a coherent quadrature phase modulated GMSK signal in real-time using a noncoherent receiver. The GMSK signal is initially non-coher-ently detected, thus producing a channel symbol signal. This signal is then differentially decoded to recover the encoded digital information.

公开(公告)号：FI962055A0

公开(公告)日：1996-05-15

申请号：FI962055

申请日：1996-05-15

Applicant: MOTOROLA INC

Inventor： LATELLA RICKY ,  WEIGAND DAVID L ,  GOERGEN GLENN C

IPC: H02J9/06 ,  G06F1/16 ,  G06F1/26 ,  G11B31/00 ,  G11B33/12 ,  H01M2/10 ,  H01M10/46 ,  H01R13/70 ,  H02J7/00 ,  H04M1/02 ,  H02J

Abstract: A battery continuation apparatus (104) contains an electrochemical cell (1039) and a bypass mechanism (1100). When attached to an electronic device (100), the bypass mechanism (1100) selectively connects the one electrochemical cell (1039) to power the electronic device (100) or selectively bypasses the electrochemical cell (1039) when a battery pack (102) or an additional battery continuation apparatus (2001) having a second source of power is coupled to the battery continuation apparatus (104).

公开(公告)号：SE9502366L

公开(公告)日：1996-01-02

申请号：SE9502366

申请日：1995-06-30

Applicant: MOTOROLA INC

Inventor： WEIGAND DAVID L ,  SMALLWOOD RALP D ,  TAYLOR MATTHEW W

IPC: H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04Q7/24

Abstract: A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching between the phone line (16), the portable units (18), a full duplex speaker phone (24), and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12) provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

公开(公告)号：SE9503285D0

公开(公告)日：1995-09-22

申请号：SE9503285

申请日：1995-09-22

Applicant: MOTOROLA INC

Inventor： MALEK CHARLES J ,  WEIGAND DAVID L

IPC: H04B1/713 ,  H04B7/26 ,  H04J3/06 ,  H04L7/00 ,  H04W88/08 ,  H04Q

Abstract: 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 synchronization with an associated handset (504). The handset effectively assumes the role of a base station when making a call (508). The handset will synchronize with other handset traffic or another base station which is within range (506). The handset will then page the base station (510). Eliminating the requirement that the base station repeatedly transmit a signal to maintain sync with a handset significantly increases the available spectrum allocation for providing communication. Reversing the role of a handset also enables handset-to-handset communication independent of the base station (808).

公开(公告)号：CA2075302A1

公开(公告)日：1992-08-26

申请号：CA2075302

申请日：1992-01-30

Applicant: MOTOROLA INC

Inventor： WEIGAND DAVID L

IPC: H04L7/04 ,  H04L27/233

Abstract: The GMSK real-time demodulation apparatus and process of the present invention demodulates a coherent quadrature phase modulated GMSK signal in real-time using a non-coherent receiver. The GMSK signal is initially non-coherent detected, thus producing a channel symbol signal. This signal is then differentially decoded to recover the encoded digital information.

公开(公告)号：FR2722048B1

公开(公告)日：1999-07-16

申请号：FR9507220

申请日：1995-06-16

Applicant: MOTOROLA INC

Inventor： WEIGAND DAVID L ,  SMALLWOOD RALPH D ,  TAYLOR MATTHEW W

IPC: H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04M11/00

Abstract: A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching between the phone line (16), the portable units (18), a full duplex speaker phone (24), and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12) provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

公开(公告)号：BR9602266A

公开(公告)日：1998-10-27

申请号：BR9602266

申请日：1996-05-15

Applicant: MOTOROLA INC

Inventor： GOERGEN GLENN C ,  WEIGAND DAVID L ,  LATELLA RICKY

IPC: H02J9/06 ,  G06F1/16 ,  G06F1/26 ,  G11B31/00 ,  G11B33/12 ,  H01M2/10 ,  H01M10/46 ,  H01R13/70 ,  H02J7/00 ,  H04M1/02 ,  H01M10/48

Abstract: A battery continuation apparatus (104) contains an electrochemical cell (1039) and a bypass mechanism (1100). When attached to an electronic device (100), the bypass mechanism (1100) selectively connects the one electrochemical cell (1039) to power the electronic device (100) or selectively bypasses the electrochemical cell (1039) when a battery pack (102) or an additional battery continuation apparatus (2001) having a second source of power is coupled to the battery continuation apparatus (104).