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1. 发明授权

US5600635A Caller personal station equipped with simultaneous call function and multicast communication function and corresponding receiver personal station, and cell station and corresponding receiver personal station 失效
标题翻译：呼叫者个人站配备同时通话功能和组播通信功能及对应的接收者个人站，以及小区和对应的接收者个人站
公开(公告)号：US5600635A
公开(公告)日：1997-02-04
申请号：US418422
申请日：1995-04-06
申请人： Takayuki Hamaki , Mitsuhiro Suzuki , Akinori Tatsumi , Mikio Shimazu , Jun Yamaguchi , Hiroaki Iwamoto , Masahide Morozumi , Takuya Kobayashi , Seiji Horii , Takako Hirose
发明人： Takayuki Hamaki , Mitsuhiro Suzuki , Akinori Tatsumi , Mikio Shimazu , Jun Yamaguchi , Hiroaki Iwamoto , Masahide Morozumi , Takuya Kobayashi , Seiji Horii , Takako Hirose
IPC分类号： H04L12/56 , H04W4/06 , H04W72/02 , H04W88/02 , H04L5/14 , H04J3/00
CPC分类号： H04W88/02 , H04W72/005 , H04W72/02
摘要： The caller personal station of the present invention includes the following units: a channel search unit for scanning the plurality of communication channels to search for an unoccupied channel and regarding the unoccupied channel as a multicast channel; and a simultaneous call unit for repeatedly transmitting a simultaneous call frame on the multicast channel for a first predetermined time period, the simultaneous call frame indicating a simultaneous call to the other personal stations; a multicast unit for transmitting multicast frames on the multicast channel when a second predetermined time period has passed, the multicast frames containing data to be multicast. On receiving the simultaneous call frame by sequentially sensing the plurality of communication channels, the other personal stations enter a receiving state of multicast frames on the multicast channel. The simultaneous call unit includes the following units: a simultaneous call frame generation unit for generating the simultaneous call frame; a transmission timer for counting the first predetermined time period and generating a time-out; and a simultaneous call frame transmission unit for repeatedly transmitting the simultaneous call frame on the multicast channel from a start of counting the predetermined time period until the time-out is generated.
摘要翻译：本发明的呼叫者个人电话包括以下单元：频道搜索单元，用于扫描多个通信信道以搜索未占用信道，并将未占用信道作为多播信道; 以及同时呼叫单元，用于在第一预定时间段内重复地在所述多播信道上发送同时呼叫帧，所述同时呼叫帧指示同时呼叫到其他个人站; 多播单元，用于在第二预定时间段过去时在所述多播信道上发送多播帧，所述多播帧包含要组播的数据。在接收到多个通信信道的同时呼叫帧时，其他个人站在组播信道上进入组播帧的接收状态。同时呼叫单元包括以下单元：用于产生同时呼叫帧的同时呼叫帧产生单元; 发送定时器，用于对第一预定时间段进行计数并产生超时; 以及一个同时呼叫帧发送单元，用于从开始计数预定时间周期直到产生超时，重复地在多播信道上发送同时呼叫帧。

