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| Number | Title | Issue Date |
| 6246767 | Source authentication of download information in a conditional access system A cable television system provides conditional access to services. The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of set top units for receiving the instances and selectively decry... | 06/12/2001 |
| 6242982 | Amplifier with self setting automatic gain control circuit An amplifier (125) having automatic gain control (AGC) includes a gain stage (220), having a variable amplifier (215), for amplifying a signal received by the amplifier (125). The amplifier (125) also includes an AGC circuit (228) that adjusts amplificati... | 06/05/2001 |
| 6239897 | Chirp-controlled optical modulator and method of controlling chirp in the modulation of an optical signal An optical signal is modulated by passing it through an optical signal path in an optical modulator. Different electric fields are applied across a first pair of parallel phase modulation arms so as to produce different signal phase modulations in respect... | 05/29/2001 |
| 6240103 | Method and apparatus for detecting and preventing bandwidth overflow in a statistical multiplexer Techniques for determining an output rate for a bit stream, the output rate being determined by applying information read from the bit stream to available bandwidths. The techniques are employed to construct a statistical multiplexer 80 that multiplexes v... | 05/29/2001 |
| 5849426 | Hybrid energy storage system A hybrid energy storage system 10 including a first energy storage device 12, such as a secondary or rechargeable battery, and a second energy storage device 14, such as an electrochemical capacitor. The electrochemical capacitor provides intermittent ene... | 12/15/1998 |
| 5705855 | Integrated circuit for directly attaching to a glass substrate and method for manufacturing the same An integrated circuit (230) for attaching to a glass substrate (225) includes an integrated circuit die (350) having circuitry formed thereon. The integrated circuit (230) has cavities (380) formed in a first surface, and metal layers (370) formed adjacen... | 01/06/1998 |
| 5654734 | Method and apparatus for receiving and processing compressed image data for presentation by an active addressed display A communication system (500) for transmitting and receiving radio frequency (RF) signals includes a base station (505) for transmitting an RF signal including at least compressed data and a plurality of correction factors, wherein the compressed data incl... | 08/05/1997 |
| 5646652 | Method and apparatus for reducing memory requirements in a reduced line active addressing display system A data communication receiver (605) receives and stores a set of image data and displays images associated therewith on a display (600') having rows divided into first and second segments (705, 710). The data communication receiver (605) comprises a datab... | 07/08/1997 |
| 5644743 | Hybrid analog-digital phase error detector A hybrid analog-digital phase error detector (107) is utilized for detecting a phase error between first and second clock signals (132, 104). Digital and analog phase error detectors (108, 116) are connected to the first and second clock signals (132, 104... | 07/01/1997 |
| 5630152 | Communication protocol between master and slave device with register information sharing A method for full duplex communication between master and slave devices (403, 422) coupled by a serial peripheral interface (420) includes the steps of the slave device (422) updating a status register (421) based upon an event, after which the slave devi... | 05/13/1997 |
| 5603090 | Automatic channel identification A method for tracking, in a roaming receiver, RF channels in a multi-area system where each area has a unique RF channel and each unique RF channel has a unique address for each user. A plurality of telephone area codes are stored into a memory of the rec... | 02/11/1997 |
| 5602877 | Method and apparatus for information recovery in a radio communication device A radio communication device (100) for recovering information from a received signal includes a demodulator (110) for demodulating the received signal into in-phase (I) and quadrature (Q) components and a multiplier (115) for multiplying the I and Q compo... | 02/11/1997 |
| 5581366 | Method and apparatus for originating a facsimile message in a selective call receiver A selective call receiver (12) having a pen input capable display screen (50) for inputting a message by pen stylus (60) to be facsimile transmitted. A auxiliary cradle unit (13) is provided which mates and electrically connects with the selective call re... | 12/03/1996 |
| 5579535 | Personal communication system providing supplemental information mode A personal communication system (10) comprises transceiver stations (12, 14, 16, 18) providing communication capability between one or more portable radiotelephones (20, 22, 24) and a telephone network (30). One or more of the transceiver stations (12, 14... | 11/26/1996 |
| 5543781 | Method and apparatus for user selectable quick data access in a selective call receiver A selective call receiver (30) receives personal messages and information services provided database messages. A memory (44) stores the personal messages in a first portion (46) and the database messages as a plurality of screens in a second portion (48).... | 08/06/1996 |
| 5535428 | Method and apparatus for selectively retaining messages received by a radio receiver based upon message content A radio receiver (110) for processing a message including information about a sports event includes a message processing element (555) for locating, within the message, a final flag (225) indicative of a status of the sports event and a controller (515) c... | 07/09/1996 |
