Abstract: In a system which transmits the same paging signals a plurality of times through the air by radio waves, paging signals serve to selectively page radio receivers. Base station facilities can be deployed at a comparatively low cost even when there are few customers per service area by variably setting the number of times that the paging signals are transmitted from the base stations.

Abstract: In a mobile communications system wherein the transmission form changes in the course of the signal, high quality transmission of change information relating to the transmission form is obtained. To achieve this, information giving advance notice of a change is transmitted prior to transmitting the change information relating to the transmission form. Even if a situation arises in which transmitted information has not been conveyed without error at a scheduled change time that was notified in advance, it is possible to resolve this situation by referring to the information giving advance notice of the change. This enables faulty paging and other defects resulting from erroneous changes of transmission form to be reduced.

Abstract: A system wherein time diversity reception is performed for each error-corrected or error-detected code word without distinguishing between the address signal and the message signal, the code words being the units which make up the address and message signals. A received signal comprising correctly decoded code words is obtained by selecting code words that are judged to have been correctly decoded in accordance with error detecting/correcting logic from among code words with the same content that have been received a plurality of times. When a code word has been correctly decoded, part of the selective radio paging receiver is inhibited from working during the time intervals when correctly received code words would be received, thereby decreasing battery consumption.

Abstract: A receiver which receives a signal transmitted while the symbol rate is changed over from among a plurality of different values, and which varies, in accordance with the symbol rate, the pass band width of the filter that removes unwanted signals from the detector output. By compensating for changes in delay produced by alteration of the pass band width of the filter, a receiver, according to this invention, recovers a clock that is synchronized with the symbol rate after changeover, without discontinuities occurring when the symbol rate is changed over.

Abstract: In a mobile radio communication system wherein mobile units are paged by repeatedly transmitting the same paging signal in n paging signal frames, the number of times a paging signal has been transmitted can be known at the receiving side without the need to transmit additional information, and a time diversity reception scheme can be employed at the receiving side, by forming the paging signal frames from n fixed-length subframes each of which contains a paging signal, and by positioning subframes that contain a new paging signal at one end of the paging signal frames, and, in the case of subframes containing paging signals that will be transmitted for the second or subsequent time, by arranging such subframes with a stagger in accordance with this number of times.

Abstract: In order for simulcast phase synchronization to be carried out autonomously by each base station, a highly accurate clock is provided in the central station and in each base station, and phase compensation is performed in accordance with time information from these clocks. As a result, simulcast synchronization that depends on the accuracy of clocks can be established, and the required synchronization accuracy can be obtained even when high transmission speeds are involved. The clocks can be corrected by a portable reference clock brought to each base station and central station site, and/or by a global positioning system installed at each base station and/or central station site.

Abstract: Battery saving is achieved by not receiving subframes which do not need to be received. Information regarding the time interval during which unnecessary subframes will be transmitted is inserted in a significant subframe which the base station transmits prior to this time interval, thereby notifying the radio paging receivers. The radio paging receivers detect these notification signals and stop receiving during the time interval when subframes which do not need to be received are transmitted.

Abstract: A time diversity communication system (150) comprises a messaging terminal (154), a queue (156) at the messaging terminal for queuing incoming messages, an encoder (158) for encoding a first fragment of a message and the remaining fragments of a message, a transmitter (160) for repeatedly transmitting the first fragment in a plurality of time slots to at least one selective call receiver (201) operating in a first mode, the number of time slots equaling a desired number of repeat transmissions and wherein the first fragment contains instructions for decoding the remaining fragments in a second mode by the selective call receiver, the transmitter (160) also repeatedly transmits the remaining portions of the message in subsequent time slots and at least one selective call receiver that decodes the first fragment and remaining fragments of the message in accordance with instructions in the decoded first fragment.

Abstract: The present invention relates to an apparatus for continuously carrying out washing, raising milling, scouring, bleaching and dyeing, of fabric. In carrying out the aforesaid operations, it is essential for the fabric to be carried forward in a stabilized and relaxed state accurately and continuously in a treating fluid and on the other hand the treating fluid should move vigorously without a hitch and come into contact with the fabric uniformly. In the present invention the stabilized posture of the fabric particularly in a treating space is emphasized and at the entry of the treating space the fabric is folded in the wavy form in good order resulting in the more uniform contact between the treating fluid or liquor and the fabric. Further jet or blowing angles of jet nozzles have been arranged to make jets of the treating liquor accurately strike the fabric.