2. 发明授权

US5757788A Digital radio communication system with efficient audio and non-audio data transmission 失效
标题翻译：数字无线电通信系统具有高效的音频和非音频数据传输
公开(公告)号：US5757788A
公开(公告)日：1998-05-26
申请号：US585181
申请日：1996-01-11
申请人： Akinori Tatsumi , Mitsuhiro Suzuki , Mikio Shimazu , Seiji Horii
发明人： Akinori Tatsumi , Mitsuhiro Suzuki , Mikio Shimazu , Seiji Horii
IPC分类号： H04J3/22 , H04M1/725 , H04M11/06 , H04W4/18 , H04W72/12 , H04W88/06 , H04J3/12
CPC分类号： H04W72/12 , H04J3/22 , H04M11/066 , H04M1/725 , H04N2007/145 , H04W4/18 , H04W88/06
摘要： In a radio communication system for performing digital radio communications by using time-division multiplexed time slots, a first personal station receives its user's speech through the microphone, converts it into audio data, and transmits them on time slots to a second personal station. On the other hand, the first personal station receives non-audio data from the data processor connected with the second personal station and stores. When the audio data amount inputted to the first personal station in a unit time period is lower than a threshold and the communications between the first personal station and the second personal station are put in a silence condition, the first personal station transmits non-audio data on times slots to the second personal station. When the communications return to a sound condition, audio data transmission is restored. Whether each time slot carries audio data or non-audio data is designated by an identifier which is written in a predetermined field of each time slot.
摘要翻译：在通过使用时分多路复用时隙进行数字无线电通信的无线电通信系统中，第一个人站通过麦克风接收其用户的语音，将其转换成音频数据，并将它们在时隙上发送到第二个人站。另一方面，第一个人站从与第二个人站连接的数据处理器接收非音频数据并存储。当在单位时间内输入到第一个人站的音频数据量低于阈值时，第一个人站和第二个人站之间的通信处于静音状态时，第一个人站发送非音频数据在第二个个人站的时间。当通信返回到声音状态时，恢复音频数据传输。每个时隙中是否承载音频数据或非音频数据是由每个时隙的预定字段中写入的标识符指定的。

3. 发明授权

US06526271B1 Method and apparatus for interference rejection 失效
标题翻译：用于干扰抑制的方法和装置
公开(公告)号：US06526271B1
公开(公告)日：2003-02-25
申请号：US09403026
申请日：1999-10-20
申请人： Mitsuru Uesugi , Kazuyuki Miya , Osamu Kato , Katsuhiko Hiramatsu , Akinori Tatsumi , Masatoshi Watanabe , Izumi Horikawa , Atsushi Iwaoka
发明人： Mitsuru Uesugi , Kazuyuki Miya , Osamu Kato , Katsuhiko Hiramatsu , Akinori Tatsumi , Masatoshi Watanabe , Izumi Horikawa , Atsushi Iwaoka
IPC分类号： H04B110
CPC分类号： H04B1/7107 , H04B1/71072 , H04W52/08
摘要： A small number of users who provide high interference in the other users, such as a user transmitting a high rate signal, are selected beforehand. First, a signal of the user is demodulated to generate a replica, and a difference between a received signal and the replica is calculated, thereby canceling the interference in signals of the other users, and further improving the system capacity.
摘要翻译：预先选择对其他用户提供高干扰的少量用户，例如发送高速率信号的用户。首先，对用户的信号进行解调以生成副本，并且计算接收信号与副本之间的差异，从而消除其他用户的信号的干扰，并进一步提高系统容量。

4. 发明授权

US06442405B1 Base station device and radio communication method 失效
标题翻译：基站装置和无线通信方式
公开(公告)号：US06442405B1
公开(公告)日：2002-08-27
申请号：US09555379
申请日：2000-05-30
申请人： Katsuhiko Hiramatsu , Kazuyuki Miya , Osamu Kato , Mitsuru Uesugi , Akinori Tatsumi , Masatoshi Watanabe , Izumi Horikawa , Atsushi Iwaoka
发明人： Katsuhiko Hiramatsu , Kazuyuki Miya , Osamu Kato , Mitsuru Uesugi , Akinori Tatsumi , Masatoshi Watanabe , Izumi Horikawa , Atsushi Iwaoka
IPC分类号： H04B138
CPC分类号： H04W88/08 , H04B7/0408 , H04B7/0491 , H04B7/086 , H04W16/24 , Y02D70/00 , Y02D70/444
摘要： Taking into account an optimal reception characteristic of a communication apparatus with variable directivity, the base station apparatus of the present invention has a communication apparatus with variable directivity positively accommodate a communication with a terminal in poor reception conditions, which makes it possible to reduce power of this terminal and reduce interference, thereby increasing the subscriber capacity in the system.
摘要翻译：考虑到具有可变方向性的通信装置的最佳接收特性，本发明的基站装置具有可变方向性的通信装置，可靠地适应与接收条件差的终端的通信，这使得可以降低功率该终端减少干扰，从而增加系统中的用户容量。

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