Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 1 - Details of transmission systems, not covered by a single one of groups; Details of transmission systems not characterised by the medium used for transmission
Patents for H04B 1 - Details of transmission systems, not covered by a single one of groups; Details of transmission systems not characterised by the medium used for transmission (188,568)
11/1998
11/18/1998CN1199228A Panel detaching apparatus for car-mounted audio system
11/18/1998CN1199202A Encoding method and apparatus and recording medium
11/18/1998CN1040825C Selective pager with displaying function
11/17/1998US5839110 Transmitting and receiving apparatus
11/17/1998US5839062 Mixing, modulation and demodulation via electromechanical resonators
11/17/1998US5839061 Receiver quality measurement system for use in digital cordless telephones and like apparatus
11/17/1998US5839060 Logarithmic level detector and a radio receiver
11/17/1998US5839056 Method and apparatus for controlling transmission power of a radio transmitter
11/17/1998US5839055 Narrow band radio transmitting and receiving apparatus and method
11/17/1998US5839050 System for determining radio listenership
11/17/1998US5838913 Control message transmission in telecommunications systems
11/17/1998US5838803 Muting circuit
11/17/1998US5838799 Digital sound broadcasting using a dedicated control channel
11/17/1998US5838789 S-shaped flip cellular telephone
11/17/1998US5838741 Communication device and method for reducing effects of noise introduction by synchronizing data transfer to a received signal
11/17/1998US5838740 Crosspole interference canceling receiver for signals with unrelated baud rates
11/17/1998US5838733 Method and apparatus for mitigating signal distortion in a communication system
11/17/1998US5838730 Radio transmitter/receiver for wireless local area network
11/17/1998US5838723 For transmitting data over a computer network to other network circuits
11/17/1998US5838721 Spread spectrum communication equipment
11/17/1998US5838720 Transceiver control with sleep mode operation
11/17/1998US5838719 Noise shaping technique for spread spectrum communications
11/17/1998US5838718 Method and apparatus for transmitting data signals
11/17/1998US5838717 Spectrum spread communication system
11/17/1998US5838675 Channelized receiver-front-end protection circuit which demultiplexes broadband signals into a plurality of different microwave signals in respective contiguous frequency channels, phase adjusts and multiplexes channels
11/17/1998US5838254 Transmission-reception time correction system
11/17/1998US5838184 Equivalent variable resistor circuits
11/17/1998US5838139 Portable device battery technique
11/17/1998CA2178846C High speed bus transceiver with fault tolerant design for hot pluggable applications
11/17/1998CA2133236C Method and apparatus for channel equalization
11/17/1998CA2108957C Wide dynamic range detection circuit
11/17/1998CA2070493C Call selective receiver built in with vibrator
11/15/1998CA2237460A1 Adaptive multiple sub-band common-mode rfi suppression
11/15/1998CA2205686A1 Adaptive multiple sub-band common-mode rfi suppression
11/12/1998WO1998051108A2 Hand-held cellular telephone with power management features
11/12/1998WO1998051017A1 Arrangements and method relating to handling of digital signals
11/12/1998WO1998051016A1 A method and apparatus for interfacing an electronic device with an external accessory
11/12/1998WO1998051015A1 Multi-channel base station/terminal design covering complete system frequency range
11/12/1998WO1998051007A1 Method and apparatus for efficient signal power amplification
11/12/1998WO1998036395A3 Device and method for producing coded high-frequency signals
11/12/1998WO1998030919A3 Enhancing sensitivity in compressive receivers
11/12/1998WO1998028931A3 Methods and systems for reduced power operation of cellular mobile terminals
11/12/1998DE19719512A1 Mobile telephone holder for car
11/12/1998CA2237439A1 Multiple mode capable radio receiver device
11/11/1998EP0877510A2 Neighbouring cell measurement in a TDMA cellular radio network
11/11/1998EP0877493A2 Synchronization in a multipath spread spectrum communication receiver
11/11/1998EP0877492A2 Antenna for portable radio telephone
11/11/1998EP0877491A1 Radio transmission system with identical SAW filters used in transmitter and receiver
11/11/1998EP0877476A1 Down conversion mixer
11/11/1998EP0877441A1 Portable radio telephone with pivotable antenna