| 5521589 | Method and apparatus for receiving and selectively announcing time-activated messages A method, in a data communication receiver, for selectively alerting a user at specified times, wherein the data communication receiver includes an interface for transmitting data to a host computer and an annunciator for generating a sensible alert, comp... | 05/28/1996 |
| 5521545 | Collector-injection mixer with radio frequency signal applied to collectors of lower transistor pair A collector-injector mixer circuit (100) has a first differential pair of transistors having first and second transistors (102, 104) whose emitters are connected to a common first emitter terminal (110), and a second differential pair of transistors havin... | 05/28/1996 |
| 5512916 | Method and apparatus for processing and subsequently displaying transmitted image data on an active-addressed display device A method, in a data communication receiver having a display, for processing received information comprises the steps of receiving (1100) an address, wherein the address is associated with a plurality of image data values, and comparing (1105) the address ... | 04/30/1996 |
| 5508695 | Method and apparatus for identifying messages associated with a sports team in a communication system A communication system (100) for identifying messages concerning particular sports teams includes a terminal (105) for transmitting a message about a sports event as a radio frequency signal. A radio receiver (110) receives and decodes the radio frequency... | 04/16/1996 |
| 5507040 | Method and apparatus for battery saving in a radio communication device A method for battery saving in a battery powered radio communication device having a receiver for receiving a radio frequency (RF) signal comprises the step of enabling (100) the receiver for reception of the RF signal. The method further comprises the st... | 04/09/1996 |
| 5504476 | Method and apparatus for generating alerts based upon content of messages received by a radio receiver A communication system (100) for alerting a user based upon content of messages transmitted to the user includes a terminal (105) for generating and transmitting a message having first and second recipient identifications (IDs) and first and second alert ... | 04/02/1996 |
| 5499429 | Pager clip having aperture for fastening to an external article A clip (405) for attaching a portable electronic device (400) to an external article (805) comprises a first end (415) for coupling the clip (405) to the portable electronic device (400) and a second end (422) having an aperture (425) formed therein. The ... | 03/19/1996 |
| 5495260 | Printed circuit dipole antenna A paging receiver (100) comprises a printed circuit board (200) on which receiving circuitry (110) is mounted. The printed circuit board (200) comprises a plurality of conductive runners (205, 210, 305, 310) which form a dipole antenna (105) for providing... | 02/27/1996 |
| 5436028 | Method and apparatus for selectively applying solder paste to multiple types of printed circuit boards A single screen printer (200) holds at least two solder stencils (225). The screen printer (200) receives a printed circuit board (105) and determines a printed circuit board configuration. When the printed circuit board (105) is of a first configuration,... | 07/25/1995 |
| 5365221 | Computer card having low battery indicator A battery powered electronic device (105) for coupling to a host computer (205 ) comprises an interface (115) for transmitting data and an annunciator (340) for generating a sensible alert. The electronic device (105) further comprises interface monitorin... | 11/15/1994 |
| 5365227 | Method and apparatus for transmitting status information from a selective call receiver to an external electronic device A selective call receiver (100) for transmitting information to an external electronic device (208), such as a personal computer, includes a memory (125) for storing a predetermined status menu including at least one status category associated with intern... | 11/15/1994 |
| 5363090 | Method and apparatus for combining submessages of a message to form the complete message A method in a radio communication device (110) for receiving a lengthy message comprises the steps of receiving an RF signal (300) comprising header information (310) and submessages (305), wherein each submessage (305) is a portion of the lengthy message... | 11/08/1994 |
| 5347269 | Iconic duplicate message indicator In a selective call receiver for presenting a plurality of messages to a user, a method comprises the steps of receiving (205) a message, storing (208) the received message in a memory, and determining (210) whether the received message is substantially e... | 09/13/1994 |
| 5345235 | Scaled reference analog-to-digital conversion circuitry and method of operation Circuitry for converting analog signal voltages to digital values comprises an analog-to-digital (A/D) converter (170) for receiving an analog signal voltage and analog reference voltages and for generating in accordance therewith a first digital value. T... | 09/06/1994 |
| 5323418 | Code division multiple access (CDMA) inbound messaging system utilizing interference cancellation to recover inbound messages A base station for processing a received and stored spread spectrum signal determines the signal strengths of a first plurality of signals included in the stored spread spectrum signal. The strongest signal of the first plurality is subtracted from the st... | 06/21/1994 |