11/11/1998EP0876717A1 Time-duplex wireless telephone with improved hearing-aid compatibility
11/11/1998EP0876711A1 Antenna system for dual mode satellite/cellular portable phone
11/11/1998EP0876688A1 ANTENNA FOR FREQUENCIES IN EXCESS OF 200 MHz
11/11/1998EP0876179A1 Adaptive, performance-optimizing communication system for communicating with an implanted medical device
11/11/1998EP0692167B1 Apparatus and method for transmitting information between dual redundant components utilizing four signal paths
11/11/1998CN2297024Y Telecontrol signal dual channel automatic switching apparatus
11/11/1998CN1198856A Bypass device in an amplifier unit
11/11/1998CN1198851A Accumulator device for an electrical and/or electronic apparatus and telecommunication terminal comprising such a device
11/11/1998CN1198626A CDMA receiver
11/11/1998CN1198625A Receiving equipment, receiving method and teminal unit used with radio system
11/11/1998CN1198623A Transmitting diversity circuit for time division multiple access radio unit
11/11/1998CN1198618A Speech processing circuit for digital communication network
11/11/1998CN1198617A High frequency instrument
11/11/1998CN1198616A Common-frequency multi-signal direction-finding and intercept receiving method and device thereof
11/11/1998CN1198615A Radio equipment
11/11/1998CN1198614A Remote-control multi-transmitting receiving real-time processing system
11/11/1998CN1198613A Digital data coding/decoding method and equipment thereof
11/11/1998CN1198601A Inner and outer antenna structure for portable remote terminal equipment
11/10/1998US5835889 Method and apparatus for detecting hangover periods in a TDMA wireless communication system using discontinuous transmission
11/10/1998US5835853 Two band receiver
11/10/1998US5835852 Integated electronic communication device and clip
11/10/1998US5835850 Self-testing transceiver
11/10/1998US5835608 Signal separating system
11/10/1998US5835569 Communication terminal equipment for receiving and sending message information and the control method thereof
11/10/1998US5835529 Digital communication apparatus
11/10/1998US5835528 Method for fast determination of puesdo-noise code generator state
11/10/1998US5835527 Spread spectrum adaptive power control system and method
11/10/1998US5835489 CDMA communication system
11/10/1998US5835488 Pseudo random noise sequence code generator and CDMA radio communication terminal
11/10/1998US5835483 Information transmission system utilizing at least two channels in the redundancy mode
11/10/1998US5835068 Microwave transceiver/antenna system with adjustable mounting and alignment mechanism
11/10/1998US5835064 Antenna adapter assembly for portable cellular telephone
11/10/1998US5835063 Monopole wideband antenna in uniplanar printed circuit technology, and transmission and/or recreption device incorporating such an antenna
11/10/1998US5835030 Signal encoding method and apparatus using selected predetermined code tables
11/10/1998US5835010 Automatic answering system using transponder
11/10/1998US5834978 From overcurrent in a mobile wireless phone
11/10/1998US5834972 Method and system in a hybrid matrix amplifier for configuring a digital transformer
11/10/1998US5834919 Structure of cellular telephone battery charger
11/10/1998US5834753 Laser scanner module having integral interface with hand-held data capture terminal proximity and label sensing, and enhanced sensitivity and power efficiency
11/10/1998US5833100 Cellular phone holder
11/10/1998CA2130493C Portable radio communication device housing having a battery storage unit
11/10/1998CA2114142C Modem
11/05/1998WO1998049859A1 A method of and apparatus for tracking propagation delay between a base station and a subscriber unit
11/05/1998WO1998049816A1 Communication terminal apparatus and method for selecting options using a dial shuttle
11/05/1998WO1998049786A2 Adaptive communication system and method using unequal weighting of interference and noise
11/05/1998WO1998049785A1 Method of and apparatus for controlling transmission power in a communication system
11/05/1998WO1998049783A1 Method and apparatus for conserving energy in a radio communication system
11/05/1998WO1998049781A1 Repeater assisted channel hopping system and method therefor
11/05/1998WO1998049780A2 Frequency hopping communication system
11/05/1998WO1998049779A1 Configurable single-chip transceiver integrated circuit architecture
1 ... 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 ... 1886